Our BMS Racing Waterbox delivers increased horsepower and performance by reducing exhaust restriction and back pressure. This Waterbox will increase the low-end power and mid-range pull on your Yamaha 1.8L watercraft. High-strength aluminum construction will survive backfires and meltdowns. Powder coated to prevent corrosion. This is must for and modified 1.8L engine.
All Yamaha 1.8L SVHO, SHO, and HO model skis.
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