1978 Pontiac LeMans Exhaust Systems
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MagnaFlow®Pre-OBDII Direct Fit Catalytic ConverterPontiac Grand LeMans / LeMans with PRE-OBDII Standard 1978, Pre-OBDII Catalytic Converter by MagnaFlow®. Converter Configuration: Direct Fit. Without O2 Sensor Port. Catalytic Inlet Diameter: 2.5". Catalytic Outlet Diameter: 2.5". If...$890.00 - $913.00 - ATP®Cast Iron Natural Exhaust ManifoldPontiac LeMans 1978, Natural Cast Iron Exhaust Manifold by ATP®. Color: Natural. Header Coating: Uncoated. ATP Graywerks Exhaust Manifolds are a high quality OE replacement alternative. Each manifold is developed off of the original...Manufactured to OE design ensuring manifold will line up and flow like the original unitHigh grade metallurgy resists fatigue cracking and breakage$137.23 - $212.89
- Walker®SoundFX™ Steel Oval Direct-Fit Aluminized Exhaust MufflerPontiac Grand LeMans / LeMans 1978, SoundFX™ Steel Oval Direct-Fit Aluminized Exhaust Muffler by Walker®. Optional. Muffler Inlet Diameter: 2". Muffler Outlet Diameter: 2". Muffler Configuration: Offset - Centered. This muffler is the...Designed to deliver ultimate performance and pleasing sound qualityOE-equivalent direct-fit design$45.49 - $49.79
- Davico®Exhaust Manifold with Integrated Catalytic ConverterPontiac Grand LeMans / LeMans 1978, Exhaust Manifold with Integrated Catalytic Converter by Davico®. This product by Davico will be a great solution to replace your failed or damaged catalytic converter. Once your stock cat fails to...Helps your vehicle emit harmless gasesDirect OEM replacement$410.45 - $470.33
- Walker®Replacement Exhaust KitPontiac LeMans 1978, Replacement Exhaust Kit by Walker®. If you are looking for the ultimate in quality and value, then this superior replacement exhaust kit by Walker is what you need. All its components are designed with precision...Mufflers and Resonators Designed for OE equivalent sound and precision fitOE-style louvered tube technology for a premium, factory-like sound$45.49 - $419.54
- MagnaFlow®Pre-OBDII Universal Fit Round Body Catalytic ConverterPontiac Grand LeMans / LeMans with PRE-OBDII Standard 1978, Pre-OBDII Catalytic Converter by MagnaFlow®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Round. Without Air Tube. Without O2 Sensor Port. OE Spec....$560.00
- MagnaFlow®Standard Universal Fit Oval Body Catalytic ConverterPontiac Grand LeMans / LeMans 1978, Standard Catalytic Converter by MagnaFlow®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Oval. Without Air Tube. Without O2 Sensor Port. Catalytic Converter Overall Length:...$119.00
- Hedman Hedders®Standard Duty Mid-Length Tube Racing Exhaust HeadersPontiac LeMans with Power Steering, A.I.R, Automatic Transmission Floor Shifter / Automatic Transsmision Column Shifter and without EGR, Manual Transmission Column Shifter / Manual Transmission Floor Shifter 1978, Standard Duty...Made of High Quality MaterialsBuilt to Last$268.16 - $889.09
- Dorman®Cast Iron Natural Exhaust ManifoldPontiac Grand LeMans / LeMans 5.7L 1978, Cast Iron Natural Exhaust Manifold by Dorman®. Position: Driver Side. Color: Natural. Header Coating: Uncoated. This exhaust manifold was precision-engineered and durably manufactured to match...Ideal replacement - this exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the stock manifold on specified vehiclesReliable construction - durable materials resist warping, cracking and leaking for long-lasting performance$107.02
- MagnaFlow®Standard Direct Fit Catalytic ConverterPontiac Grand LeMans / LeMans 1978, Standard Catalytic Converter by MagnaFlow®. Converter Configuration: Direct Fit. Catalytic Inlet Diameter: 2.5". Catalytic Outlet Diameter: 2.5". If your car needs replacement, install one that will...$166.00 - $333.00
