View Single Post
      08-10-2021, 12:08 PM   #7
drwankel
Major
drwankel's Avatar
1049
Rep
1,050
Posts

Drives: 2012 E92 M3 ZCP, 2021 M340i
Join Date: Feb 2016
Location: Bothell, WA

iTrader: (0)

Quote:
Originally Posted by mchang View Post
Is it necessary to code out the cat delete?
If you dont want a CEL, you will need a tune. You can run the stock tune with this no problem, you'll just have a CEL permanently illuminated. No degradation with performance or fuel economy.
Appreciate 0