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Daniel R · 02-02-2010, 12:10 AM

Most likely heat shields on the cats.

Unless you are emissions tested, do what a few of us have done and install bypass pipes to delete the cats. The sound is better, weight is reduced, and power is (slightly) increased.

02-02-2010, 12:10 AM	#7
Daniel R Registered User Join Date: Apr 2009 Location: Perth, Australia Posts: 165	Most likely heat shields on the cats. Unless you are emissions tested, do what a few of us have done and install bypass pipes to delete the cats. The sound is better, weight is reduced, and power is (slightly) increased.