Thread: N54 downpipes
View Single Post
      01-04-2013, 03:59 PM   #12
Spoolin' & droolin'
Colt's Avatar
Drives: 08 135i 6MT
Join Date: Jan 2012
Location: Maryland

Posts: 1,212
iTrader: (0)

Originally Posted by 135Pats View Post
Sure you can, you'd just need to swap out to the OE downpipes for testing...Granted that is neither cheap nor convinient, it would probably come down to labor costs in your country, and how often you have to pass emissions testing.

I was thinking of going the catted downpipe route and people haven't passed emissions this way either. So I said screw it, do my emissions before Feb 16th, install the catless DPs and not worry about it for 2 years.

OP, you have to remember that you aren't guaranteed to pass emissions with an aftermarket catted DP, possibility of still failing emissions
Originally Posted by Nate4641 View Post
looks like unicorn vomit.
Old| 2005 s2000: KPRO, Invidia q300 v4, PLM header, BERK 70mm HFC, Vortech v2 (3.6" Reichard Pulley), FMIC, ID 725cc (397whp/243tq @9psi), Tuned at Innovative Motorworks.
New| 2008 135i: PTF Tune, RB Turbos, ER CP, TiAL Q, BMS OCC, BMS DCI, AA 2.0 FMIC, VRSF 3" DPs, Berk Mids, CP-E Axleback, Robs' PCV.
Colt is offline   United_States
Reply With Quote