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I'm curious and interested in this... I currently have a 2012 535i xdrive.
Got a few questions:
What downpipes do you recommend for stg2 tune?
Will it make sense to go for a catted downpipes? Is it worth the cost/benefit in your opinion?
NYS inspection requires I think a minimum of 2 incomplete sensor. Will your cat delete coding will throw an incomplete on the monitor (essentially make it 3 and won't pass nys inspection)?
Do you modify the throttle response on your tune?
Thanks!
Last edited by M5Beast_NYC; 03-14-2016 at 10:36 AM..
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