Exhaust Housing – Mercury for 3.0L V6 motors

Exhaust Housing designed for Outboards

Without modification to the engine, this simple, after-market add-on is designed to relieve back pressure on the engine, and results in more efficient low-end throttle response, a better tuned engine and increase fuel economy.

The unit comes complete with two removable plugs and four screws, so the casting can be installed on the back of your motor.

By removing two plugs the unit will allow exhaust which normally travels through the propeller to escape above the water line, and consequently this results in your engine breathing and performing better. Replace the plugs in the unit and exhaust will travel through the prop again.

Requires drilling into midsection.

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Plastic covers for Bob’s Machine Mercury Velocity Stacks.

Set of 3.

Holds tightly in place.

Rated for 145* F

For use during storage or work, remove before running motor.

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Exhaust Housing – Mercury
* EH-M MERCURY EXHAUST HOUSING – 2.O L,2.4L,2.5L ONLY

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Exhaust Housing – OMC
* EH-Y Yamaha EXHAUST HOUSING – 2.6L motors

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Constructed of a one-piece Almag casting, and machined and drilled for application for the Mercury V-6 engines, the tuner is designed to improve top end performance and allow your engine to breathe better, similar to what custom headers accomplish for an automobile engine. Fits : 2.0/2.4/2.5L

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Yamaha Tuner – fits all v76/carbureted/EFI/HPDI 3.1 and 3.3 liter Yamaha motors 1997-present

Increase performance of your motor with this bolt on Tuner!  Similar to a set of headers on a car!

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Velocity Stacks (Mercury 2.0, 2.4 & 2.5L blocks)

Increase air flow and performance, the air straightening effect created by the radics of the Venturi reduces turbulence (fogging) and improves air flow by approx. 10 C.F.M.

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