- Walker®SoundFX™ Steel Oval Aluminized Exhaust MufflerPontiac Grand LeMans / LeMans 1978, SoundFX™ Steel Oval Aluminized Exhaust Muffler by Walker®. Optional. Muffler Inlet Diameter: 2". Muffler Outlet Diameter: 2". Muffler Body Length: 19". Muffler Overall Length: 23.75". Muffler...Designed to deliver ultimate performance and pleasing sound quality100% aluminized material$46.81
- Walker®CalCat™ Universal Fit Catalytic ConverterPontiac LeMans 1978, CalCat™ Catalytic Converter by Walker®. Converter Configuration: Universal Fit. Catalytic Converter Overall Length: 13.25". Specifically designed to comply with the California Air Resources Board (CARB)...$377.86 - $525.16
- AP Exhaust®Standard Duty Universal Fit Oval Body Catalytic ConverterPontiac LeMans 1978, Standard Duty Catalytic Converter by AP Exhaust®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Oval. Without O2 Sensor Port. Catalytic Converter Overall Length: 14". Today’s exhaust...$82.40 - $95.99
- CATCO®Pre-OBDII Universal Fit Oval Body Standard Duty Catalytic ConverterPontiac LeMans with California Emission / with Federal Emission 1978, Pre-OBDII Standard Duty Catalytic Converter by CATCO®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Oval. Without O2 Sensor Port. Catalytic...$59.23 - $155.76
- ARP®Header Bolt KitPontiac LeMans 1978, Header Bolt Kit by ARP®. ARP manufactures a variety of premium grade bolt and stud kits to facilitate installation of exhaust headers including the popular stainless stud kit with 12-point nuts. The Stainless...Designed to unlock more performance out of your vehicleDeliver a reasonable balance of strength and durability$21.63 - $119.06
- BRExhaust®Replacement Exhaust KitPontiac LeMans 1978, Replacement Exhaust Kit by BRExhaust®. Get confidence with this high-standard OE quality purchase which is perfect for those who want to perform a long-lasting exhaust system repair. Made from top-notch materials,...Superior replacement for your worn out exhaust partHelps put your vehicle back to its tip-top shape$41.37 - $91.87
- iD Select®Standard Universal Fit Oval Body Catalytic ConverterPontiac LeMans 3.8L 1978, Standard Catalytic Converter by iD Select®. Converter Configuration: Universal Fit. Location: Undercar. Catalytic Converter Body Shape: Oval. Without Air Tube. Without O2 Sensor Port. Catalytic Inlet Diameter:...$80.44Save: 10%$72.40
- Walker®Ultra™ Universal Fit Small Oval Body Catalytic ConverterPontiac LeMans 1978, Ultra™ Catalytic Converter by Walker®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Small Oval. With 1 Inlet. Without O2 Sensor Port. Catalytic Converter Overall Length: 13.25"....$62.19 - $129.20
- Eastern Catalytic®Standard Universal Fit Oval Body Catalytic ConverterPontiac LeMans 3.8L 1978, Standard Catalytic Converter by Eastern Catalytic®. Converter Configuration: Universal Fit. Location: Undercar. Catalytic Converter Body Shape: Oval. Without Air Tube. Without O2 Sensor Port. Catalytic Inlet...$119.88
- Stage 8®Header Locking Bolt KitPontiac LeMans 1978, Header Locking Bolt Kit by Stage 8®. Stage 8 locking fastener solutions are fail-safe when used and installed as directed. They are removable and reusable and can be visually inspected; if the locking retainer and...Thoughtfully designed for the highest efficiency and safetyWill provide more breakaway torque than any other locking system$68.22 - $75.82
