1991 Buick Roadmaster Performance Exhaust Systems

Change Vehicle
1 - 60 of 392 results
show:
sort by:
    • Dynatech® Dirt Late Model Headers
      (0 reviews)
      # 84198710
      Buick Roadmaster With Chevy Small Block Engine 1991, Dirt Late Model Headers by Dynatech®. These Long Tube Dirt Late Model Headers are designed for use with standard Chevy engines. The Long Tube design promotes excellent torque...
      $304.99 - $374.99
    • Dynatech® Long Tube Pavement Late Model Headers
      (0 reviews)
      # 84198723
      Buick Roadmaster With Chevy Small Block Engine 1991, Long Tube Pavement Late Model Headers by Dynatech®. These Long Tube Pavement Late Model Headers are designed for use with Standard Chevy engines. The Long Tube design promotes...
      $314.99 - $399.99
    • Dynatech® Mid Length Modified Headers
      (0 reviews)
      # 84198728
      Buick Roadmaster With Chevy Small Block Engine 1991, Mid Length Modified Headers by Dynatech®. These Small Block Chevy Mid Length Modified Headers have been designed for use with straight or angle plug heads and standard Chevy...
      $234.99 - $294.99
    • Dynatech® Mild Steel 604 Crate Engine Dirt Late Model Headers
      (0 reviews)
      # 84198707
      Buick Roadmaster With Chevy Small Block Engine 1991, Mild Steel 604 Crate Engine Dirt Late Model Headers by Dynatech®. These 604 Crate Engine Dirt Late Model Headers have been designed specifically for use with 604 Crate Engines....
      $359.99
    • Dynatech® Mild Steel IMCA Modified Headers
      (0 reviews)
      # 84198717
      Buick Roadmaster With Chevy Small Block Engine 1991, Mild Steel IMCA Modified Headers by Dynatech®. 1 Pair. These Small Block Chevy Modified Headers have been designed for use with standard Chevy engines. CNC Laser Cut Flanges and...
      $269.99 - $324.99
    • Dynatech® MuscleMAXX Headers, 1.625" Tubes 2.50" Collector Stainless Steel
      (0 reviews)
      # 84197980
      Buick Roadmaster With Chevy Small Block Engine 1991, MuscleMAXX Headers, 1.625" Tubes 2.50" Collector Stainless Steel by Dynatech®. 1 Pair. This Small Block Chevy Stainless Steel Block Hugger Header is an excellent way to improve...
      $299.99
    • Dynatech® Pavement Late Model Headers
      (0 reviews)
      # 84198735
      Buick Roadmaster With Chevy Small Block Engine 1991, Pavement Late Model Headers by Dynatech®. These Economy Chevy Crossover Headers are designed for use with a variety of engines and applications. Designed for angle or straight...
      $300.89 - $304.99
    • Dynatech® Spread Port Dirt Late Model Headers, 1.75
      (0 reviews)
      # 84197979
      Buick Roadmaster With Chevy Small Block Engine 1991, Spread Port Dirt Late Model Headers, 1.75 - 1.875" Tubes 3.50" Collector by Dynatech®. These Long Tube Dirt Late Model Headers are designed for use with Spread Port heads and...
      $374.99
    • Dynatech® Stainless Steel 604 Crate Engine Dirt Late Model Headers
      (0 reviews)
      # 84198738
      Buick Roadmaster With Chevy Small Block Engine 1991, Stainless Steel 604 Crate Engine Dirt Late Model Headers by Dynatech®. These Stainless Steel 604 Crate Engine Dirt Late Model Header Kits have been designed specifically for use...
      $924.99
    • Dynatech® Steel Weld-up Dragster Header Kit, 1.875-2.00"
      (0 reviews)
      # 84197981
      Buick Roadmaster With Chevy Small Block Engine 1991, Steel Weld-up Dragster Header Kit, 1.875-2.00" by Dynatech®. 1 Pair. These Long Tube Big Block Chevy Dragster Header kits are designed with ease of assembly and performance in...
      $339.99
    • Dynatech® Stock Clip Headers
      (0 reviews)
      # 84198741
      Buick Roadmaster With Chevy Small Block Engine 1991, Stock Clip Headers by Dynatech®. 1 Pair. These Small Block Chevy IMCA Southern Sport Mod Headers have been designed for use with angle or straight plug heads. IMCA Sport Mod...
