Exhaust for max performance. - ZR-1 Net Registry Forums

XfireZ51 · 12-04-2012

Hib,

I got directed back to this thread from another "performance exhaust" thread and saw your question. The answer is that the Ultraflows have 2 straight thru paths. The Z06 flapper blocks one of the outlets but the exhaust still has a straight exit available unlike the Z06 muffs you describe. If you haven't seen this vid, it demonstrates the difference in tone between flapper open and closed with the Ultraflows.

Here's the Magnaflows originally on the car.

and now w Ultraflow Open/Closed flapper

12-04-2012	#10
XfireZ51 Join Date: May 2007 Location: Chicagoland, IL Posts: 9,678	Re: Exhaust for max performance. Hib, I got directed back to this thread from another "performance exhaust" thread and saw your question. The answer is that the Ultraflows have 2 straight thru paths. The Z06 flapper blocks one of the outlets but the exhaust still has a straight exit available unlike the Z06 muffs you describe. If you haven't seen this vid, it demonstrates the difference in tone between flapper open and closed with the Ultraflows. Here's the Magnaflows originally on the car. and now w Ultraflow Open/Closed flapper __________________ [SIGPIC][/SIGPIC]Former Membership Chairman Former ZR-1 Registry - BOD 1972 Corvette 4speed base Coupe SOLD long time ago 1984 Corvette Z-51/4+3 SOLD 1992 Corvette ZR-1 Aqua/Gray #474 SOLD 1992 Corvette ZR-1 Black Rose/Cognac #458 2014 Honda VFR Interceptor DX