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cpperformance

CP Performance Boaters Shopping and Product Info Guide
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Generic Aluminum Replacement Exhaust Systems

Featured here are generic aluminum manifolds and kits for various applications.

Click on the part number to check pricing or place an order.

HGE Exhaust - Direct Flow Aluminum Manifold System
 

These direct-flow marine replacement exhaust systems are manufactured to be direct replacements for stock Mercruiser cast iron exhaust manifolds and risers. These manifolds and risers are patterned directly after Mercrusier cast iron ones, but their lighter aluminum construction can take 50 lbs off your boat!

Part No. Description
654-200 Big Block Chevy Exhaust Kit (Manifolds, Risers, Bolts & Gaskets)
654-100 Small Block Chevy Exhaust Kit (Manifolds, Risers, Bolts & Gaskets)
430-53-1022 Big Block Ford Exhaust Kit (Manifolds, Risers, Bolts & Gaskets)
654-6219 Mercury 470 Replacement Aluminum Exhaust Manifold (each)
654-9011A Big Block Exhaust Manifolds (each)
654-7114A Small Block Exhaust Manifolds (each)
654-4354A Aluminum Risers (each)

Indmar - Universal Center-Rise Exhaust System

These manifolds have individual primaries for more torque and horsepower over your stock center rise or log style exhaust manifolds.  This is a great choice as an upgrade from log style manifolds. These manifolds have a steep down slope originally designed for jet boat applications.

Part No. Description
430-53-1021 Big Block Chevy Jet Kit with Aluminum Riser
430-53-2009 Small Block Ford with Aluminum Riser

Hardin Marine Exhaust - 455 Olds Square Exhaust Manifold

This is the popular square Oldsmobile exhaust manifold. The manifolds and risers themselves are no longer available, however replacement gaskets and accessories are.

Part No. Description

620-21074

Berkeley Exhaust Manifold, Jet, Olds (pair only)
620-24170 Riser Gasket (each)
620-24171 End cap Gasket (each)
655-453 Exhaust Gasket (pair)
620-45510 Exhaust Manifold Bolts (per manifold)
620-45511 End Cap Bolt Kit (per manifold)
620-09116

Riser Stud Kit (per manifold)