      $238.99 - $309.99
    • MagnaFlow® Direct Fit Federal Pre-OBDII Catalytic Converter
      (0 reviews)
      # 22198095
      Buick Roadmaster 1991, Direct Fit Federal Pre-OBDII Catalytic Converter by MagnaFlow®. 2.5" Inlet / 2.5" Outlet Diameter. 5" Width. 2.5" Tubing Diameter. Includes Air Tube, O2 Sensor Ports. If your car needs replacement, install...
      Converter body manufactured from heavy-duty stainless steelIncreases exhaust flow compared to original factory converter
      $131.90
    • Dynatech® Header Gaskets
      (0 reviews)
      # 84197984
      Buick Roadmaster With Chevy Small Block Engine 1991, Header Gaskets by Dynatech®. Dynatech Fiber Race Gaskets are the premium gaskets demanded by many enthusiasts and racers alike. Specifically designed to fit a wide variety of...
      $15.99
    • Dynatech® Spread Port Gasket Set
      (0 reviews)
      # 84197982
      Buick Roadmaster With Chevy Small Block Engine 1991, Spread Port Gasket Set by Dynatech®. 1 Pair. Dynatech Fiber Race Gaskets are the premium gaskets demanded by many enthusiasts and racers alike. Specifically designed to fit a...
      $15.99
    • Dynatech® Standard Port Gasket Kit
      (0 reviews)
      # 84197983
      Buick Roadmaster With Chevy Small Block Engine 1991, Standard Port Gasket Kit by Dynatech®. 1 Pair. Dynatech Fiber Race Gaskets are the premium gaskets demanded by many enthusiasts and racers alike. Specifically designed to fit a...
      $15.99
    • BBK® Header Gasket Set
      (0 reviews)
      # 79634416
      Buick Roadmaster 1991, Header Gasket Set by BBK®. These premium steel core graphite gaskets are flexible for a long lasting leak-proof seal even when cylinder head and header flange surfaces aren’t perfectly flat. They can...
      Provides a long lasting, leak-proof sealFlexible graphite will conform to surface irregularities and won’t stick to headers or cylinder head
      $39.99
    • Proform® Header Gasket Set
      (0 reviews)
      # 84279766
      Buick Roadmaster 1991, Header Gasket Set by Proform®. Material: Soft Conforming Aluminum. Easily Mates and Conforms to the Surface of Exhaust Headers to Provide a Great Seal Each Time. Sold as One Pair. If you are looking to...
      Carefully designed to improve the performance of your vehicleCrafted from first-rate materials
      $25.30
    • Magnum Gasket® Exhaust Manifold Gasket Set
      (0 reviews)
      # 82704051
      Buick Roadmaster 1991, Exhaust Manifold Gasket Set by Magnum Gasket®. Standard. Magnum's Gasket engineers have utilized their many years of engine sealing experience to select the right technology choice for each of the Intake...
      $9.35
    • Dynatech® Aluminum Adapter Plate SBC to STAHL, 0.625 Thick
      (0 reviews)
      # 84197985
      Buick Roadmaster With Chevy Small Block Engine 1991, Aluminum Adapter Plate SBC to STAHL, 0.625 Thick by Dynatech®. Sold as kit. These Small Block Chevy to Stahl Aluminum Adapter Plate Kits allow you to use a larger tube size to...
      $159.99
    • Dynatech® MuscleMAXX Stainless Steel Header Reducer Cone Kit
      (0 reviews)
      # 84198732
      Buick Roadmaster With Chevy Small Block Engine LSX Engine 1991, MuscleMAXX Stainless Steel Header Reducer Cone Kit by Dynatech®. Sold as kit. Dynatech® reducer cone kits for MuscleMaxx headers. Reducers bolt to 4-bolt header...
      $99.99 - $139.99
    • Taylor Cable® Seal-4-Good™ Exhaust Header Gaskets
      (0 reviews)
      # 9382068
      Buick Roadmaster V8 5.0L E Engine VIN Code 1991, Seal-4-Good™ Exhaust Header Gaskets by Taylor Cable®. Don’t put up with that ominous, unmistakable “tick, tick, tick” sound of an exhaust manifold leak. If it isn’t leaking...
