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Fred Flintstone · 11-12-2017, 09:14 PM

Going Open Flash UEL catless headers and Invida Q 300. Only question is cated or uncated resonated front pipe ??? Any more or less power or torque on cated or catless front pipe? How about sound level difference ??? Anyone else have this combo ???

11-12-2017, 09:14 PM	#1
Fred Flintstone Member Join Date: Oct 2014 Drives: 2015 FR-S Asphalt, racing stripes, Location: Texas Posts: 61 Thanks: 4 Thanked 2 Times in 2 Posts Mentioned: 0 Post(s)	Exhaust advice, ready for a change!!! Going Open Flash UEL catless headers and Invida Q 300. Only question is cated or uncated resonated front pipe ??? Any more or less power or torque on cated or catless front pipe? How about sound level difference ??? Anyone else have this combo ???