Fancy Tech: How to Get Rid of Exhaust Drone, works great!

ZontheRocks

Why not go with high flow catalytic test pipes? Berk, Fast Intentions, AAM, Kinetix, Z1, etc.?

I am trying to understand your requirement for no cats in the stock placement (down/test pipe), but cats needed somewhere else downstream in the exhaust.

TBatt

High flow cats are just cats that are less restrictive, not made for supercharged engines which produce not only more exhaust gasses but at a much higher temperature. When I talked to Tony at FI he said that what they had found is that going to a HD high flow cat (the MILSPEC) and moving it further away from the stock location makes for a very reliable setup.

So, I followed his recommendation and went with the test pipes (removes the stock cats) and installed new lead pipes with the MILSPEC cats much further downstream of the exhaust but still before the H pipe section. All I can say is that it works. Loud, but it works.

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