Mar 1, 2010 #1 R Ryan Active member Joined May 14, 2008 Messages 1,984 Reaction score 0 Points 36 i just bought the 180 hp audi tt quattro. i already have an air filter and exhaust system on it. and im wondering can i just install a blow off valve to the stock piping or do i need to upgrade the piping before i can put on one?
i just bought the 180 hp audi tt quattro. i already have an air filter and exhaust system on it. and im wondering can i just install a blow off valve to the stock piping or do i need to upgrade the piping before i can put on one?