guys i just install a brand new wastegate..
eh replica tial 38mm...
but no sound coming out from the wastegate at all..
there is no leaking in the piping or anyway else...
when i boost...0.9 no problem, boost...
been driving my r34 for 3 months now and the smoke from the hks exhaust has darken my rear bumper together with the tail light each time i drive long distance. the difference is so obvious as the left bumper which...