Adding high flow cats to off-road prochamber
#21
Bullitt Member
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I've thought about doing that at one time but some people reported how quiet the prochamber is with a stock catted mid-pipe. That's why I want to add high flow cats instead.
#22
THE RED FLASH ------ Master-Moderator
And from my understanding the OEM cats are pretty efficient for a stock exhaust anyhow..
Last edited by m05fastbackGT; 4/13/16 at 09:29 PM.
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Joeywhat
Suspension, Brakes, and Tire Tech
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4/16/16 11:33 AM