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PR370z · 06-21-2010, 01:47 PM

Thinking about stripping out one of the two cats in the stock downpipe. Probably the second one, has anyone tried this? Looking for a little more HP and sound without the cost of a high flow cat. Any thoughts?

06-21-2010, 01:47 PM	#1 (permalink)
PR370z Base Member Join Date: Jun 2010 Location: Puerto Rico Posts: 108 Drives: 2008 BMW E60 M5 Rep Power: 14	Stock Cats Thinking about stripping out one of the two cats in the stock downpipe. Probably the second one, has anyone tried this? Looking for a little more HP and sound without the cost of a high flow cat. Any thoughts?