Hey guys, I own a rx7 and we have a 3 mod rule before our ecu needs to be upgraded. I am looking to buy a b6 S4 and was wondering how many mods are allowed until ecu needs to be be upgraded or tuned?

Will I be safe with straight pipe and intake or will I need to chip it?

 

You should be fine I believe.

 

you should be fine cause even with the chip on a b6 s4 adds what 20hp?? i know that it is not much at ALL...anyone know exactly what it is??