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Eddie Marine EMI Thunder Exhaust System with Standard Risers

for SBC and BBC applications, these systems are equipped with standard cast aluminum short risers, and are direct replacements for many stock Mercruiser manifolds in Bravo and Alpha applications using exhaust selector systems or Merc "S" pipes. Eddie Marine EMI Thunder manifolds are hardcoat anodized (except polished version) to military spec to prevent corrosion—and come standard with a black Fusioncoat finish, with optional finish colors available. Choose the model recommended for your watercraft engine. Eddie Marine EMI Thunder systems include: * EMI exhaust manifolds * Aluminum risers * Bolts, exhaust and riser gaskets, fittings

5.0 out of 5 stars ( 2 )

$1,798.00

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$2,938.95

Eddie Marine EMI Thunder Exhaust System with High Performance Risers

Their best performing system—Eddie Marine EMI Thunder exhaust systems with high performance risers. They feature Thunder manifolds with integral water-cooled exhaust dividers and large individual runners for maximum horsepower gains. They're topped with long stainless steel high-flow risers (a must with high performance camshafts to prevent reversion—water ingestion). Offered for SBC and BBC, these systems are direct replacements for many stock Mercruiser manifolds, and the risers are also available in a 3 in. taller version to replace Merc manifolds using a spacer. Eddie Marine EMI Thunder manifolds are hardcoat anodized (except polished version) to military spec to prevent corrosion—and come standard with a black Fusioncoat finish, with optional finish colors available. Eddie Marine EMI Thunder systems include: * EMI exhaust manifolds * Stainless steel risers * Bolts, exhaust and riser gaskets, fittings

Not Yet Reviewed

$3,354.95

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$3,974.95

Eddie Marine EMI Thunder Exhaust System with Silent Choice High Performance Risers

Eddie Marine EMI Thunder exhaust systems with Silent Choice high performance risers are designed to be used with EMI Silent Select, as well as Mercury Silent Choice and other aftermarket selector systems. These systems are offered for a variety of SBC and BBC, including 3 in. taller versions to replace Merc manifolds using a 3 in. riser spacer block. Eddie Marine EMI Thunder manifolds are hardcoat anodized (except polished version) to military spec to prevent corrosion and come standard with a black Fusioncoat finish, with optional finish colors available. Eddie Marine EMI Thunder systems include: * EMI exhaust manifolds * Stainless steel risers * Bolts, exhaust and riser gaskets, and fittings

Not Yet Reviewed

$3,354.95

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$3,856.95

Kral Original Exhaust Manifold Bolt Repair Kits

Kral Original exhaust manifold bolt repair bracket kits provide a permanent fix that allows you to repair exhaust leaks without removing cylinder heads or broken bolts, saving your time and money. The traditional fix of removing and replacing broken manifold bolts does not necessarily fix the problem. The bolts will break again due to the factory bolts being too small. Also, the traditional repair of removing the cylinder heads and manifolds and drilling the broken bolts out of the cylinder head can cost you big money and labor time. Kral kits deliver a simple remedy to prevent this issue from reappearing. With a bracket kit for every manifold bolt, select the Kral Original bolt repair kit designed for your engine application.

Not Yet Reviewed

$29.65

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$58.80

Eddie Marine EMI Thunder Exhaust System with High Performance S-Pipe Risers

Eddie Marine EMI Thunder exhaust system with high performance "S" pipe risers offer the perfect solution for existing exhaust flow below swim steps. Featuring stainless steel high-flow risers, these EMI systems enable the exhaust to exit underwater at idle keeping them quiet when you want it most. Adjust the outlet position by changing the size of the exhaust hose connecting the riser with the exhaust bend. The 16 in. long risers are a must with high performance camshafts to prevent reversion (water ingestion). Eddie Marine EMI Thunder manifolds are hardcoat anodized (except polished version) to military spec to prevent corrosion and come standard with black Fusioncoat finish, with optional finish colors available. Eddie Marine EMI Thunder systems include: * EMI exhaust manifolds * Stainless steel risers * 80 degree bends * Bolts, exhaust and riser gaskets, fittings * 4 in. exhaust hose and clamps

