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Custom Marine (CMI)

Replacement O-Ring for Flex Flare Tailpipe Flange 650-44204J
Your Price:
$9.99

Replacement O-Ring for Flex Flare Tailpipe Flange 650-44204J

625-1249S

Replacement O-Ring for Flex Flare Tailpipe Flange 650-44204J


Rope Seal Clamp Assembly Kit
Your Price:
$139.99

Rope Seal Clamp Assembly Kit

650-41160

Rope Seal Clamp Assembly Kit

Parts Included:
  • (1) Jumper Hose 1" x 6"
  • (2) Stainless Steel Hose Clamp #14
  • (1) V-Band Clamp for Standard Rope Seal
  • (1) 1/4-20 x 3.5" Hex Screw and Nut
  • (1) Rope Seal, High Temp
  • (1) Bridge Spacer, for 4" ID Tailpipe

Shift Bracket for CMI Gen-X and Hardin Hurricane, Seaward 525 / 700 Exhaust
Your Price:
$129.99

Shift Bracket for CMI Gen-X and Hardin Hurricane, Seaward 525 / 700 Exhaust

650-28235P

Shift Bracket for CMI Gen-X and Hardin Hurricane, Seaward 525 / 700 Exhaust

This is a bracket only for installing yourself on compatible headers.


Small Block Chevy E-Top Headers - Satin

Starting From:
$6,800.99

This Part has options, please click the button below to order.

Small Block Chevy E-Top Headers - Polished

MULTIPLE PART NUMBER OPTIONS. CLICK PART OPTIONS FOR MORE INFO ->

LT / Small Block Chevy E-Top Headers - Polished

CMI Small Block Elbow Top headers are designed for small block LT engine builders and stern drive manufacturers who want to optimize performance of small marinized engines prefer CMI Elbow Top headers for their 450 HP and above engines. They feature large 1 7/8” primaries. CMI E-Top systems offer separated exhaust passages with long individual exhaust tube runners to minimize cylinder to cylinder influence and improve exhaust gas scavenging, which allows the engine to breathe freely and deliver peak performance power. Each header features a permanently attached, non-adjustable exhaust tailpipe configured to meet precise specifications for standard transom layouts and placement of thru-hull exhaust tips. This header kit comes complete with our upgraded stainless steel water distribution tube, cooling water bypass couplings installed on the collector elbow, by-pass hose fittings, attaching cap screws, exhaust port gaskets, hose clamps and cooling water inlet fittings needed for most installations.

ALL CMI HEADERS ARE MADE TO ORDER AND SHIP FROM THE FACTORY IN 3-4 WEEKS

Small Block Chevy E-Top Headers - Satin

Starting From:
$5,449.99

This Part has options, please click the button below to order.

Small Block Chevy E-Top Mercury Replacement Headers - Polished

MULTIPLE PART NUMBER OPTIONS. CLICK PART OPTIONS FOR MORE INFO ->

LT / Small Block Chevy E-Top Headers - Polished

Works as stock Mercury replacement or for most Stern Drives and Jet boats. 4" Hose connection. Made from 316L Stainless Steel. Bolts directly in the existing location of your stock manifold.

ALL CMI HEADERS ARE MADE TO ORDER AND SHIP FROM THE FACTORY IN 3-4 WEEKS

Small Block Chevy E-Top Headers - Satin

Starting From:
$5,099.99

This Part has options, please click the button below to order.

Small Block Chevy E-Top Mercury Replacement Headers - Satin

MULTIPLE PART NUMBER OPTIONS. CLICK PART OPTIONS FOR MORE INFO ->

LT / Small Block Chevy E-Top Headers - Satin

Works as stock Mercury replacement or for most Stern Drives and Jet boats. 4" Hose connection. Made from 316L Stainless Steel. Bolts directly in the existing location of your stock manifolds. This is a single engine set and will directly replace both manifolds.

ALL CMI HEADERS ARE MADE TO ORDER AND SHIP FROM THE FACTORY IN 3-4 WEEKS

Sport Tube/Sweeper Clamp Kit
Your Price:
$109.99

Sport Tube/Sweeper Clamp Kit

650-36270

Sport Tube/Sweeper Clamp Kit

This Kit includes:
  • (1) Jumper Hose 1.125" ID, 180 Degree
  • (2) Stainless Steel Hose Clamp #16
  • (1) Sweeper V-Band Clamp
  • (1) Sweeper Tail Gasket

Stainless Steel Distributon Tube Kit for Big Tubes
Your Price:
$1,733.99

Stainless Steel Distributon Tube Kit for Big Tubes

650-41440

Stainless Steel Distributon Tube Kit for Big Tubes


Standard Rope Seal
Your Price:
$27.99

Standard Rope Seal

650-50340

Standard Rope Seal

Rope Seal for CMI Headers, sold each.

Width is 1/2" and Length is 14 1/2"

1/4-20 x 3.5 T-Bolt
Your Price:
$16.99

1/4-28 x 3.5 T-Bolt

650-38030

1/4-28 x 3.5 T-Bolt


115 Deg. Jumper Hose
Your Price:
$17.99

115 Deg. Jumper Hose

650-32040

115 Deg. Jumper Hose


180 Deg. Jumper Hose
Your Price:
$26.99

180 Deg. Jumper Hose - 3/4"

650-32050

180 Deg. Jumper Hose

I.I 3/4"


180 Deg. Jumper Hose Big Tube, 1-3/8" I.D.
Your Price:
$23.99

180 Deg. Jumper Hose Big Tube, 1-3/8" I.D.

650-32200

180 Deg. Jumper Hose Big Tube, 1-3/8" I.D. - 4-5/8" Center to Center


180 Deg. Jumper Hose, 1-1/8" I.D.
Your Price:
$23.99

180 Deg. Jumper Hose, 1-1/8" I.D.

650-32100

180 Deg. Jumper Hose, 1-1/8" I.D. - 3-1/4" Center to Center


90 Deg. Hose for Distribution Tube
Your Price:
$17.99

90 Deg. Hose for Distribution Tube

650-32030

90 Deg. Hose for Distribution Tube, 3/4" ID on both ends.


Adapter to Header 2-3/8" Big Tube Gasket
Your Price:
$39.99

Adapter to Header 2-3/8" Big Tube Gasket

650-34050

Adapter to Header 2-3/8" Big Tube Gasket

Sold Each


Adapter to Header Gasket for 2-1/8", 2-1/4" Big Tube
Your Price:
$39.99

Adapter to Header Gasket for 2-1/8", 2-1/4" Big Tube

650-34060

Adapter to Header Gasket for 2-1/8", 2-1/4" Big Tube

Sold Each


Big Tube Rope Seal, T-Bolt Clamp Kit
Your Price:
$79.99

Big Tube V-Band Clamp

650-36210

 

Big Tube V-Band Clamp / Rope seal type

 


Big Tube/Big E-Top Clamp, T-Bolt
Your Price:
$111.99

Big Tube/Big E-Top Clamp, T-Bolt

650-36150

Big Tube/Big E-Top Clamp, T-Bolt


Bridge Spacer
Your Price:
$72.99

Bridge Spacer

650-44120

Bridge Spacer


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