MACSBOOST Yamaha SVHO Blow Off Valve

$399.00 $259.99

  • Highest quality with Stainless Fasteners and clamps
  • Highest quality hose
  • Easiest install with Pre-assembled BOV and hoses.

In stock


Improve the reliability of your Yamaha WaveRunner FX, Cruiser, GP1800R, FZR, FZS SHO/SVHO supercharger by adding a MACSBOOST high performance blow off valve.  Fits all years 1.8 Supercharged engines.  This kit includes a custom silicone hose with a large bov port, with more flow than the competition on similar valves.  Our hose design is a true spline curve minimizing curvature and pressure drop with better than OEM fitment.

The Kit includes our exclusive heavy duty custom silicone coupler, thick wall silicone vacuum line, vacuum T, all stainless hose clamp, stainless circlip, gapless hose clamp for BOV port, high quality sequential style SSQV SQV BOV.  Our valves are made custom for us and are set to open quickly, but include a feature that allows the valve to bleed signal such that the valve is guaranteed to remain shut during steady state cruise or idle.  This means there is no tuning or adjustment needed and the valve always responds quickly and repeatedly to transients. The valve and adapter circlip come pre-assembled.    Easy 10 minute install: No removal of the manifold is required, no drilling or tapping.  Our kit comes with a pre-assembled T and connects to the map sensor.

The SVHO superchargers are known to shear gear teeth, fail clutches, twist supercharger shafts and destroy 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 MACSBOOST blow off valve is your best defense against premature damage.

The sequential design of the BOV allows for the fastest response while our exclusive large port ensures maximum flow.

QUALITY: Attention to detail is what makes MACSBOOST the best.  We use extra thick silicone vacuum tubing that needs no zip ties, Premium euroseal All stainless gapless hose clamps and barbed nylon hose tees.  Our valve assembly is also assembled with stainless bolts and nuts and now with a stainless circlip.  You won’t find this anywhere else!


Product Video


Additional information

Weight 3 lbs
Dimensions 8 × 8 × 8 in


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