Not Yet Reviewed

$4,781.95

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$4,798.95

Eddie Marine EMI Thunder Exhaust System with SS High Performance Dry Pipe Risers

Eddie Marine EMI Thunder exhaust systems with SS high performance dry pipe risers offer the ultimate performance with 32 in. stainless steel risers. These long risers will keep the water and exhaust separated until the very end of the pipe. If reversion is an issue with your high performance application, these EMI Thunder systems are your solution. The manifolds are hardcoat anodized (except polished version) to military spec to prevent corrosion—and come standard with a black Fusioncoat finish, with optional finish colors available. Order the model recommended for your watercraft engine. Eddie Marine EMI Thunder systems include: * EMI exhaust manifolds * Stainless steel risers

Not Yet Reviewed

$4,357.95

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$4,382.95

Eddie Marine EMI Thunder Exhaust Manifolds

Eddie Marine EMI Thunder exhaust manifolds deliver exceptional performance at affordable prices. They're constructed from the highest strength 356 aluminum that is heat-treated to a T-6 condition after it is cast. The manifolds are then hardcoat anodized—a process that thickens and toughens the naturally occurring protective oxide in the aluminum—to prevent corrosion of all surfaces, including the internal water passages. EMI Thunder manifolds feature superior runner designs and port separation. They are available in a variety of Fusioncoat colors or highly polished (uncoated). Order the model recommended for your engine application.

Not Yet Reviewed

$2,159.95

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$2,191.95

ATP Exhaust Manifolds

ATP exhaust manifolds are high-quality replacements developed from the OE specs to ensure they'll install and perform like the originals. These manifolds are manufactured from premium metals, like cast iron and stainless steel. All models are machined to ensure that the flanges are flat, mount evenly, and do not leak. Hundreds of models are available for fitment on countless vehicle and engine applications. ATP exhaust manifolds are backed by a limited lifetime warranty.

3.68 out of 5 stars ( 103 )

$122.99

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$501.99

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 ( 515 )

$111.27

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$777.95

Allstar Performance Exhaust Block-Off Plates

Allstar Performance exhaust block-off plates enable you to seal off exhaust ports when repairing or storing your engine. Machined from different thicknesses of aluminum, the plates will seal standard and spread port small block Chevy exhaust ports to protect against moisture, dust, and dirt.

4.5 out of 5 stars ( 4 )

$19.99

Sanderson Headers QP Series Exhaust Manifolds

Sanderson Headers QP Series exhaust manifolds, aka "Quiet Performers," are their cast iron header group that overcomes the limitations of tube-style headers in both fit and performance! Sanderson Headers QP1000, 2000, and 1200 exhaust manifold sets are able to produce gains in both low-end torque and high-end horsepower. These manifolds feature individual runners to separate exhaust pulses, cast-in anti-reversion baffling, and a D-port design for improved scavenging. They're also more compact than tubular headers and provide more clearance for your steering setups, accessories, and other chassis and engine components. Plus, some weigh less than your factory headers and all look a whole lot better! Sanderson headers offer the only patented flange leak-free, gasket-free design. For those of you who want to increase the life of your investment and control heat in your engine bay, they offer a multi-layer inside and out silver ceramic coating that is polished to a high luster. Get a tight seal without gaskets and create more torque and power at every rpm range with a set of Sanderson Headers QP Series exhaust manifolds.

4.9 out of 5 stars ( 21 )

$952.10

Sierra Marine Exhaust Manifolds

Sierra Marine exhaust manifolds are painted, packaged, and leak-tested. Your boat's exhaust manifold will not last forever and ignoring it could lead to engine problems. Sierra Marine offers a vast selection of quality units that will allow you to replace your corroded manifold, avert problems, and enjoy trouble-free service.

