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2013 ZL1 #7860 · 07-28-2015, 04:33 PM

Can't comment on sound yet but I just swapped my entire exhaust system. 2" headers and full 3" exhaust with cats and 3" connections. The stock exhaust sounds great but the 3" looks like it flows a lot better and is much better quality.

07-28-2015, 04:33 PM	#7
2013 ZL1 #7860 Drives: 2013 ZL1 A6 #7860 Join Date: Apr 2014 Location: CO, USA Posts: 1,279	Can't comment on sound yet but I just swapped my entire exhaust system. 2" headers and full 3" exhaust with cats and 3" connections. The stock exhaust sounds great but the 3" looks like it flows a lot better and is much better quality.