2012 GMC Sierra Denali Performance Exhaust Systems

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    • (0 reviews)
      $431.58from $345.26 - $627.54
      GMC Sierra Denali 6.6L 2012, Force II™ Stainless Steel Exhaust System by Flowmaster®, MILD / MODERATE SOUND. 4" Tubing. 5" Polished Embossed Logo Tip. The Force II Series is designed for a mild, or mild - moderate performance...
      # 37991097
    • (0 reviews)
      $1,088.83from $871.06 - $876.08
      GMC Sierra Denali 1500 2012, MagnaFlow Series Cat-Back Exhaust System by MagnaFlow®, MODERATE TO AGGRESSIVE SOUND. These premium line exhaust systems for diesels without particulate filters include mandrel-bent stainless steel...
      # 49219085
    • (0 reviews)
      $301.90from $241.52 - $643.91
      GMC Sierra Denali 3500 HD 6.6L 2012, Pro Series DPF-Back Exhaust System by MagnaFlow®, MODERATE TO AGGRESSIVE SOUND. These entry level performance diesel systems feature 100% stainless steel satin finish mufflers and mandrel-bent...
      # 49219086
    • (0 reviews)
      $672.98from $538.38 - $923.38
      GMC Sierra Denali 3500 HD 6.6L 2012, Black Series Exhaust System by MagnaFlow®, MODERATE TO AGGRESSIVE SOUND. These premium line exhaust systems for diesels with particulate filters include mandrel-bent stainless steel tubing, 100%...
      # 23509744
    • (0 reviews)
      $1,193.55from $954.84 - $1,242.79
      GMC Sierra Denali 1500 2012, Cat-Back Exhaust System by Corsa®. Sport Sound. 3" Tubing. The patented Reflective Sound Cancellation (RFC) technology provides a unique combination of a Reserved, Distinctive Performance Sound on...
      # 45867678
    • (0 reviews)
      $618.74$494.99
      GMC Sierra Denali 2500 HD Duramax 2012, XP Series™ Filter-Back Exhaust System with Dual Smokers™ Stack Kit by MBRP®, MODERATE SOUND, 4" Tubing. Give your pickup some of that big-rig flavor with a set of SMOKERS. Nothing rumbles...
      # 3695973
    • (0 reviews)
      $423.59$338.87
      GMC Sierra Denali 2500 HD Diesel 2012, Monster™ DPF-Back Exhaust System by Banks®, Single Rear Exit. Includes 5.5"-3.5" Angle-Cut Tailpipe Tip. You'll appreciate the Monster Muffler's polished stainless finish and authoritative...
      # 45905488
    • (0 reviews)
      $423.59$338.87
      GMC Sierra Denali 2500 HD Diesel 2012, Monster™ DPF-Back Diesel Exhaust System by Banks®, Single Rear Exit. Includes 6"-5" Angle-Cut Rolled-Edge Tailpipe Tip. 100% stainless constant-diameter 4" system for diesel vehicles...
      # 45905486
    • (0 reviews)
      $756.00from $604.80 - $806.40
      GMC Sierra Denali 6.6L 2012, Eliminator Series DPF-Back Exhaust System by RBP®. Exhaust systems for offroad trucks can sometimes be difficult to find. Many offroaders have to resort to custom built systems which are expensive and...
      Made in Stainless Steel for DurabilityLowers Exhaust Gas Temperature
      # 42554397
    • (0 reviews)
      $993.75from $795.00 - $1,049.72
      GMC Sierra Denali Diesel 2012, by aFe®. 4" Tubing. Get increased exhaust flow, more horsepower and torque, improved performance and lower exhaust gas temperatures with the aFe Mach Force XP Exhaust System. aFe dyno tests every...
      # 39438944
    • (0 reviews)
      $743.75from $595.00 - $845.00
      GMC Sierra Denali Diesel 2012, by aFe®. 4" Tubing. The ATLAS Exhaust System channels the exhaust from the engine to the rear of the vehicle on a racing diesel engine truck. It has the least amount of exhaust flow restriction...
      # 39438938
    • (0 reviews)
      $707.49$565.99
      GMC Sierra Denali 1500 2012, Cat Back Exhaust System with Single Side Exit by Volant®. 3.0" Cat-Back, Single Side Exit with Single 4.0" Polished Slash Cut Tip. Each Cat-back exhaust system is made from premium, heavy gauge...