      $29.58 - $33.74
    • Taylor Cable® XX Carbon™ Exhaust Header Gaskets
      (0 reviews)
      # 9385770
      Buick Roadmaster V8 5.0L E Engine VIN Code 1991, XX Carbon™ Exhaust Header Gaskets by Taylor Cable®. These extreme high-temperature gaskets are well-suited for highly-modified engines: turbocharged, supercharged, nitrous or fuel....
      $18.79
    • Dorman® Exhaust Manifold
      (0 reviews)
      # 62430434
      Buick Roadmaster 1991, Exhaust Manifold by Dorman®. More like a complete kit than a single part, many of the Exhaust Manifolds include gaskets and hardware for a complete installation. Since this part is a direct replacement, the...
      Cast iron or stainless tubular construction protects against warping and/or crackingLeak-resistant for long-lasting performance
      $148.12
    • Walker® CalCat™ Small Oval Universal Fit Catalytic Converter
      (0 reviews)
      # 17735214
      Buick Roadmaster 1991, CalCat™ Small Oval Universal Fit Catalytic Converter by Walker®. Inlet Diameter 1: 2.25". Outlet Diameter: 2.25". Overall Length: 13.25". Body Dimensions: 10" Length x 6.125" Width x 4.25" Height. Inlet /...
      Constructed to meet your vehicle’s specific emissions requirementsFeatures stainless steel body with aluminized steel pipe and heat shields
      $119.22
    • Walker® Large Oval Direct Fit Catalytic Converter
      (0 reviews)
      # 17743478
      Buick Roadmaster without Air Tube with Federal Emission 1991, Large Oval Direct Fit Catalytic Converter by Walker®. Inlet Diameter 1: 2.25". Outlet Diameter: 2.875". Overall Length: 23". Body Dimensions: 13" Length x 7.5" Width x...
      Emission Warranty: 5 Years / 50,000 Miles (80,000 Kilometers)Structural Warranty: 5 Years / 50,000 Miles (80,000 Kilometers)
      $101.98
    • Walker® Large Oval Universal Fit Catalytic Converter
      (0 reviews)
      # 17735423
      Buick Roadmaster without Air Tube with Federal Emission 1991, Large Oval Universal Fit Catalytic Converter by Walker®. Inlet Diameter 1: 2.25". Outlet Diameter: 2.25". Overall Length: 18". Body Dimensions: 13" Length x 7.5" Width x...
      Emission Warranty: 5 Years / 50,000 Miles (80,000 Kilometers)Structural Warranty: 5 Years / 50,000 Miles (80,000 Kilometers)
      $80.39
    • Walker® Aluminized Round Resonator Assembly
      (0 reviews)
      # 18164294
      Buick Roadmaster 1991, Aluminized Round Resonator Assembly by Walker®. Inlet Diameter 1: 2.25". Outlet Diameter: 2.25". Overall Length: 21". Body Dimensions 1: 14" Length x 4" Width x 4" Height. Inlet / Outlet Quantity: 1 Inlet / 1...
      Designed to directly replace the factory partMade with precision benders and fixture checked
      $51.02
    • Walker® Quiet-Flow™ Stainless Steel Aluminized Oval Muffler
      (0 reviews)
      # 35431711
      Buick Roadmaster 1991, Quiet-Flow™ Aluminized Oval Muffler by Walker®. Inlet Diameter 1: 2.5". Inlet Configuration: Offset. Outlet Diameter: 2.5". Outlet Configuration: Offset. Overall Length: 23". Inlet / Outlet Quantity: 1...
      Designed for OE equivalent sound and precision fitSpun-locked heads for a proper resistance to backfire
      $63.36
    • Walker® SoundFX™ Aluminized Round Resonator
      (0 reviews)
      # 18171975
      Buick Roadmaster 1991, SoundFX™ Aluminized Round Resonator by Walker®. Inlet Diameter 1: 2.25". Outlet Diameter: 2.25". Overall Length: 23.5". Body Dimensions 1: 14" Length x 4" Width x 4" Height. Inlet / Outlet Quantity: 1 Inlet...
