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IMCO Marine Exhaust Systems - Tailpipes

Big Block Stainless Steel "A" Risers
Your Price:
$1,175.99

Big Block Stainless Steel "A" Risers

421-02-6096

Big Block Stainless Steel "A" Risers

Big Block Stainless steel "A" risers are designed for stock Mercruiser Bravo exhaust tip locations. 3/4"npt fitting is used on front of pipe for thermostat housing that have (4) 1" hoses water to go to exhaust manifolds if needed click on (ADD BUNG). Shift bracket, ECM, or EFI brackets available as bolt on or welded to the risers.To order see PowerFlow Accessories or Related Products. (Sold in pairs)


Big Block Stainless Steel "A" Risers 3"
Your Price:
$1,203.99

Big Block Stainless Steel "A" Risers 3"

421-02-6097

Big Block Stainless Steel "A" Risers 3"

Big Block 3" Stainless steel "A" risers are designed for stock Mercruiser Bravo exhaust with 3" riser block between manifold & Riser. tip locations should be 3" higher then stock. 3/4"npt fitting is used on front of pipe for thermostat housing that have (4) 1" hoses water to go to exhaust manifolds if needed click on (ADD BUNG). Shift bracket, ECM, or EFI brackets available as bolt on or welded to the risers.To order see PowerFlow Accessories or Related Products. (Sold in pairs)


Big Block Stainless Steel "A" Risers 6"
Your Price:
$1,230.99

Big Block Stainless Steel "A" Risers 6"

421-02-6098

Big Block Stainless Steel "A" Risers 6"

Big Block 6" Stainless steel "A" risers are designed for stock Mercruiser Bravo exhaust with 6" riser block between manifold & Riser. tip locations should be 6" higher then stock. 3/4"npt fitting is used on front of pipe for thermostat housing that have (4) 1" hoses water to go to exhaust manifolds if needed click on (ADD BUNG). Shift bracket, ECM, or EFI brackets available as bolt on or welded to the risers.To order see PowerFlow Accessories or Related Products.


Big Block Stainless Steel "S" Pipe
Your Price:
$1,975.99

Big Block Stainless Steel "S" Pipe

421-02-6105

Big Block Stainless Steel "S" Pipe

Big Block std. Stainless steel "S" pipe is unique in many ways. These pipes will fit many pre-existing port locations That are about crankshaft center line, and is widely used with swim step applications as well as V-Drives and Jet boats.the lower elbow is adjustable up & down with a 4" exhaust tip hose contention.

3/4"npt fitting is used on front of pipe for thermostat housing that have (4) 1" hoses water to go to exhaust manifolds if needed click on (ADD BUNG). Shift bracket, ECM, or EFI brackets available as bolt on or welded to the risers.To order see PowerFlow Accessories or Related Products. (Sold in pairs)


Big Block Stainless Steel "SA" Risers
Your Price:
$1,149.99

Big Block Stainless Steel "SA" Risers

421-02-6108

Big Block Stainless Steel "SA" Risers (Pictured with optional bung)

Big Block std. Stainless steel "SA" riser pipes are designed for Mercruiser Silent Choice, Corsa Quick and Quiet (with modifications), and IMCO's Sound Advantage systems. 3/4"npt fitting is used on front of pipe for thermostat housing that have (4) 1" hoses water to go to exhaust manifolds if needed click on (ADD BUNG). Shift bracket, ECM, or EFI brackets available as bolt on or welded to the risers.To order see PowerFlow Accessories or Related Products. pipes can also be used with our Aluminum "S" pipes part number 02-1225 for under swim step applications. (Sold in pairs)

When using these risers it's best to order 2 each 02-2242 oval hoses for the wishbone connection.


