1978 Pontiac LeMans Exhaust Headers & Manifolds
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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$98.66 - 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$134.83 - $209.60
- 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®Stainless Steel Bare 2-Bolt Exhaust FlangePontiac LeMans 5.0L / 5.7L with Dual Outlet 1978, Stainless Steel Bare 2-Bolt Exhaust Flange by Walker®. With their extensive selection of accessories and hardware for the exhaust system, Walker will provide you with everything needed...Makes installation quick and easyOptimal OE-style fit and quality$10.10
- 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
- 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$283.05 - $556.13
- 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$784.89
- 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
- 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
- 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
- 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$8.28 - $34.01
- BBK®Premium Header Gasket SetPontiac LeMans 1978, Premium 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$44.99
- Mahle®Exhaust Manifold Gasket SetPontiac LeMans 1978, Exhaust Manifold Gasket Set 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 your needs...High quality at an affordable priceExpertly made from premium materials$6.85 - $29.82
- Remflex®Exhaust Header GasketsPontiac Grand LeMans / LeMans 5.0L / 5.7L 1978, Exhaust Header Gaskets by Remflex®. Stahl 7-Bolt Pattern. Remflex's unique flexible graphite material has been proven for more than 30 years in industrial applications. Whether you have an...Designed to crush 50%This allows them to fill gaps in the flange surface up to 1/16"$39.43
- Patriot Exhaust®Percy's Seal-4-Good™ Exhaust Header GasketsPontiac LeMans 1978, Percy's Seal-4-Good™ Exhaust Header Gaskets by Patriot Exhaust®. The Percy's Seal-4-Good Reusable Flange Gaskets are multi-layered and made from a special "Dead Soft" Aluminum, which conforms to header flanges for...Special "dead soft" aluminum conforms to flange to make an excellent sealSolid metal gasket will not blow out$44.95
- Apex Auto®Exhaust Manifold Gasket SetPontiac Grand LeMans / LeMans 1978, Exhaust Manifold Gasket Set by Apex Auto®. Designed utilizing the latest technology, this product by Apex Auto features premium quality and will perform better than advertised. Perfect for your...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$5.13 - $6.60
- Patriot Exhaust®Percy's Seal-4-Good™ Aluminum Header Flange GasketsPontiac LeMans 1978, Percy's Seal-4-Good™ Aluminum Header Flange Gaskets by Patriot Exhaust®. Hanger made from Steel. Great for bringing back the custom car look some popular in the 50's and 60's.Will cover your exhaust needs and even moreBuilt to last$44.95
- Edelbrock®Exhaust Gasket SetPontiac Grand LeMans / LeMans 5.0L / 5.7L 1978, Exhaust Gasket Set by Edelbrock®. Any gasket can create a seal, but a good gasket can do it with less clamping force, and for a longer period of time. Edelbrock's gaskets are not only...The finest quality at a great priceEdelbrock carry everything needed to complete the job$24.95
- Dorman®Metal HELP Exhaust Manifold Bolt and Spring KitPontiac Grand LeMans / LeMans 3.8L / 5.0L / 5.7L 1978, Metal HELP Exhaust Manifold Bolt and Spring Kit by Dorman®. Position: Front. Exhaust manifold fastener kits provide a time-saving solution for repairing the manifold. Each kit is...New hardware helps fix exhaust leaksKits include hardware to securely attach the manifold to the exhaust system$4.90
- Dorman®Brass Exhaust Manifold NutsBrass Exhaust Manifold Nuts by Dorman®. Dorman's Exhaust Nuts are now available separately for exhaust manifold repairs. These direct replacement nuts are ideal for securing exhaust components and used in conjunction with a mating bolt...Direct replacement for a proper fit every timeHigh-quality materials provides years of trouble-free service$4.76
- Victor Reinz®Exhaust Manifold Gasket SetPontiac Grand LeMans / LeMans 1978, Exhaust Manifold Gasket Set by Victor Reinz®. 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...High quality at an affordable priceExpertly made from premium materials$10.50 - $15.42
- Nickson®Exhaust Manifold InsulatorExhaust Manifold Insulator by Nickson®. Nickson was the first to introduce exhaust products to the aftermarket. This represented a substantial upgrade in the quality of products especially since they took both the Ford and GM OE designs...Expertly crafted from premium materialsQuality design and workmanship$6.02
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1978 Pontiac LeMans Models
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