Ss 12.9
Awesome I don't think they are losing power, they are just not gaining anything after spending like 350 dollars on the exhaust system!! Which is very sad from a company like Flowmaster. But there 1 Chanber race mufflers flow great and sound great with TD, I am gtting those in place of my bullets
Dan
Dan
I am just curious. The person who had my car before me put a flowmaster catback on it. I am installing LT/ORY/Cutout to bypass that at the track though. I just wanted to know if anyone has tested ET/MPH with flowmaster catback vs another brand.
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