Quote:
Originally Posted by Game
Personally at most I'd just change the midpipe based on what I've heard from the G8x crowd. Don't need much more than stock.
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If the exhaust is anything like what is on the M3/4, it will breathe much better with a full upgrade (cat back). Downpipe only if tuning..
As for tune, if you want to pay the price, take the time to be down for a couple weeks (to ship the ecu to Finland) and risk the warranty, these babies can be real monsters.