      Designed to directly replace the factory partMade with precision benders and fixture checked
      $31.71
    • Walker® SoundFX™ Aluminized Round Resonator Assembly
      (0 reviews)
      # 35440434
      Buick Roadmaster 1991, SoundFX™ Aluminized Round Resonator Assembly by Walker®. Inlet Diameter 1: 2.25". Outlet Diameter: 2.25". Overall Length: 20.75". Body Dimensions 1: 14" Length x 4" Width x 4" Height. Inlet / Outlet...
      Designed to directly replace the factory partMade with precision benders and fixture checked
      $28.46
    • Walker® SoundFX™ Stainless Steel Aluminized Oval Direct Fit Muffler
      (0 reviews)
      # 18167232
      Buick Roadmaster 1991, SoundFX™ Aluminized Oval Direct Fit Muffler by Walker®. Inlet Diameter 1: 2.5". Inlet Configuration: Offset. Outlet Diameter: 2.5". Outlet Configuration: Offset. Overall Length: 23". Inlet / Outlet...
      Designed to deliver ultimate performance and pleasing sound qualityOE-equivalent direct-fit design
      $35.99
    • Walker® SoundFX™ Stainless Steel Aluminized Oval Muffler
      (0 reviews)
      # 18172661
      Buick Roadmaster 1991, SoundFX™ Aluminized Oval Muffler by Walker®. Inlet Diameter 1: 2.25". Inlet Configuration: Offset. Outlet Diameter: 2.25". Outlet Configuration: Offset. Overall Length: 23". Inlet / Outlet Quantity: 1 Inlet...
      Designed to deliver ultimate performance and pleasing sound qualityUniversal fit – may require a few modifications to install
      $32.12
    • Walker® Stainless Steel Aluminized Oval Muffler
      (0 reviews)
      # 18180770
      Buick Roadmaster 1991, Aluminized Oval Muffler by Walker®. Inlet Diameter 1: 2.5". Inlet Configuration: Offset. Outlet Diameter: 2.5". Outlet Configuration: Offset. Overall Length: 23". Inlet / Outlet Quantity: 1 Inlet / 1 Outlet....
      Economical performance and acousticsUniversal fit allows for greater installation flexibility
      $32.39
    • Walker® Aluminized Extension Pipe
      (0 reviews)
      # 18131702
      Buick Roadmaster 1991, Aluminized Extension Pipe by Walker®. Diameter: 2.5". Inlet Diameter 1: 2.5". Outlet Diameter: 2.25". Overall Length: 24.5". Inlet / Outlet Quantity: 1 Inlet / 1 Outlet. Inlet Connection Type: Pipe...
      Designed to directly replace the factory partMade with precision benders and fixture checked
      $16.53
    • Walker® Aluminized Intermediate Pipe
      (0 reviews)
      # 18153863
      Buick Roadmaster 1991, Aluminized Intermediate Pipe by Walker®. Diameter: 2.5". Outlet Diameter: 2.5". Overall Length: 43". Inlet / Outlet Quantity: 1 Inlet / 1 Outlet. Inlet Connection Type: Spherical Flare. Outlet Connection...
      Made of High Quality Aluminized SteelCorrosion Resistant
      $19.50
    • Walker® Aluminized Tail Pipe
      (0 reviews)
      # 18180258
      Buick Roadmaster 1991, Aluminized Tail Pipe by Walker®. Diameter: 2.25". Inlet Diameter 1: 2.25". Outlet Diameter: 2.25". Overall Length: 14.125". Inlet / Outlet Quantity: 1 Inlet / 1 Outlet. Inlet Connection Type: Pipe Connection....
      Designed to directly replace the factory partMade with precision benders and fixture checked
      $26.69
    • Walker® Aluminized Y-Pipe
      (0 reviews)
      # 18183475
      Buick Roadmaster 1991, Aluminized Y-Pipe by Walker®. Outlet Diameter: 2.25". Overall Length: 18.375". Inlet / Outlet Quantity: 2 Inlets / 1 Outlet. Inlet Connection Type: 2 Bolt Loose Flange with Spherical Flare. Outlet Connection...
