removed the Forge ReCirc DumpValve from my 93 wrx and installed the forge vta dump valve. i used http://www.markuswarren.co.uk/index.asp?howto=installdumpvalve as a guide to install it. thing is the car seems to be running slower and when i get above 5000rpm in 2nd or 3rd sometimes the engine power cuts out like its hitting a rev limiter. not sure y the new dump valve is causing this problem.

Borich