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Suhb · 02-01-2018, 11:30 AM

I reinstalled my stock headers. Removed the Secondary Cats.

135i exhaust with Secondary Cats removed is very quiet. Performance Exhaust is going on today. I will post a video up soon of Stock Headers + Secondary Cat Delete + Resonator + PE Exhaust.

02-01-2018, 11:30 AM	#224
Suhb First Lieutenant 119 Rep 377 Posts Drives: 2010 128i Coupe 6-Speed Join Date: Dec 2012 Location: PA iTrader: (3)	I reinstalled my stock headers. Removed the Secondary Cats. 135i exhaust with Secondary Cats removed is very quiet. Performance Exhaust is going on today. I will post a video up soon of Stock Headers + Secondary Cat Delete + Resonator + PE Exhaust. __________________
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