Big Block Stainless Steel "SA" Risers 3"
Your Price:
$1,145.99

Big Block Stainless Steel "SA" Risers 3"

421-02-6109

Big Block 3" Stainless Steel "SA" Riser Pipes (Pictured with optional bung)

Big Block 3" Stainless steel "SA" riser pipes are designed to replace stock Mercruiser Bravo exhaust with 3" riser block between manifold & Riser. 3/4"npt fitting is used on front of pipe for thermostat housing that have (4) 1" hoses water to go to exhaust manifolds if needed click on (ADD BUNG). Shift bracket, ECM, or EFI brackets available as bolt on or welded to the risers.To order see PowerFlow Accessories or Related Products. They can also be used with our Aluminum "S" pipes part number 02-1225 for under swim step applications. (Sold in pairs)


Big Block Stainless Steel "SA" Risers 6"
Your Price:
$1,170.99

Big Block Stainless Steel "SA" Risers 6"

421-02-6110

Big Block 6" Stainless steel "SA" riser pipes (Pictured with optional bung)

Big Block 6" Stainless steel "SA" riser pipes are designed to replace stock Mercruiser Bravo exhaust with 6" riser block between manifold & Riser. 3/4"npt fitting is used on front of pipe for thermostat housing that have (4) 1" hoses water to go to exhaust manifolds if needed click on (ADD BUNG). Shift bracket, ECM, or EFI brackets available as bolt on or welded to the risers.To order see PowerFlow Accessories or Related Products. They can also be used with our Aluminum "S" pipes part number 02-1225 for under swim step applications. (Sold in pairs)


Mercruiser Replacement Riser 3" Taller "A"
Your Price:
$1,163.99

Mercruiser Replacement Riser 3" Taller "A"

421-02-6193

Mercruiser Replacement Riser (Sold in pairs)

3" taller thru transom stainless steel riser pipes fit stock Mercruiser center rise manifolds, as well as Glenwood Magnaflow manifolds. These pipes have shown a performance gain of 9 horsepower in our dyno test over stock risers. (Sold in pairs)

All kits include all necessary mounting hardware and gaskets. Weld on or Bolt on brackets for Shift, ECM< or EFI, see Merc Replacement Risers or Related Products.


Mercruiser Replacement Riser 6" Taller "A"
Your Price:
$1,226.99

Mercruiser Replacement Riser 6" Taller "A"

421-02-6194

Mercruiser Replacement Riser  (Sold in pairs)

6" taller thru transom stainless steel riser pipes fit stock Mercruiser center rise manifolds, as well as Glenwood Magnaflow manifolds. These pipes have shown a performance gain of 9 horsepower in our dyno test over stock risers. (Sold in pairs)

All kits include all necessary mounting hardware and gaskets. Weld on or Bolt on brackets for shift, ECM or EFI, see Merc Replacement Risers or Related Products.


Mercruiser Replacement Riser 6" Taller "SA"
Your Price:
$1,186.99

Mercruiser Replacement Riser 6" Taller "SA"

421-02-6197

Mercruiser Replacement Riser  (Sold in pairs)

6" taller thru transom and silent choice stainless steel riser pipes fit stock Mercruiser center rise manifolds, as well as Glenwood Magnaflow manifolds. These pipes have shown a performance gain of 9 horsepower in our dyno test over stock risers. (Sold in pairs)

All kits include all necessary mounting hardware and gaskets. Weld on or Bolt on brackets for Shift, ECM or EFI, see Merc Replacements Risers or Related Products.


Mercruiser Replacement Riser Standard Ht "A"
Your Price:
$1,193.99

Mercruiser Replacement Riser Standard Ht "A"

421-02-6192

Mercruiser Replacement Riser Standard Ht "A" (Sold in Pairs)

Standard height thru transom stainless steel riser pipes fit stock Mercruiser center rise manifolds, as well as Glenwood Magnaflow manifolds. These pipes have shown a performance gain of 9 horsepower in our dyno test over stock risers. (Sold in pairs) All kits include all necessary mounting hardware and gaskets. Weld on or Bolt on brackets available for Shift, ECM or EFI, see Merc Replacement Risers or Related Products.


