Tom - have you done any tunes for the JRSC BBK (non SVT)? If so, were you able to get any gains in power and/ or torque?

There is a little to gain but not much , If you do things like 3 inch Exh SVT header , TB , cam gears , Cams then it would be worth a tune

Tom

I have a OBX header, magnaflow exhaust ( 2.5 I think) bosal flex. This summer Ill be porting the stock TB and adding a K&N flat panel filter.