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   Diamond Performance Parts :: Exhaust Systems :: IMCO

Powerflow manifolds are manufactured using the finest materials and most advanced techniques available. The high quality aluminum manifold castings feature water jackets that surround each exhaust passage, including the port, to eliminate the possibility of burn out. The outside manifold surfaces are then coated with the highest quality epoxy powder coating available, creating a part that not only is highly corrosion resistant, but good looking as well. Features an external fitting to accept stock MerCruiser thermostat plumbing.

   IMCO   
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 PowerFlow Small Block Manifold and "A" Riser Kit (Sold in pairs)
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PowerFlow Small Block Manifold and "A" Riser Kit (Sold in pairs)
SKU: 02-8340

These manifolds were designed for high horsepower 350 cid to 427 cid engines that are making 350 HP Plus. Manifolds have a 1 1/2" I.D. runner with a tall D port entry.

List Price: $2,428.00
Our price: $2,185.00, save 10%

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 PowerFlow Small Block Manifold and "SA" Riser Kit (Sold in pairs)
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PowerFlow Small Block Manifold and "SA" Riser Kit (Sold in pairs)
SKU: 02-8352

These manifolds were designed for high horsepower 350 cid to 427 cid engines that are making 350 HP Plus. Manifolds have a 1 1/2" I.D. runner with a tall D port entry.

List Price: $2,358.00
Our price: $2,122.00, save 10%

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IMCO Marine Exhaust Powerflow S-Pipe System Small Block Chevy
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IMCO Marine Exhaust Powerflow S-Pipe System Small Block Chevy
SKU: 02-8364

This "S" pipe is unique in many ways. It has an infinite number of advantages. This pipe will size up to many pre-existing port locations. It's great for below platform applications with large camshafts or high performance motors. It allows the exhaust to mix with water down at the first connecti...

List Price: $3,127.00
Our price: $2,814.00, save 10%

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IMCO Marine Exhaust Powerflow S-Pipe System, Big Block Chevy
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IMCO Marine Exhaust Powerflow S-Pipe System, Big Block Chevy
SKU: 02-8336

This "S" pipe is unique in many ways. It has an infinite number of advantages. This pipe will size up to many pre-existing port locations. It's great for below platform applications with large camshafts or high performance motors. It allows the exhaust to mix with water down at the first connecti...

List Price: $3,750.00
Our price: $3,375.00, save 10%

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PowerFlow Big Block Manifold and "SA" Riser Kit
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PowerFlow Big Block Manifold and "SA" Riser Kit
SKU: 02-8324

This "A" pipe is used with Bravo drives or King Cobra drives. It's short design allows for thru transom exhaust tip hook-up. This system has a 10% horsepower increase and 40-50 foot pounds of torque on stock engines. All Powerflow systems are available fully polished.

List Price: $2,894.00
Our price: $2,605.00, save 9%

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