      Designed to directly replace the factory partMade with precision benders and fixture checked
      $63.05
    • Dorman® Exhaust Manifold Studs and Nuts
      (0 reviews)
      # 31543016
      Buick Roadmaster 1991, Exhaust Manifold Studs and Nuts by Dorman®. Thread: 3/8"-16. This is an aftermarket part that replaces factory OE # 9442012. Dorman’s Exhaust Manifold Hardware Kit provides you with the proper studs, bolts,...
      Direct replacement for a proper fit every timeDurable steel construction
      $6.67 - $8.52
    • Walker® Bare 2 Bolt Flange
      (0 reviews)
      # 18132277
      Buick Roadmaster 1991, Bare 2 Bolt Flange by Walker®. Inlet / Outlet Quantity: 1 Inlet / 1 Outlet. With their extensive selection of accessories and hardware for the exhaust system, Walker will provide you with everything needed to...
      Makes installation quick and easyOptimal OE-style fit and quality
      $8.18
    • Walker® Bracket
      (0 reviews)
      # 35433305
      Buick Roadmaster 1991, Bracket by Walker®. Inlet / Outlet Quantity: 1 Inlet / 1 Outlet. With their extensive selection of accessories and hardware for the exhaust system, Walker will provide you with everything needed to do the...
      Makes installation quick and easyOptimal OE-style fit and quality
      $8.22
    • Walker® Hanger
      (0 reviews)
      # 18145871
      Buick Roadmaster 1991, Hanger by Walker®. Inlet / Outlet Quantity: 1 Inlet / 1 Outlet. With their extensive selection of accessories and hardware for the exhaust system, Walker will provide you with everything needed to do the...
      Makes installation quick and easyOptimal OE-style fit and quality
      $12.07
    • Walker® U-Bolt Clamp
      (0 reviews)
      # 18129523
      Buick Roadmaster 1991, U-Bolt Clamp by Walker®. Diameter: 2.5". Inlet / Outlet Quantity: 1 Inlet / 1 Outlet. With their extensive selection of accessories and hardware for the exhaust system, Walker will provide you with everything...
      Makes installation quick and easyOptimal OE-style fit and quality
      $2.24
    • Fel-Pro® Exhaust Manifold Gasket Set
      (0 reviews)
      # 19063419
      Buick Roadmaster 1991, Exhaust Manifold Gasket Set by Fel-Pro®. If you need durable gaskets to prevent leaks on your vehicle, Fel-Pro is the way to go. Engineered using the latest technologies and global engineering resources, the...
      Direct OEM replacement for a proper fitEnsure reliable sealing performance
      $8.88
    • Walker® Donut Exhaust Gasket
      (0 reviews)
      # 18136342
      Buick Roadmaster 1991, Donut Exhaust Gasket by Walker®. Inlet / Outlet Quantity: 1 Inlet / 1 Outlet. Thickness: 0.291". Port Dimensions: 1.99" Length x 1.99" Width. With their extensive selection of accessories and hardware for the...
      Makes installation quick and easyOptimal OE-style fit and quality
      $9.74
    • Victor Reinz® Exhaust Manifold Gasket
      (0 reviews)
      # 24064279
      Buick Roadmaster 1991, Exhaust Manifold Gasket by Victor Reinz®, Use 1 per Car. When you’re low on oil, coolant or some other fluid, you may be tempted to just run down to the local auto parts chain store. But before you waste...
      $7.91 - $25.96
    • Taylor Cable® Graph-Flex™ Exhaust Header Gaskets
      (0 reviews)
      # 9379878
      Buick Roadmaster V8 5.0L E Engine VIN Code 1991, Graph-Flex™ Exhaust Header Gaskets by Taylor Cable®. These durable header flange gaskets are composed of a graphite composition material on a malleable stainless steel core....
      $20.70
    • Dorman® Front Exhaust Flange Stud and Nut
      (0 reviews)
      # 31659015
      Buick Roadmaster 1991, Front Exhaust Flange Stud and Nut by Dorman®. Size: M10-1.5 x 62mm; Package Quantity: 1; Package Type: Card. This is an aftermarket part that replaces factory OE # 10220453. Dorman’s Exhaust Flange Stud &...
