AA's track pipe

[m3f_SIDEWAYS_78bada9b0e]

Is anyone running this exhaust? Since this track pipe replaces the factory catalysts (and the corresponding O2 sensors/bungs), wouldn't it set off the Check Engine light and cause the car to run all wacked?? And what would you do with the O2 senors/wires? just leave them danging?



http://www.roadfly.org/bmw/gallery/photos/photos-07-2002/9978.jpg

[m3f_PurpleM3Pursuit]

with the OBDII u put in dummy sensors... the front sensors are the only ones that need to read in all reality.. no CEL.. and the dummies i believe plug into the original wiring..

[m3f_SG_M3_d1201712b5]

Waste of money.



Purple is correct, the o2 sims plug in and replace the old o2 sensors.

[m3f_SIDEWAYS_78bada9b0e]

Waste of money.



Purple is correct, the o2 sims plug in and replace the old o2 sensors.



Why a waste? You don't think it's worth the power gains? I would think dropping the cats would greatly increase HP. :hmm:

[m3f_SG_M3_d1201712b5]

Its around 5 rwhp, and tq loss.



The 96+ cats/mid pipes flow very well.

[m3f_95blkbimm3_9842002abc]

i've got them on my '95 and love it, not a whole lot in the power dept. but it sounds alot louder, in a good way, and its got a great smell! lol

[m3f_White1995M3]

I dont have the AA but have a flange with the O2 in it and custum ran a 2 1/2 in pipe straight threw one high flow cat and into a borla exhaust. it is a little loud but I felt a change in power. That might have been due to a bad set of cats but for a total of $500 it seems worth it.