I fitted one of these last week myself.
I initially noticed a huge difference all round!
I do a lot of open road driving however, and would continually get boost cut around 4000rpm in 4th while overtaking (yes, this equals about 120kph). Now I've had to wind the valve back so far to overcome this issue I am no longer sure if it has any positive affect over the stock standard setup..
I initially noticed a huge difference all round!
I do a lot of open road driving however, and would continually get boost cut around 4000rpm in 4th while overtaking (yes, this equals about 120kph). Now I've had to wind the valve back so far to overcome this issue I am no longer sure if it has any positive affect over the stock standard setup..