Hardin Marine

Computer Re-Calibration & Monitoring (ECU) - Supercharged Engines

Have you modified your stock Mercury EFI engine by adding high performance exhaust, a bigger cam, a high flow flame arrestor, or added a supercharger?

Hardin Marine can recalibrate your Mercury ECU (computer) to yield the very most of your engines power The ECU precisely controls fuel requirements, detonation control, idle speed and RPM limitations We have dyno-tested multiple combinations and know what works! Call us with your application requirements and we will lead you to maximum horsepower from you EFI engine Allow approximately 4-7 days turn around time.

***Results will vary depending on boat design, propping, atmospheric conditions, environment and drivers. We cannot guarantee speed or plane time increases with the many different applications. MPH and power increase % are helpful rules of thumbs and are in no way guaranteed.

Copperseal Exhaust Manifold Gaskets - Big Block Chevy Round Port- Sold in Pairs

Copperseal is the perfect for solving problems caused by uneven mating surfaces or warped flanges. Embossed raised seals fit perfectly to the exhaust ports. The resistance to high temperature and high pressure make the gaskets the ultimate choice for all applications. .04" thick.

Sold in Pairs

Copperseal Exhaust Manifold Gaskets - Big Block Chevy Square Port- Sold in Pairs

Copperseal is the perfect for solving problems caused by uneven mating surfaces or warped flanges. Embossed raised seals fit perfectly to the exhaust ports. The resistance to high temperature and high pressure make the gaskets the ultimate choice for all applications. .04" thick.

Sold in Pairs

Copperseal Exhaust Manifold Gaskets - Olds 350-455- Sold in Pairs

Copperseal is the perfect for solving problems caused by uneven mating surfaces or warped flanges. Embossed raised seals fit perfectly to the exhaust ports. The resistance to high temperature and high pressure make the gaskets the ultimate choice for all applications. .04" thick. Ports are 1.900" tall and 1.450" wide.

Sold in Pairs

Copperseal Exhaust Manifold Gaskets - Small Block Chevy Round Port - Sold in Pairs

Copperseal is the perfect for solving problems caused by uneven mating surfaces or warped flanges. Embossed raised seals fit perfectly to the exhaust ports. The resistance to high temperature and high pressure make the gaskets the ultimate choice for all applications. .04" thick.

Sold in Pairs

Copperseal Exhaust Manifold Gaskets - Small Block Chevy Square Port- Sold in Pairs

Copperseal is the perfect for solving problems caused by uneven mating surfaces or warped flanges. Embossed raised seals fit perfectly to the exhaust ports. The resistance to high temperature and high pressure make the gaskets the ultimate choice for all applications. .04" thick.

Sold in Pairs

Cotter Pin For Sea Strainer

Cover And Retainer Plate - Fits All Standard 3 Bolt Wheels. 2-3/4" Diameter, 1/2" Tall

Cover for Bellhousing Starter Hole, Raw Finsish. 4.12" bolt hole center to center. 5-1/4" Long, 3-3/4" Wide, 1/8" Height.

Y-Pipe E Cover Plate

This cover plate is used when you remove the Y-pipe assembly and need to cover the exhaust port that has been left exposed. These are stainless steel cover plates, not aluminum units. Designed to last a lifetime.

CP Performance Decal 5" Wide x 2" Tall

CP Performance Gift Certificate - Print Certificate

Plus, receive a FREE graphic t-shirt with any gift certificate purchase!

CP Performance gift certificates are available in any denomination. This certificate may be redeemed in store, online at cpperformance.com, or over the phone. Use of this CP Performance gift certificate constitutes acceptance of the certificate terms and conditions. This certificate contains value which may only be used to purchase goods (except for other certificates) at CP Performance. Present this certificate to an associate at time of purchase or enter number as printed on certificate at checkout and purchase amount will be deducted from certificate balance. Additional value may NOT be added to this certificate at any time. Certificate will NOT be replaced if certificate is lost, stolen, or destroyed. This certificate may NOT be redeemed for cash.

Used with three pins connectors to crimp everything together.

These showers distribute a continuous supply of water onto the upper section of the Bravo stern drive. Tests have continuously shown that the added cooling from the drive shower can double the service life and nearly double the bearing life of the out drive.

• Fits Alpha One, Alpha One Gen Two, Bravo One, Two and Three.
• Comes with full color illustrated installation instructions.
• Pick-up ports are adjustable up to 1-1/2 inches.
• With Mayfair Performance Shower/Cooler design you get more water flow and lower drive oil temperature.
• 3 times the water flow than other very popular shower cap designs.
• Has a 15-35 degree lower drive oil temp. Guaranteed or full refund.
• Available in Satin only.

• Custom designed crossover kit.
• Allows the use of a thermostat or a kit with no thermostat.
• Thermostat Housing has port for sender if desired

• 1" NPT Dual Inlet
• For Use with 1 or 2 Stage Sea Pump
• Includes #625-4382 high flow water inlet crossover in a dual inlet configuration.
• Extreme Series Power Steering Pump.
• Steering pump uses a short V-belt that is run off of a custom designed 2-groove sea pump pulley.
• Kit includes: a power steering pump, crossover with power steering mount, a dual groove sea pump pulley, the V-belt and mounting hardware.

• 1-1/4" Single Inlet Crossover Power Steering System.
• For Use with 1 or 2 Stage Sea Pump
• Includes #625-4372 high flow water inlet crossover in a dual inlet configuration.
• Extreme Series Power Steering Pump.
• Steering pump uses a short V-belt that is run off of a custom designed 2-groove sea pump pulley.
• Kit includes a power steering pump, crossover with power steering mount, a dual groove sea pump pulley, the V-belt and mounting hardware.

• Constructed of 316L Stainless Steel.
• 1" slip-on on the top of the crossover tube(can be used to bypass water to the thermostat housing).
• 1-1/4" slip-on connection inlet fitting.
• O-ring sealed, no gaskets required.
• Includes bolts.

Seaward Custom 8.2L Risers - Sold As A Pair, 11-3/8" tall

Limited stock available, custom height risers. If you are in the market for a Seaward 8.2L system talk to a salesman to see if these fit your application, as it may have considerable cost reductions over building new risers.

Custom Aluminum Fabricated Left Foot Rest Only

3-1/2" center to center on mounting holes, 13" overall length, 5-1/2" wide

Custom Aluminum Fabricated Right Foot Rest Only

If you are looking for something a little different and need a custom tip, then we have your answer! These popular angled end tips share the same great construction and gleaming finish as our standard tip but are custom made to various length styles and can accommodate reducers and angled flanges. These tips include flaps and will accept our popular slip-in silencers. Sold Each.

NOTICE: TWO OF THE CUSTOM CONFIGURATIONS ON HERE ARE NORMAL PRODUCTION ITEMS AVAILABLE AT LOWER COST AND SHOULD NOT BE ORDERED FROM THIS PAGE:

IF YOU DO NOT SEE THE OPTIONS YOU NEED IN THE DROP DOWN MENUS BELOW CONTACT US AND PROVIDE A SKETCH OF WHAT YOU ARE LOOKING FOR AND WE WILL PROVIDE A QUOTE!

CUSTOM TIPS TAKE 7-10 BUSINESS DAYS TO BUILD AND ARE QUOTE ONLY.