BMW 1 Series Coupe Forum / 1 Series Convertible Forum (1M / tii / 135i / 128i / Coupe / Cabrio / Hatchback) (BMW E82 E88 128i 130i 135i) - View Single Post - Whats Best for Exhaust sound? Sound Clips, Advice?

04mazdaspeed · 08-16-2017, 02:36 AM

If you get a tune, you don't need a dp fix. The mhd maps already tune the rear o2 out. You won't pass emissions but there's ways around that.

08-16-2017, 02:36 AM	#4
04mazdaspeed Private First Class 61 Rep 144 Posts Drives: 2011 135i DCT Join Date: May 2017 Location: Chicago, IL iTrader: (0)	If you get a tune, you don't need a dp fix. The mhd maps already tune the rear o2 out. You won't pass emissions but there's ways around that. __________________ 2011 135i DCT, 33k miles FBO on custom e30 tune
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