My Vixer fitted with the Milltek Race System......

[M90VXR]

i got told that there adjustable sound, if you wind the bolt out at the top where the vacuum hose goes then it makes it louder

This takes the tension out the spring which produces a longer dumping sound but releases under low dump and if you do motorway driving alot, the dump valve will open and loose pressure when your driving. This then puts your car into limp mode and shuts down all boost.

Therefore, I wouldn't be doing that!

[Mikie]

This takes the tension out the spring which produces a longer dumping sound but releases under low dump and if you do motorway driving alot, the dump valve will open and loose pressure when your driving. This then puts your car into limp mode and shuts down all boost.

Therefore, I wouldn't be doing that!

exactly what mine was doing before but with the original spring fitted, so i had it changed to a stiffer one. its quite whistle driving normal but on high end its loud!!!

[atkin92]

i love it!

[farrell123]

exactly what mine was doing before but with the original spring fitted, so i had it changed to a stiffer one. its quite whistle driving normal but on high end its loud!!!

i had this with mine when on a motorway so i just took it of how do i get a hold of the stiffer spring?

[farrell123]

m90 vxr i was out and about at work doing a delivery and seen your car must of been where you live