      Stainless Steel Bolt on ConstructionPolished T304 Tips
      # 51286504
    • (0 reviews)
      $748.34$598.67
      GMC Sierra Denali 6.0L 2012, Ultra Flo™ Stainless Steel Cat-Back Welded Exhaust System by DynoMax®. Angle Exit. 4" Tubing. 18" Stainless Steel Slant Cut Tip. Dyno proven to flow up to 2 SCFM and support up to 2 horsepower. 24...
      Unrestricted, straight-through design for a dyno-proven increase in horsepower and torqueUltra Flo Welded muffler will give your car a deep performance tone
      # 18216398
    • (0 reviews)
      $93.83$75.06
      GMC Sierra Denali 6.6L 2012, VT™ Stainless Steel Axle-Back Exhaust System by DynoMax®. Angle Exit. 5" Tubing. 14" Stainless Steel Slant Cut Cooling Tip. This system replaces the stock one from the axle back. It includes pipes,...
      Unrestricted, straight-through design for a dyno-proven increase in horsepower and torqueExclusive DynoMax Valve Technology delivers on-demand, drone-free performance and sound
      # 52037850
    • (0 reviews)
      $251.91from $201.53 - $464.25
      GMC Sierra Denali Diesel 2012, Exhaust System Kit by Diamond Eye Performance®. This products is created for those who are not afraid of the power. It is fine-tuned to deliver unrestricted power and tested against competition for...
      The finest quality at a great priceOE quality parts from top original equipment and aftermarket manufacturers
      # 15960546
    • (0 reviews)
      $473.00from $378.40 - $521.65
      GMC Sierra Denali Flex without EGR without Air Injection 2012, Performance Header by Gibson®. Let your engine breathe and gain power and performance with Gibson Performance Headers. These headers will flow much more exhaust than...
      # 39071119
    • (0 reviews)
      $993.75from $795.00 - $1,595.00
      GMC Sierra Denali 1500 2012, Twisted Steel Headers by aFe®. The new Twisted Steel performance header from aFe Power is redefining the header industry with the new pulse control technology. aFe engineers have designed this header...
      # 46178749
    • (0 reviews)
      $601.33$481.06
      GMC Sierra Denali 2500 HD 6.6L 2012, Sport Polished Stainless Steel Diesel Muffler by dB®, 4.00" Center Inlet / 4.00" Center Outlet, 9.62" Wide x 23.25" Case Length x 27.50" Overall Length. The patented RSC mufflers feature a...
      # 901693
    • (0 reviews)
      $159.55$127.64
      GMC Sierra Denali 6.0L 2012, Ultra Flo™ Direct Fit Welded Muffler by DynoMax®. 4" Offset Inlet / 4" Offset Outlet. 25" Body Length, 11.5" Body Width, 8.25" Body Height. No Reversible. Dyno proven to flow up to 2 SCFM and support...
      Unrestricted, straight-through design for a dyno-proven increase in horsepower and torqueEngineered to give your car a deep performance tone
      # 18216513
    • (0 reviews)
      $37.96from $30.37 - $34.72
      GMC Sierra Denali 2012, Exhaust Tip by DynoMax®. Includes Stainless Steel Clamps. These clamp-on stainless steel exhaust tips come in a variety of styles and sizes to make it easy for you to bolt on a custom look. Available in...
      304 Stainless Steel construction for longevity and corrosion resistanceMirror Polished for a show-like shine
      # 52154680
    • (0 reviews)
      $178.21$142.57
      GMC Sierra Denali 6.0L 2012, Intermediate Pipe by DynoMax®. 27" Overall Length. With their great selection of exhaust pipes and accessories, DynoMax will provide you with everything necessary to complete the exhaust job. Every...
      Designed to ensure unrestricted exhaust flowDirect fit – no modifications needed to install
      # 18215640
    • (0 reviews)
      $81.90from $65.52 - $136.26
      GMC Sierra Denali 6.0L 2012, Tail Pipe by DynoMax®. 4" Inlet / 4" Outlet. With their great selection of exhaust pipes and accessories, DynoMax will provide you with everything necessary to complete the exhaust job. Every component...
      Designed to ensure unrestricted exhaust flowDirect fit – no modifications needed to install
      # 18222089
    • (0 reviews)
      $35.86from $28.69 - $43.76
      GMC Sierra Denali 2012, Extension Pipe by DynoMax®. With their great selection of exhaust pipes and accessories, DynoMax will provide you with everything necessary to complete the exhaust job. Every component is manufactured from...
