The for SVHO superchargers are known to shear gear teeth, fail clutches, twist supercharger shafts and your very expensive supercharger. Going from full boost to closed throttle causes the most stress on the shaft, gear and clutch. The BOV gives a safe place for the compressed air to dump and reduce the mechanical stress on the compressor and clutch assembly. The blow off valve is your best against premature clutch damage. QUALITY: Attention to detail is what makes the best. Our hose is CNC designed for a . We use silicone vacuum tubing that needs no zip ties, stainless style gapless hose clamp and barbed nylon hose tees. Our valve assembly is also assembled with a aircraft style stainless steel circlip. Easy 10 minute install: The valve and adapter circlip come pre-assembled. No removal of the manifold is required, no drilling or tapping. Our kit comes with a pre-assembled barbed T and connects to the map sensor. No Removal of the stock airbox. Fits all years 1.8 Waverunner Supercharged engines up through 2022 and on. Colour:Blue + Silver Material:aluminum Package Contents: 1 x Supercharger Blow Off Valve BOV Kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.