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      04-30-2009, 09:03 AM   #68

Drives: E92
Join Date: Oct 2008
Location: TX

Posts: 85
iTrader: (0)

Any rasp associated with deletion of the secondary cats? With regards to replacing the section where the secondary cats are located, would resonators be a better choice than a straight pipe considering performance and sound? The last thing I would want would be my car to drone and rasp.

Also, who makes good software for the secondary cat deletion and how does it affect warranty?