      Designed to ensure unrestricted exhaust flowDirect fit – no modifications needed to install
      # 18218596
    • (0 reviews)
      $153.11from $122.49 - $214.74
      GMC Sierra Denali Diesel 2012, Exhaust Pipe by Diamond Eye Performance®. This products is created for those who are not afraid of the power. It is fine-tuned to deliver unrestricted power and tested against competition for maximum...
      The finest quality at a great priceOE quality parts from top original equipment and aftermarket manufacturers
      # 15960563
    • (0 reviews)
      $29.01$23.21
      GMC Sierra Denali 6.0L 2012, Hanger by DynoMax®. DynoMax has you covered with a full line of accessories and hardware needed to do the complete exhaust job, from clamps to hangers. These small yet essential parts are available in a...
      Designed to do the exhaust job quickly and easilyOE-style fit, design, and finish
      # 52153882
    • (0 reviews)
      $12.51from $10.01 - $10.02
      GMC Sierra Denali 2012, Clamp by DynoMax®. DynoMax has you covered with a full line of accessories and hardware needed to do the complete exhaust job, from clamps to hangers. These small yet essential parts are available in a broad...
      Designed to do the exhaust job quickly and easilyOE-style fit, design, and finish
      # 52154677
    • (0 reviews)
      $101.63$81.30
      GMC Sierra Denali 1500 2012, Quiet-Flow™ SS Muffler by Walker®. Body Material - Stainless Steel, Color / Finish - Aluminized, Dimensions - 24" L x 9" W x 7" H, Oval Shape, Inlet Diameter - 3" ID, Outlet Diameter - 2.75" OD, Inlet...
      Designed for OE equivalent sound and precision fitSpun-locked heads for a proper resistance to backfire
      # 46778992
    • (0 reviews)
      $51.86from $41.49 - $117.36
      GMC Sierra Denali 1500 2012, Extension Pipe by Walker®. If you want exhaust piping that delivers precise OE-style fit, appearance, and reliability, this part is your number one choice. Every pipe is vehicle-specific and is...
      Designed to directly replace the factory partMade with precision benders and fixture checked
      # 46794755
    • (0 reviews)
      $70.63$56.50
      GMC Sierra Denali 1500 2012, Tail Pipe by Walker®. If you want exhaust piping that delivers precise OE-style fit, appearance, and reliability, this part is your number one choice. Every pipe is vehicle-specific and is manufactured...
      Designed to directly replace the factory partMade with precision benders and fixture checked
      # 46794758
    • (0 reviews)
      $59.94$47.95
      GMC Sierra Denali 6.0L 2012, Exhaust Pipe Gasket by Genuine®. Position: Front. Note: Between Catalytic Converter Pipe & Front Muffler. Is your car noisier these days? Can you smell exhaust fumes in the cabin? Exhaust system repairs...
      # 44701649
    • (0 reviews)
      $6.05from $4.84 - $12.76
      GMC Sierra Denali 1500 2012, Clamp by Walker®. With their extensive selection of accessories and hardware for the exhaust system, Walker will provide you with everything needed to do the complete exhaust job. When you choose Walker...
      Makes installation quick and easyOptimal OE-style fit and quality
      # 46794751
    • (0 reviews)
      $17.51from $14.01 - $18.07
      GMC Sierra Denali 1500 2012, Gasket by Walker®. With their extensive selection of accessories and hardware for the exhaust system, Walker will provide you with everything needed to do the complete exhaust job. When you choose...
      Makes installation quick and easyOptimal OE-style fit and quality
      # 46794748
    • (0 reviews)
      $12.00$9.60
      GMC Sierra Denali 1500 2012, Insulator by Walker®. 4" Exhaust Hanger Overall Length, 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
      # 46778993
    • (0 reviews)
      $7.60from $6.08 - $9.52
      GMC Sierra Denali 2500 HD / 3500 HD Flex 2012, Exhaust Pipe Flange Gasket 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...
      Direct OEM replacement for a proper fitEnsure reliable sealing performance
      # 40661888
    • (0 reviews)
      $504.00from $403.20 - $672.00
      GMC Sierra Denali 6.6L 2012, Sport Series DPF-Back Exhaust System by RBP®. Exhaust systems for offroad trucks can sometimes be difficult to find. Many offroaders have to resort to custom built systems which are expensive and often...
      Made in Stainless Steel for DurabilityLowers Exhaust Gas Temperature
      # 42554402
    • (0 reviews)
      $94.53from $75.62 - $146.90
      Universal 10 Series Delta Force Single Chamber Race Muffler by Flowmaster®, AGGRESSIVE SOUND. The 10 Series Race mufflers are a compact lightweight single chamber design that will give a noticeable sound reduction compared to open...
