View Single Post
      01-07-2013, 01:39 PM   #10
Jeff@TopGearSolutions
BimmerPost Supporting Vendor
Jeff@TopGearSolutions's Avatar
United_States
1476
Rep
38,564
Posts


Drives: C6 Z06, 09 335i, 10 335xi
Join Date: Dec 2008
Location: www.TopGearSolutions.com

iTrader: (36)

Looks like a perforated core and fiberglass or something. That's why most cat back's don't add too much power, it's already a pretty good exhaust from the factory.

Without that packing it might sound like a tin can though. Have you driven it?
__________________
|Facebook Discounts||Evolution Racewerks||Active Autowerke||ETS| |Burger Tuning| |Cobb| |Mishimoto||VRSF| |AWE| |Wagner|

|New HPB 240W H8 Angel Eyes | |VTT| |KW| |Spec| |ST Coilovers| |Koni| |Bilstein| |Borla| |Magnaflow| |AFE| |Shifteck| |Injen|Coding / PPK / Alpina