I definately want a downpipe with either an oem cat downpipe or with a hi-flo cat. The only downpipe i know that has a hi-flo cat is the mrt. what other brands are out there with a cat? and are there any with a cat and a divorced wastegate?

 

I love my Vishnu signature series exhaust. Divorced wastegate with a diverter and a cat.

Are you straight edge?

xp@x

 

The APS Turbo back has a seperated/divorced discharge housing, it dumps into a Hi-Flow cat. These two peices would be considered the down pipe. I dont think that you can order them separately from the system. I have the system and I love it. No fit problems, no leaks or rattles, not excessively loud, and makes very noticable torque and hp gains especially from 2500 to 3500 rpm.

 

ultimate racing has a high-flow cat option. last i checked they're build using Carsound cats!