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      03-22-2014, 09:45 AM   #3
Delnari's Avatar

Drives: 2014 MG F22 Auto
Join Date: Mar 2010
Location: Alexandria, VA

iTrader: (2)

Really impressed with the big numbers just for the boltons. Now I'm wondering how much more a less restricted exhaust (from the downpipe back) would give without the tune, say the M Performance exhaust for example?

Is the downpipe catted? Any engine codes so far from the change? Keep the thread going as you make more changes. Love to see how this works out and the different options you experiment with. I was thinking a JB4 stage one as a first mod to keep it simple without having to splice anything. Maybe a better air filter too. Need to keep the car as close to stock as possible given it's a lease.

Thanks again for the post!