can anyone tell me the internal diameter of an hks downpipe please
the one with the turbo elbow included
and also what an extension kit is because i have been told i need this for the turbo elbow to fit and the downpipe to fit the standard cat
or if there is a better system than the hks with turbo elbow
thanks alot
chris
the one with the turbo elbow included
and also what an extension kit is because i have been told i need this for the turbo elbow to fit and the downpipe to fit the standard cat
or if there is a better system than the hks with turbo elbow
thanks alot
chris