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.
2.0, 2.4 & ,2.5 Liter Only
Fits all Yamaha V6 carbureted, EFI, HPDI and 3.1 & 3.3 liter ( '97 - current ).
Improves bottom-end, mid-range, and top-end.
Approximate HP increase, 7-12.
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Other boat engine accessories