PowerFlow Plus 30-Degree Risers (Black)
Your Price:
$1,375.99

PowerFlow Plus 30-Degree Risers (Black)

421-02-8069

Black PowerFlow Plus 30-deg Risers

Black PowerFlow Plus 30-deg Riser (Sold in pairs)

IMCO's innovative patented cast aluminum manifolds and risers are designed with 33" internal runners for those 510 and bigger cubic inch, naturally aspirated, or blown big block Chevy motors. Fully water-jacketed with NO water passing though the flange area of the manifold or riser pipe. Manifold has 2 1⁄4" primary runners they are equal to any tubular header on the market today. Dyno results have proven that PowerFlow Plus out performs most headers in torque, rpm, horsepower, and most of all longevity. Risers are available in three different configurations, three different heights, and two finishes Polished or Black. Black manifolds are hard coat anodized inside and out to withstand tough marine environments. All stainless steel tail pipes are custom made to your exact specifications. We also offer several different internal mufflers systems for you to choose. Please call IMCO for further information.


PowerFlow Plus 30-Degree Risers (Polished)
Your Price:
$1,245.99

PowerFlow Plus 30-Degree Risers (Polished)

421-02-8071

Polished PowerFlow Plus 30-deg Risers

Polished PowerFlow Plus 30-deg Riser (shown with PowerFlow Plus Manifold) (Sold in pairs)

IMCO's innovative patented cast aluminum manifolds and risers are designed with 33" internal runners for those 510 and bigger cubic inch, naturally aspirated, or blown big block Chevy motors. Fully water-jacketed with 2 1⁄4" primaries, they are equal to any tubular header on the market today. Dyno results have proven that PowerFlow Plus out performs headers in torque, rpm, horsepower, and most of all longevity. Risers are available in three different configurations, three different heights, and two finishes Polished or Black. Black manifolds are hard coat anodized inside and out to withstand tough marine environments. All stainless steel tail pipes are custom made to your exact specifications. We offer several internal mufflers for you to choose. Please call IMCO for further information.


PowerFlow Plus 85-Degree Risers (Black)
Your Price:
$1,375.99

PowerFlow Plus 85-Degree Risers (Black)

421-02-8073

Black PowerFlow Plus 85-deg Risers

Black PowerFlow Plus 85-deg Riser (Sold in pairs)

IMCO's innovative patented cast aluminum manifolds and risers are designed with 33" internal runners for those 510 and bigger cubic inch, naturally aspirated, or blown big block Chevy motors. Fully water-jacketed with NO water passing though the flange area of the manifold or riser pipe. Manifold has 2 1⁄4" primary runners they are equal to any tubular header on the market today. Dyno results have proven that PowerFlow Plus out performs most headers in torque, rpm, horsepower, and most of all longevity. Risers are available in three different configurations, three different heights, and two finishes Polished or Black. Black manifolds are hard coat anodized inside and out to withstand tough marine environments. All stainless steel tail pipes are custom made to your exact specifications. We also offer several different internal mufflers systems for you to choose. Please call IMCO for further information.


PowerFlow Plus 85-Degree Risers (Polished)
Your Price:
$1,275.99

PowerFlow Plus 85-Degree Risers (Polished)

421-02-8075

Polished PowerFlow Plus 85-deg Risers

Polished PowerFlow Plus 85-deg Riser (Shown with PowerFlow Plus Manifold) (Sold in pairs)

IMCO's innovative patented cast aluminum manifolds and risers are designed with 33" internal runners for those 510 and bigger cubic inch, naturally aspirated, or blown big block Chevy motors. Fully water-jacketed with NO water passing though the flange area of the manifold or riser pipe. Manifold has 2 1⁄4" primary runners they are equal to any tubular header on the market today. Dyno results have proven that PowerFlow Plus out performs most headers in torque, rpm, horsepower, and most of all longevity. Risers are available in three different configurations, three different heights, and two finishes Polished or Black. Black manifolds are hard coat anodized inside and out to withstand tough marine environments. All stainless steel tail pipes are custom made to your exact specifications. We also offer several different internal mufflers systems for you to choose. Please call IMCO for further information.