      Direct replacement for a proper fit every timeDurable steel construction
      $9.92
    • Flowmaster® 200 Series OBDII Round Catalytic Converter
      (2 reviews)
      # 492248
      Universal 200 Series OBDII Stainless Steel Round Catalytic Converter by Flowmaster®. Inlet / Outlet Connection Type: Slip-Fit. Without O2 Sensor Port. The new Flowmaster replacement catalytic converters are made to meet and exceed...
      Exceed all federal emission standardsStainless Steel shells
      $116.53 - $204.95
    • Flowmaster® 220 Series Oval Catalytic Converter
      (5 reviews)
      # 87243712
      Universal 220 Series Stainless Steel Oval Catalytic Converter by Flowmaster®. Inlet / Outlet Connection Type: Slip-Fit. Without O2 Sensor Port. The new Flowmaster replacement catalytic converters are made to meet and exceed all...
      Exceed all federal emission standardsStainless Steel shells
      $68.56
    • Flowmaster® 222 Series Round Catalytic Converter
      (5 reviews)
      # 87243734
      Universal 222 Series Stainless Steel Round Catalytic Converter by Flowmaster®. Inlet / Outlet Connection Type: Slip-Fit. Without O2 Sensor Port. The new Flowmaster replacement catalytic converters are made to meet and exceed all...
      Exceed all federal emission standardsStainless Steel shells
      $67.12
    • Flowmaster® 223 Series Round Catalytic Converter
      (2 reviews)
      # 492138
      Universal 223 Series Stainless Steel Round Catalytic Converter by Flowmaster®. Inlet / Outlet Connection Type: Slip-Fit. Without O2 Sensor Port. The new Flowmaster replacement catalytic converters are made to meet and exceed all...
      Exceed all federal emission standardsStainless Steel shells
      $73.86
    • Flowmaster® 225 Series Oval Catalytic Converter
      (2 reviews)
      # 492154
      Universal 225 Series Stainless Steel Oval Catalytic Converter by Flowmaster®. Inlet / Outlet Connection Type: Slip-Fit. Without O2 Sensor Port. The new Flowmaster replacement catalytic converters are made to meet and exceed all...
      Exceed all federal emission standardsStainless Steel shells
      $68.02 - $71.98
    • Flowmaster® 240 Series Oval Catalytic Converter
      (7 reviews)
      # 87243745
      Universal 240 Series Stainless Steel Oval Catalytic Converter by Flowmaster®. Inlet / Outlet Connection Type: Slip-Fit. Without O2 Sensor Port. The new Flowmaster replacement catalytic converters are made to meet and exceed all...
      Exceed all federal emission standardsStainless Steel shells
      $141.53 - $144.93
    • Flowmaster® 250 Series Oval Catalytic Converter
      (5 reviews)
      # 87243747
      Universal 250 Series Stainless Steel Oval Catalytic Converter by Flowmaster®. Inlet / Outlet Connection Type: Slip-Fit. Without O2 Sensor Port. The new Flowmaster replacement catalytic converters are made to meet and exceed all...
      Exceed all federal emission standardsStainless Steel shells
      $130.99 - $147.34
    • Flowmaster® 260 Series Stainless Steel Oval Catalytic Converter (2600230)
      (5 reviews)
      # mpn886220
      Universal 260 Series Stainless Steel Oval Catalytic Converter without Air Tube by Flowmaster®. 3" Inlet / 3" Outlet Diameter, 21.5" Length. Inlet / Outlet Connection Type: Slip-Fit. Without O2 Sensor Port. The new Flowmaster...
      Exceed all federal emission standardsStainless Steel shells
      $247.74
    • Flowmaster® 282 Series OBDII Catalytic Converter
      (7 reviews)
      # 492281
      Universal 282 Series OBDII Stainless Steel Catalytic Converter by Flowmaster®. The new Flowmaster replacement catalytic converters are made to meet and exceed all federal environmental regulations and, as all Flowmaster products,...
      Exceed all federal emission standardsStainless Steel shells
      $102.20 - $142.92
    • Flowmaster® 283 Series OBDII Round Catalytic Converter
      (2 reviews)
      # 3138250
      Universal 283 Series OBDII Stainless Steel Round Catalytic Converter by Flowmaster®. Inlet / Outlet Connection Type: Slip-Fit. The new Flowmaster replacement catalytic converters are made to meet and exceed all federal...
