View Single Post
      03-11-2011, 06:38 PM   #370
Imperator
Major
Imperator's Avatar
United_States
21
Rep
1,164
Posts

Drives: 2010 E92 335i
Join Date: Mar 2010
Location: Plano, Texas

iTrader: (7)

Um, I'm pretty sure the stock 335i exhaust has a crossover in the system just after the secondary cats, upstream from the mufflers. There's another crossover built into the mufflers to accommodate the bypass valve in the left muffler outlet.