PowerFlow Plus 90-Degree Riser (Black)
Your Price:
$1,123.99

PowerFlow Plus 90-Degree Riser (Black)

421-02-8077

Black PowerFlow Plus 90-deg Risers

Black PowerFlow Plus 90-deg Riser (Sold in pairs)

IMCO's innovative patented cast aluminum manifolds and risers are designed with 15" internal runners for those 510 and bigger cubic inch, naturally aspirated, or blown big block Chevy motors. Fully water-jacketed with NO water passing though the flange area of the manifold or riser pipe. Manifold has 2 1⁄4" primary runners they are equal to any tubular header on the market today. Dyno results have proven that PowerFlow Plus out performs most headers in torque, rpm, horsepower, and most of all longevity. Risers are available in three different configurations, three different heights, and two finishes Polished or Black. Black manifolds are hard coat anodized inside and out to withstand tough marine environments. All stainless steel tail pipes are custom made to your exact specifications. We also offer several different internal mufflers systems for you to choose. Please call IMCO for further information.


PowerFlow Plus 90-Degree Risers (Polished)
Your Price:
$1,075.99

PowerFlow Plus 90-Degree Risers (Polished)

421-02-8079

Polished PowerFlow Plus 90-deg Risers

Polished PowerFlow Plus 90-deg Riser (Shown with PowerFlow Plus Manifolds) (Sold in pairs)

IMCO's innovative patented cast aluminum manifolds and risers are designed with 15" internal runners for those 510 and bigger cubic inch, naturally aspirated, or blown big block Chevy motors. Fully water-jacketed with NO water passing though the flange area of the manifold or riser pipe. Manifold has 2 1⁄4" primary runners they are equal to any tubular header on the market today. Dyno results have proven that PowerFlow Plus out performs most headers in torque, rpm, horsepower, and most of all longevity. Risers are available in three different configurations, three different heights, and two finishes Polished or Black. Black manifolds are hard coat anodized inside and out to withstand tough marine environments. All stainless steel tail pipes are custom made to your exact specifications. We also offer several different internal mufflers systems for you to choose. Please call IMCO for further information.


Small Block Stainless Steel "A" Risers 3"
Your Price:
$1,165.99

Small Block Stainless Steel "A" Risers 3"

421-02-6020

Small Block Stainless Steel "A" Risers 3"

Small Block 3" Stainless steel "A" risers are designed for stock location Mercruiser Bravo exhaust with 3" riser block between manifold & Riser. tip locations should be 3" higher then stock. 3/4"npt fitting is used on front of pipe for thermostat housing that have (4) 1" hoses water to go to exhaust manifolds if needed click on (ADD BUNG). Shift bracket, ECM, or EFI brackets available as bolt on or welded to the risers.To order see PowerFlow Accessories or Related Products. (Sold in pairs)


Small Block Stainless Steel "A" Risers 6"
Your Price:
$1,230.99

Small Block Stainless Steel "A" Risers 6"

421-02-6021

Small Block Stainless Steel "A" Risers 6"

Small Block 6" Stainless steel "A" risers are designed for stock location Mercruiser Bravo exhaust with 6" riser block between manifold & Riser. tip locations should be 6" higher then stock. 3/4"npt fitting is used on front of pipe for thermostat housing that have (4) 1" hoses water to go to exhaust manifolds if needed click on (ADD BUNG). Shift bracket, ECM, or EFI brackets available as bolt on or welded to the risers.To order see PowerFlow Accessories or Related Products. (Sold in pairs)


Small Block Stainless Steel "S" Pipe
Your Price:
$1,659.99

Small Block Stainless Steel "S" Pipe

421-02-6028

Small Block Stainless Steel "S" Pipe

SMALL BLOCK std. Stainless steel "S" pipe is unique in many ways. These pipes will fit many pre-existing port locations That are about crankshaft center line, and is widely used with swim step applications as well as V-Drives and Jet boats.the lower elbow is adjustable up & down with a 4" exhaust tip hose contention.

3/4"npt fitting is used on front of pipe for thermostat housing that have (4) 1" hoses water to go to exhaust manifolds if needed click on (ADD BUNG). Shift bracket, ECM, or EFI brackets available as bolt on or welded to the risers. To order see PowerFlow Accessories or Related Products.


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