Subaru WRX Forum banner
wtf
1-1 of 1 Results
  1. Engine Modifications
    So I just installed a grimmspeed downpipe and flashed to stage two, fixed an exhaust leak yesterday and we disconnected a hose coming from the bypass valve to what seemed like the intake manifold. Now it sounds like a screeching monkey under boost and boost fluxuates and stays negative until...
1-1 of 1 Results
Top