4.47 out of 5 stars ( 15 )

$215.99

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$289.99

Eddie Marine EMI Thunder Exhaust System for 496 Chevy with Silent Choice High Performance Risers

Eddie Marine EMI Thunder Exhaust Systems for 496 Chevy with Silent Choice high performance risers are designed to be used with EMI Silent Select, as well as Mercury Silent Choice and other aftermarket selector systems—or where a short riser is need for additional clearance. These systems are offered for Merc 496 Chevys, including 3 in. taller versions to replace some Merc manifolds using a 3 in. riser spacer block. This system is not recommended for use on engines with performance aftermarket camshafts. Eddie Marine EMI Thunder manifolds are hardcoat anodized (except polished version) to military spec to prevent corrosion—and come standard with black Fusioncoat finish, with optional finish colors available. Eddie Marine EMI Thunder System for 496 Chevy with Silent Choice high performance risers include: * EMI exhaust manifolds * Stainless steel risers with 10mm Merc temp sensor bungs * Oil filter, accessory bracket, and Merc water drains * Bolts, exhaust and riser gaskets, fittings * Jumper hoses * 5-year warranty

Not Yet Reviewed

$4,501.95

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$4,526.95

Eddie Marine EMI Thunder Exhaust System for 496 Chevy with SS High Performance Dry Pipe Risers

Eddie Marine's EMI Thunder Exhaust System for 496 Chevy with SS high performance dry pipe risers offers the ultimate performance with 32 in. stainless steel risers. These long risers will keep the water and exhaust separated until the very end of the pipe. If reversion is an issue with your high performance application, these EMI Thunder systems are your solution. The risers extend through the transom of your boat and do not require exhaust hose or outlets. Eddie Marine EMI Thunder manifolds are hardcoat anodized (except polished version) to military spec to prevent corrosion—and come standard with black Fusioncoat finish, with optional finish colors available. Eddie Marine EMI Thunder Exhaust System for 496 Chevy with SS high performance dry pipe risers includes: * EMI exhaust manifolds * Stainless steel risers with 10mm Merc temp sensor bungs * Oil filter, accessory bracket, and Merc water drains * Bolts, exhaust and riser gaskets, fittings * Jumper hoses * Stainless steel transom mounting flanges and gaskets * 5-year warranty

Not Yet Reviewed

$4,594.95

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$4,619.95

Eddie Marine EMI Thunder Exhaust System for 496 Chevy with High Performance S-Pipe Risers

Eddie Marine's EMI Thunder Exhaust System for 496 Chevy with high performance S-pipe risers offers the perfect solution for existing exhaust flow below swim steps. Featuring stainless steel high-flow risers, these EMI systems enable the exhaust to exit underwater at idle—keeping them quiet when you want it most. Adjust the outlet position by changing the length of the exhaust hose connecting the riser with the exhaust bend. The 16 in. long risers are a must with high performance camshafts to prevent reversion (water ingestion). Eddie Marine EMI Thunder manifolds are hardcoat anodized (except polished version) to military spec to prevent corrosion—and come standard with black Fusioncoat finish, with optional finish colors available. Eddie Marine EMI Thunder System for 496 Chevy with high performance S-pipe risers include: * EMI exhaust manifolds * Stainless steel risers with 10mm Merc temp sensor bungs * Oil filter, accessory bracket, and Merc water drains * 80 degree bends * Bolts, exhaust and riser gaskets, fittings * 4 in. exhaust hose and clamps * Jumper hoses * 5-year warranty

Not Yet Reviewed

$4,781.95

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$4,798.95

Eddie Marine EMI Thunder Exhaust System for 496 Chevy with +3 in. Taller High Performance Risers

Eddie Marine's EMI Thunder exhaust system for 496 Chevy with +3 in. taller high performance risers is their best performing system yet! They feature Thunder manifolds with integral water-cooled exhaust dividers and large individual runners for maximum horsepower gains. They're topped with long stainless steel high-flow risers (a must with high performance camshafts to prevent reversion—water ingestion). These systems are direct replacements for many stock Mercruiser 496 manifolds, and the risers are a 3 in. taller version to replace some Merc manifolds using a spacer. The Eddie Marine EMI Thunder manifolds are hardcoat anodized (except polished version) to military spec to prevent corrosion—and come standard with black Fusioncoat finish, with optional finish colors available. Eddie Marine Exhaust System for 496 Chevy with +3 in. taller high performance risers include: * EMI exhaust manifolds * Taller risers (+3 in.), stainless steel with 10mm Merc temp sensor bungs * Oil filter, accessory bracket, and Merc water drains * Bolts, exhaust and riser gaskets, fittings * Jumper hoses * 5-year warranty

