View Single Post
      11-22-2012, 11:58 PM   #28
1slowbmw
Private First Class
1
Rep
113
Posts

 
Drives: BMW e90
Join Date: Nov 2012
Location: LI/Bronx

iTrader: (0)

Quote:
Originally Posted by kiwi29 View Post
Hmm.. I get what you mean now, is this meant to use only with catless headers/dp?
yea it tricks the car into thinking the cats are still there to prevent a CEL and failing emissions tests