View Single Post
      11-22-2021, 01:54 PM   #7
Dawgz
2022 M4 Comp Xdrive
1012
Rep
1,532
Posts

Drives: 2022 M4 Comp Xdrive
Join Date: Feb 2019
Location: USA

iTrader: (0)

Quote:
Originally Posted by TTV8M View Post
definitely do the downpipes only if your state doesn't require emissions inspection or rock out without a sticker (or buy one).

i found o2 extenders with mini cats on it from fabspeed.com (very exciting)
https://www.fabspeed.com/fabspeed-un...nverters-pair/

ill probably get DP, these o2 extenders and their exhaust system once im closer to re-assembling the engine in a few months.


Let me know how those fab ones work ..I've tried everything else even electronic ones and they didn't work.
Appreciate 0