Not Yet Reviewed

$4,199.95

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$4,229.95

Eddie Marine EMI Thunder Exhaust System for 496 Chevy with High Performance Risers

Eddie Marine's EMI Thunder Exhaust Systems for 496 Chevy with high performance risers is their best performing system yet! They feature Thunder manifolds with integral water-cooled exhaust dividers and large individual runners for maximum horsepower gains. They're topped with long stainless steel high-flow risers (a must with high performance camshafts to prevent reversion—water ingestion). These systems are direct replacements for many stock Mercruiser 496 manifolds, and the risers are also available in a 3 in. taller version to replace some Merc manifolds using a spacer. The Eddie Marine EMI Thunder manifolds are hardcoat anodized (except polished version) to military spec to prevent corrosion—and come standard with black Fusioncoat finish, with optional finish colors available. Eddie Marine Exhaust Systems for 496 Chevy with high performance risers include: * EMI exhaust manifolds * Stainless steel risers with 10mm Merc temp sensor bungs * Oil filter, accessory bracket, and Merc water drains * Bolts, exhaust and riser gaskets, fittings * Jumper hoses * 5-year warranty

Not Yet Reviewed

$4,501.95

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$4,526.95

Eddie Marine EMI Thunder 496 Chevy Exhaust Manifolds

Eddie Marine EMI Thunder 496 Chevy exhaust manifolds deliver exceptional performance at affordable prices. They're constructed from the highest strength 356 aluminum that is heat-treated to a T-6 condition after it is cast. The manifolds are then hardcoat anodized—a process that thickens and toughens the naturally occurring protective oxide in the aluminum—to prevent corrosion of all surfaces, including the internal water passages. (Polished manifolds have no corrosion-resistant coating.) Eddie Marine EMI Thunder 496 Chevy exhaust manifolds feature superior runner designs and port separation. They're available in a variety of Fusioncoat colors or highly polished (uncoated). Order the model recommended for your engine application. These Eddie Marine assemblies include: * EMI Thunder 496 Chevy exhaust manifolds * Oil filter, accessory bracket, and Merc water drains * Bolts, exhaust gaskets, and fittings * Jumper hoses

Not Yet Reviewed

$2,844.95

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$2,870.95

Dorman Exhaust Manifold Mounting Hardware

Dorman exhaust manifold mounting hardware is designed to replace broken, stripped, or corroded stock fasteners. The studs, bolts, and nuts are manufactured from quality materials and offered in a variety of finishes. Dozens of options are available; choose the lengths and thread sizes needed for your specific vehicle application. Pieces are sold individually, in pairs, or larger quantity sets. A secure exhaust manifold begins with Dorman mounting hardware.

4.07 out of 5 stars ( 288 )

$4.99

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$16.99

Walker Exhaust Manifold Hardware

Walker exhaust manifold hardware kits include a variety of components and are designed to work with Walker aftermarket parts on hundreds of vehicles dating as far back as the mid-70s. The pieces are manufactured from durable materials to ensure tight, leak-free connections. Beneath your chassis, Walker heavy-duty hardware helps to provide years of trouble-free performance.

4.4 out of 5 stars ( 15 )

$15.99

Dorman Exhaust Flange Hardware Kits

Dorman manifold bolt and spring kits are just what you need to secure the front flange. Dorman exhaust flange hardware kits are made of steel with a black finish and include a shoulder bolt, conical spring, lever nut, and locknut. Dorman offers products like fasteners and solutions to keep your vehicle running its best.

4.2 out of 5 stars ( 10 )

$6.99

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$7.99

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 )

$125.99

Sierra Marine Elbow Risers

Sierra Marine exhaust elbow risers are designed to fit the center rise exhaust manifolds used on specific early marine engines. The elbow risers feature precisely machined cast-iron bodies, are painted black, and come to you ready for installation right out of the box. Protect yourself and your investment, choose Sierra Marine's quality engine and drive parts and get back on the water with over 50 years of experience powering the way.

5.0 out of 5 stars ( 3 )

$189.99

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