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...
Isit all EVO got a sound like "KOK" when revv engine and then change gear ?? last time i sit beside a evo 7..the car supplier drive it..when it change gear it comes out a "KOK" sound..it say all evo is like...