Mercury 150 Hp XR2 XR4 Magnum Marathon 1978-1990 5432022-6616991, 0A904645-0C239552 Boyesen Power Reed Kit 265V

150 Hp XR2 XR4 Magnum Marathon (vertical reed blocks) Boyesen Power Reed Kit Compatible with Mercury 265V Serial number: 5432022-6616991, 0A904645-0C239552 Year: 1978-1990 Please be advised that the reeds pictures are generic pictures and does not reflect actual set of reeds Product Description Boyesen Power Reeds are direct replacement for the 150 Hp, XR2, XR4, Magnum, Marathon (vertical reed blocks) Contents: Full set for all cages. REVOLUTIONARY PERFORMANCE Boyesen's patented dual-stage design incorporates a specially shaped top reed and a ported bottom reed. The top reed is lightweight and resilient for crisp throttle response at partial throttle or low RPMs. The stiffer, bottom reed is ported to provide maximum flow and horsepower at higher RPMs. More valves equals more power by creating: More Air Flow. The dual-stage design allows you to replace your stock reed stop with a Rev-Plate which permits the reeds to open freely and function efficiently. More Air Velocity. The multi-port feature of the bottom reed creates more channels for the charge, delivering increased velocity to the intake ports. More Overall Power. Dual-stage reeds work in unison to perform efficiently throughout the entire powerband. The difference in stiffness between the top reed and the bottom reed allow the reeds to respond quickly and accurately to changes in engine pressure. This translates into quicker acceleration, crisper throttle response and increased horsepower throughout the powerband.

• Quicker acceleration for that all-important holeshot.
• Longer life - Boyesen Power Reeds outlast all other aftermarket reeds.
• PWC Engine brings Higher Quality for an awesome price!
• More horsepower throughout the powerband for guaranteed performance.
• Improved engine efficiency and fuel economy for the long distance user.