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Old 06-26-2018, 03:40 PM   #5
oslouie
 
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Drives: 2018 2SS M6 Redline
Join Date: Oct 2014
Location: United States
Posts: 431
Quote:
Originally Posted by pyroguy View Post
I'm surprised that you didn't notice much difference to begin with, but if anything my exhaust got LOUDER with my tune. It sounded even better which was good, but it definitely didn't quiet down. Enjoy your new setup!
Quote:
Originally Posted by go_go_gadget88 View Post
Same here! Granted I didn't do HFC with mine, but even with the stock catback at the time it was night and day difference when firing it back up. Didn't remotely sound like the same car!
Oh I definitely noticed it. I said I didn't think it would annoy the neighbors but after CEL came on, it got substantially louder. Wondering if anyone else noticed that when their CEL came on because of removing the rear o2 sensors?
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