- Hedman Hedders®Elite Ultra-Duty Mild Steel Silver Matte Ceramic-Metallic Mid-Length Tube Racing Exhaust HeadersPontiac LeMans Automotic transmission without Air Conditioning, EGR, Manual Transmission Column Shifter / Manual Transmission Floor Shifter and with Power Steering, A.I.R, AutomaticTransmission, Chevrolet Small Block Engine / SB Chevy...Made of High Quality MaterialsIdeal for Heavy Duty Applications$721.27
- Hedman Hedders®Standard Duty Mild Steel Long Tube Exhaust HeadersPontiac LeMans Safari 3.8L with Air Conditioning, Power Steering, Chevy Engine, Automatic Transmission Column Shifter / Automatic Transmission Floor Shifter and without Smog Injection or Injection Heads 1978, Standard Duty Mild Steel...Made of High Quality MaterialsBuilt to Last$335.95 - $484.26
- Doug's Headers®4-Tube Short Tube Exhaust HeadersPontiac LeMans Automatic Transmission 1978, 4-Tube Short Tube Exhaust Headers by Doug's Headers®. Primary Tubing Diameter: 1.75". Header Coating: Ceramic. Header Style: Short Tube. Doug's Headers development and design is complex and...3/8" Thick machined flanges...no warpingCNC mandrel bent tubes... accurate fit & better flow$735.95 - $897.95
- Doug's Headers®4-Tube Steel Long Tube Exhaust HeadersPontiac Grand LeMans / LeMans 1978, 4-Tube Steel Long Tube Exhaust Headers by Doug's Headers®. Primary Tubing Diameter: 2". Header Coating: Ceramic. Header Style: Long Tube. Doug's headers are carefully developed on the vehicles they...Doug's Headers D3373 Metallic Ceramic Coating3/8" thick flanges$813.95 - $1,029.95
- Patriot Exhaust®Exhaust HeadersPontiac LeMans 1978, Exhaust Headers by Patriot Exhaust®. This superior Patriot Exhaust product is just for you. Carefully designed for maximum performance, is will more than just meet your needs and expectations. This product is built...Expertly crafted from premium materialsQuality design and workmanship$321.25 - $652.75
- Walker®Aluminized Steel Exhaust Intermediate PipePontiac Grand LeMans / LeMans 1978, Aluminized Steel Exhaust Intermediate Pipe by Walker®. Main Piping Diameter: 2". With their extensive selection of accessories and hardware for the exhaust system, Walker will provide you with...Made of high quality aluminized steelCorrosion resistant$22.72
- Walker®Aluminized Steel Exhaust TailpipePontiac Grand LeMans / LeMans with Early Design 1978, Aluminized Steel Exhaust Tailpipe by Walker®. If you want exhaust piping that delivers precise OE-style fit, appearance, and reliability, this part is your number one choice. Every...Designed to directly replace the factory partMade with precision benders and fixture checked$28.14
- Fel-Pro®Exhaust Manifold Gasket SetPontiac Grand LeMans / LeMans 1978, 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...Ensures reliable sealing performanceMade using advanced technologies and molded rubber chemistry$8.16 - $34.01
- Mahle®Exhaust Pipe Flange GasketPontiac Grand LeMans / LeMans 1978, Exhaust Pipe Flange Gasket by Mahle®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet...High quality at an affordable priceExpertly made from premium materials$2.14 - $7.62
- Dorman®Exhaust Flange Stud and Nut KitPontiac Grand LeMans / LeMans 1978, Exhaust Flange Stud and Nut Kit by Dorman®. Position: Front. Dorman’s Exhaust Flange Stud & Nut provides you with the proper flange stud and nut for replacing your manifold. Save time and energy by...Direct replacement for a proper fit every timeThe finest quality at a great price$4.45 - $7.19
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Different Trend® - Blue Flame Series Domed Straight Cut Double-Wall Exhaust Tip (2.25" Inlet, 3.5" Outlet, 7.25" Length)Posted by Zachary (Ontario, NY) / March 09, 20212006 Dodge Charger
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