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Dorman Exhaust Manifolds

Dorman exhaust manifolds offer a reliable, direct-fit installation for your vehicle. Manufactured from high-quality materials, they provide the perfect replacements for your worn-out factory piece. Dorman lends a hand in maintaining the exhaust manifold on your daily driver by providing the right fit at the right price--no longer are these "dealer only" parts. Get what you need--think Dorman for your replacement exhaust manifolds.

4.33 out of 5 stars ( 522 )

$349.99

$57.50

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$989.99

Pacific Performance Engineering Exhaust Manifolds

Replacing your stock exhaust manifold and up-pipes should be the first step in building a high performance exhaust system. Pacific Performance Engineering exhaust manifolds are co-designed by Honeywell (Garrett) and PPE, using CAD software to maximize flow characteristics. The included up-pipe bellows are high-flow, internally sleeved, and manufactured from 11-gauge, 0.120 in. wall aircraft-grade stainless steel with a 2 in. O.D. The exhaust manifolds are machined from high-silicon moly cast iron; feature built-in bosses; and are pre-drilled and tapped for a 1/8 in. NPT EGT sensor. PPE exhaust manifolds will help lower exhaust gas temperatures, reduce drive pressure, and accelerate turbo spool-up while maintaining reliability. Order the model recommended for your application.

3.0 out of 5 stars ( 2 )

$899.99

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$1,520.99

On Sale

Patriot LS Cast Tubular Manifolds

Patriot cast iron manifolds designed for GM LS engines offer a wide variety of fitment applications maximizing engine bay clearance. They also incorporate a sealing dome and ships with a pair of 304 series stainless steel reducers to help route your exhaust system with more adjustment options than the competition--no more expensive GM gaskets needed to get you on the road. Patriot cast iron manifolds will fit many of their LS engine swaps. Finishes offered for Patriot cast iron manifolds: * Metallic Ceramic Thermal Barrier Coating (MCTBC), which is polished with a vibratory finishing process that not only produces a high-luster aluminum appearance, but also compresses and activates the coating, which increases the surface hardness. The finish is 60 percent more corrosion resistant than an unpolished surface, easy to maintain, and will last for years under normal operation conditions. MCTBC also protects and extends the life of headers by creating a thermal barrier (heat-resistant up to 1,600 degrees F) that significantly lowers under hood temperatures and protects the substrate metal from thermal fatigue. * Hi-Temp black coating is an affordably priced alternative to their MCTBC. This finish provides good corrosion and heat protection when compared to many of the "cheaper" header finishes being applied by our competitors. * Raw cast is available for individual customizing

4.33 out of 5 stars ( 15 )

$348.50

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$492.80

$313.65

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$443.52

Trail-Gear Exhaust Manifold Stud and Nut kits

Trail-Gear exhaust manifold stud and nut kits are a must-have for installing new aftermarket headers. These TG kits maintain an even clamping force to keep the header tight against the head, sealing the exhaust gasket properly. If the studs on your truck are old, it's cheaper and easier to replace studs than it is to remove broken ones. Choose Trail-Gear replacement stud and nut kits to do the job properly. They're available for fitment on a variety of make/model and engine applications.

4.0 out of 5 stars ( 1 )

$9.99

Sierra Marine Intake Manifold Spacers

Sierra Marine intake manifold spacers are a perfect replacement designed to help you maintain your high-performing Marine engine. Made from quality material, these spacers meet or exceed OEM specifications in quality and performance of the original part it replaces. Order the application you need.

5.0 out of 5 stars ( 1 )

$122.99

Catco Direct-Fit Catalytic Converters

Since you have to use a catalytic converter anyhow, you might as well use one that will last a long time and maintain your vehicle's performance level in the process. Catco direct-fit catalytic converters feature 409 stainless steel shells, 16-gauge stainless steel pipes and nipples, and a heat-resistant sealed mat—all of which help them to last longer. These Catco units are direct replacements for OE converters and will install with little or no modification. Some converters have steel air tubes with perforated holes to help distribute the airflow evenly, without robbing power. New flanges are included when necessary. Order the model designed for your vehicle application.

4.25 out of 5 stars ( 53 )

$661.99