I'm especially curious if I can expect a HP gain and/or would the Wett chip need to be reprogrammed. Thought I might ask here first before talking with Kelly at Wetteraurer.
Thanks for any input !

Joey

99.5 1.8TQM Wett

you buy it from. I also don't believe the chips are programmed any differently for a freer flowing exhaust. Maybe when you get to Stage III. If I'm not correct, then I need to get mine updated.