Allows removal of restrictive sound suppression baffles in the exhaust.

This part requires no drilling of holes by utilizing the OEM outlet in the pump tunnel. No modification of OEM hoses is needed so the ski can be returned to stock. The billet anodized outlet fits directly into OEM location.

This is a must for any modified personal watercraft.

Our 2008+ Yamaha GP1800 FX, FZ & 2015+ VXR/VXS rear exhaust kit will eliminate any exhaust restriction, increase engine performance and give your Ski the “This means business look” with the Huge 3 inch Billet anodized outlet.

Molded Black silicone hose for easy install
Billet anodized black 3 inch exhaust outlet
Billet anodized block off plate
Eliminates restrictive sound suppression baffles
Silicone hose reduces exhaust resonance and droning
A must for High horsepower/ Race craft

Click here to download Instructions

Description:

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.

Features:

• Increased horsepower on modified 1.8L watercraft!
• Domed end caps
• Ribbed tube flanges for reliable coupler retention.
• Powder coasted top prevent corrosion
• Increase in HP on modified engines with significant torque gains as well

FITS:

All Yamaha 1.8L SVHO, SHO, and HO model skis.