      Exceed all federal emission standardsStainless Steel shells
      $110.23 - $127.74
    • Flowmaster® 284 Series OBDII Oval Catalytic Converter
      (2 reviews)
      # 87281464
      Universal 284 Series OBDII Stainless Steel Oval Catalytic Converter by Flowmaster®. Inlet / Outlet Connection Type: Slip-Fit. Without O2 Sensor Port. The new Flowmaster replacement catalytic converters are made to meet and exceed...
      Exceed all federal emission standardsStainless Steel shells
      $187.88
    • Flowmaster® 290 Series Oval Catalytic Converter
      (5 reviews)
      # 87243764
      Universal 290 Series Stainless Steel Oval Catalytic Converter by Flowmaster®. Inlet / Outlet Connection Type: Slip-Fit. The new Flowmaster replacement catalytic converters are made to meet and exceed all federal environmental...
      Exceed all federal emission standardsStainless Steel shells
      $108.66 - $128.44
    • Flowmaster® 3512 Series OBDII Stainless Steel Oval Catalytic Converter (3512025)
      (2 reviews)
      # mpn918025
      Universal 3512 Series OBDII Stainless Steel Oval Catalytic Converter without Air Tube by Flowmaster®. 2.5" Inlet / 2.5" Outlet Diameter, 14.25" Length. Inlet / Outlet Connection Type: Clamp-On. The new Flowmaster replacement...
      Exceed all federal emission standardsStainless Steel shells
      $163.39




    Guides & Articles

    • Performance Parts
      Engines have often been compared to air pumps, because the engine that’s most efficient in terms of economy and power is the one that can get air in and out of its cylinders the easiest. That’s why most performance modifications like conical air filters, cold air intake systems, headers, and cat-back exhaust systems are aimed at making the intake and exhaust systems less restrictive. These parts increase the flow of air into the engine and ease the flow of exhaust gas out of the engine. Among these components, headers may be the most difficult to install. In this article, we’ll discuss what headers do, their different types, and how much performance they can add to your car.
    • Performance Parts
      You may be wondering why so many aftermarket performance exhaust system manufacturers are offering dual exhaust systems connected by "H-pipe" or "X-pipe" sections. After all, aren't two separate pipes, or so-called "true duals", the best for performance? The answer is no, but to understand why we have to examine how a typical internal combustion engine works.
    • Performance Parts
      It's an age-old question that many have asked. Will an aftermarket exhaust be worth the expense? While they definitely can be, an important question to ask yourself is do you care more about the deeper sound they’re designed to produce, or the added performance gained from being less restrictive? As car enthusiasts, we’ve become accustomed to associating the sound of a car with its exhaust. After all, doesn’t everyone have a childhood memory or two of a car and the particular sound it made?
    • Performance Parts
      Regardless of whether you're shopping for a simple replacement muffler that delivers original equipment (OE) sound and performance or an upgraded muffler which provides a deeper growl with increased power through freer exhaust flow, you'll see choices between "direct fit" mufflers and "universal" mufflers. In this article, we'll help you understand the differences between these two styles so you can make a more informed purchase.

    Popular Products

    1991 Buick Roadmaster Performance Exhaust Systems Reviews

    Average rating:  4.5  4.5 - 77 reviews
    4 of 5
    Supper Cool Sound!
    I bought this for my Mitsubishi and it sounds awesome! It's got a 3.5 l v6 and it makes it sound like its very souped up! And almost like it has a v8 in it. I couldn't be more happy with this product the sound will blow your mind on whatever you choose to put it on whether it be a six cylinder like I put it on or a v8 very much recommend this product if you want a really nearly sound.
    SPosted by Shawn (Shakopee, MN) /
    Was this review helpful for you? Yes
    View More
    Related 1991 Buick Roadmaster Pages
    SECURE SHOPPING

    All manufacturer names, symbols, and descriptions, used in our images and text are used solely for identification purposes only.
    It is neither inferred nor implied that any item sold by CARiD.com, is a product authorized by or in any way connected with any vehicle manufacturers displayed on this page.