      # 898490
    • (0 reviews)
      $209.88from $167.90 - $267.60
      Universal 30 Series Delta Force™ 3-Chamber Race Muffler by Flowmaster®, AGGRESSIVE SOUND. These are the most powerful and the quietest professional race mufflers available. 5.00” & 6.00” thick case sizes for maximum power and...
      # 898450
    • (0 reviews)
      $132.48from $105.98 - $230.86
      Universal 40 Series Delta Force™ 2-Chamber Race Muffler by Flowmaster®, AGGRESSIVE SOUND. The 40-Series mufflers offer a combination of maximum power and substantial dB-reduction compared to open headers. They are recommended for...
      # 898479
    • (0 reviews)
      $246.58$197.26
      Universal 60 Series Delta Force Stainless Steel Race Muffler by Flowmaster®, MODERATE SOUND, 4" Offset Inlet / 4" Offset Outlet, 22" Length. These are the most powerful and the quietest professional race mufflers available.
      # 3146020
    • (0 reviews)
      $390.89$312.71
      Universal Delta Force™ Aluminized Steel Low Profile Oval Tubing Race Muffler by Flowmaster®, Aggressive Sound, 3.50" Dual Inlet / 3.50" Dual Outlet, 2.75 Thick x 11" Wide x 25" Length. The low profile mufflers are Delta Flow™...
      # 898448
    • (1 reviews)
      $111.25from $89.00 - $141.66
      Universal Outlaw™ Race Muffler by Flowmaster®, AGGRESSIVE SOUND. These mufflers are very small and lightweight. Attached directly to the collector they generally produce more power than open headers, while taking “the edge”...
      # 898456
    • (1 reviews)
      $236.09$188.87
      Universal Pro Series™ Stainless Steel Race Muffler with Turn Down by Flowmaster®, MODERATE SOUND, 6" Diameter x 16" Case Length. Laminar Flow Mufflers have applications in all forms of racing. The Cool Shell Technology makes...
      # 898465
    • (0 reviews)
      $234.83from $187.86 - $208.84
      Universal Scavenger Series Outlaw II Race Collector Muffler by Flowmaster®. These Delta Force Mufflers are designed to attach directly to the exhaust header primary tubes, replacing the collector in sprint and drag racing...
      # 23297627
    • (0 reviews)
      $274.15$219.32
      Universal Scavenger Series Race Collector Muffler by Flowmaster®. These Delta Force Mufflers are designed to attach directly to the exhaust header primary tubes, replacing the collector in sprint and drag racing applications. They...
      # 898468
    • (1 reviews)
      $108.85from $87.08 - $108.08
      Universal 40 Series Delta Flow™ Muffler by Flowmaster®, AGGRESSIVE SOUND, 4" Thick x 9.75" Wide x 13" Case Length x 19" Overall Length. The 2-chamber design of this muffler, incorporating the patented Flowmaster Delta Flow...
      # 897054
    • (0 reviews)
      $108.85$87.08
      Universal 40 Series Original Muffler by Flowmaster®, AGGRESSIVE SOUND, 4" Thick x 9.75" Wide x 13" Case Length x 19" Overall Length. This is the muffler that launched the success of Flowmaster. It is an aggressive sounding...
      # 897079
    • (0 reviews)
      $222.98$178.38
      Universal 50 Series Delta Flow™ Aluminized Steel Big Block Muffler by Flowmaster®, MILD SOUND, 5" Thick x 12" Wide x 22" Case Length x 28" Overall Length. The 50 Series Big Block Muffler is Flowmaster’s largest and quietest...
      # 897082
    • (0 reviews)
      $174.45$139.56
      Universal 50 Series Delta Flow™ Slimline Muffler by Flowmaster®, MODERATE SOUND. The 50 Series Delta Flow Slimline mufflers are designed for passenger cars. The sound characteristics are moderate exterior sound level and minimal...
      # 897156
    • (0 reviews)
      $193.74from $154.99 - $162.66
      Universal 50 Series HD Delta Flow™ Muffler by Flowmaster®, MODERATE SOUND, 4" Thick x 9.75" Wide x 18" Case Length x 23" Overall Length. The 50 Series HD Delta Flow mufflers are big mufflers for big trucks. With 4” internal...
