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      01-26-2013, 01:33 PM   #6
roadkillrob
Brigadier General
United_States
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Drives: 08 335i,16 X5 35i,12 C63 AMG
Join Date: Jul 2007
Location: Boston

iTrader: (15)

If you have catted downpipes, why do you need O2 sims - I have AR catted with all the O2 sensors installed and it passes OBDII smog check no prob.

Do you really mean you have catless downpipes?
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2008 E93 335i, MHD, HPF IC, Injen Intake, AR DPs, Xhp TCU Flash
2016 X5 M-sport 35i JB Stage 1
2013 Mercedes C63 AMG, ROW airboxes, power pipe, Eurocharged V6 Flame tune 540 HP