Originally Posted by davsmith64
if u want to run 14psi u will need the ecu chipped,,
unless u run a bleed valve but i advise u NOT to do this as mixture and fuelling will fuck up along with you engine..
Agreed.. Bleed Valves are the cheap way to increase boost however they do not adjust the fueling as well which can make the engine run lean and detonate.
A properly setup car has no need for a bleed valve