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09-06-2017, 11:42 AM | #1 |
Private First Class
16
Rep 107
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What is diameter of oem exhaust?
I forgot. Need to add cats back to my Berk to pass emissions. Ideas? I have catless DP, but car passed emissions previously with secondary cats only.
Thanks, John
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2008 135i- Sparkling Graphite-Steptronic
ESS Stage 3 Flash-BMS Dual Cones-Helix Intercooler-AR Design Catless Downpipe-Berk DP Back Full Street Exhaust-AR Design Oil Cooler-AR Design Catch Can-OS Giken LSD-Bilstein B12 Kit-Whiteline rear sub-frame bushing inserts. 225-255 Direzza Z2. |
09-06-2017, 11:54 AM | #2 |
European Editor
10596
Rep 22,992
Posts |
See my post #21...
http://www.1addicts.com/forums/showthread.php?t=797160
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