      # 897102
    • (0 reviews)
      $163.98$131.18
      Universal 60 Series Delta Flow™ Aluminized Steel Muffler by Flowmaster®, MILD SOUND, 2.25" Center Inlet / 2.25" Center Outlet, 5" Thick x 10" Wide x 13" Case Length x 19" Overall Length. The 60 Series increases horsepower and...
      # 897052
    • (0 reviews)
      $190.19$152.15
      Universal 70 Series Delta Flow™ Big Block Muffler by Flowmaster®, MILD SOUND, 5" Thick x 10" Wide x 22" Case Length x 28" Overall Length. The 70 Series Big Block II Muffler uses a longer case for increased volume and added...
      # 897109
    • (0 reviews)
      $183.63from $146.90 - $205.66
      Universal Pro Series™ Laminar Flow Muffler by Flowmaster®, MODERATE SOUND. PRO Laminar Flow mufflers have a patented core design that is characterized by efficient exhaust scavenging and minimized drone. They produce a rich, deep...
      # 897161
    • (5 reviews)
      $87.49from $69.99 - $73.44
      Universal Super 10 Series Delta Flow™ Stainless Steel Muffler by Flowmaster®, AGGRESSIVE SOUND, 4" Thick x 9.75" Wide x 5.50" Case Length x 12.50" Overall Length. If you want to be arrested, you should mount this muffler on your...
      # 897126
    • (0 reviews)
      $131.15from $104.92 - $109.49
      Universal Super 40 Series Delta Flow™ Muffler by Flowmaster®, AGGRESSIVE SOUND, 5" Thick x 10" Wide x 13.50" Case Length x 19.50" Overall Length. The Super 40 Series Delta Flow Mufflers are developed from the Top Ten muffler...
      # 897132
    • (3 reviews)
      $104.88from $83.90 - $94.44
      Universal Super 44 Series Delta Flow™ Muffler by Flowmaster®, AGGRESSIVE SOUND, 4" Thick x 9.75" Wide x 13" Case Length x 19" Overall Length. The Super 44 has the deepest, richest, most aggressive muscle tone of all 4” street...
      # 897136
    • (0 reviews)
      $170.50from $136.40 - $142.98
      Universal Super 50 Series Delta Flow™ (SUV) Performance Muffler by Flowmaster®, MODERATE SOUND, 5" Thick x 10" Wide x 17" Case Length x 23" Overall Length. The Super 50 is suitable for everyday driving. Its large resonance...
      # 897149
    • (0 reviews)
      $137.73from $110.18 - $178.38
      Universal Super HP-2™ Stainless Steel Performance Muffler by Flowmaster®, 4" Thick x 5" Wide. The new Super HP-2 Series muffler offers the same great performance benefits and moderate tone that you would expect from our laminar...
      # 15943155
    • (0 reviews)
      $99.60from $79.68 - $124.88
      Universal Resonator by Flowmaster®. The resonators are designed for use in conjunction with Flowmaster Mufflers for improved sound reduction and minimize interior resonance.
      # 898502
    • (12 reviews)
      $219.99$175.99
      Universal S-Type™ Stainless Steel Round Muffler by Borla®. Get increased performance and the aggressive sound of power with this Universal S-Type Muffler. This is the same style austenitic stainless steel straight through muffler...
      # 25728287
    • (1 reviews)
      $306.24from $244.99 - $469.99
      Universal XR-1™ Multicore Stainless Steel Race Muffler by Borla®. The Borla XR-1 Multi-Core Muffler was developed on the race track to quiet the most severe engine noise without restricting power. They work so well that they're...
      # 959705



    Guides & Articles
    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...
    It has been a battle of the ages to make exhaust sound like it should. Having less bends or turns will not only improve the sound but also performance. A custom exhaust is always an option for the race inspired and spirited weekend warriors. Our manufactures offer everything needed to build a custom exhaust to your preference.
    Headers are installed because the stock exhaust manifolds usually flow poorly. An exhaust header has individual tubes for each exhaust port, allowing each exhaust pulse to flow unobstructed from the cylinder head. The tubes on headers are usually larger in diameter than the runners on an exhaust manifold and the tubes are mandrel bent for gradual radius bends.
    Popular Popular Products
    2012 GMC Sierra Denali Models
    • 2012 GMC Sierra 1500 Denali Performance Exhaust Systems
    • 2012 GMC Sierra 2500 HD Denali Performance Exhaust Systems
    • 2012 GMC Sierra 3500 HD Denali Performance Exhaust Systems