View Single Post
      03-11-2011, 05:38 PM   #370
Imperator's Avatar
Drives: 2010 E92 335i
Join Date: Mar 2010
Location: Plano, Texas

Posts: 1,129
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.
Imperator is offline   United_States
Reply With Quote