Uprated Rooster Racing Bypass Valve should you have lower operating

should you have lower operating vacuum due to modified camshafts fitted

as it is small and not very glamorous looking

The Rooster Racing uprated bypass valve is made by using new aftermarket units

This is known

This is individually done to each valve whether it is race

Uprated Rooster Racing Bypass Valve should you have lower operatingThe bypass valve is a very important part of the supercharger air flow system. It is a pretty much neglected part, as it is small and not very glamorous looking. However inside the valve is a rubber diaphragm and small conical spring that is vital to its function. Over time the spring weakens and when you change gear or simply close the throttle you may find a slight flutter or hesitation in the engine revs. This is known, in the R53 Mini world as Yo