So i want the car to be HELLA loud for this weekend... I know there are 4 o2 sensors so i figure i cap the 2 after the cat to make it work right... but what would you all suggest... I want it to sound sicker than a F360... I know thats gonna be a challenge...but i figure i can do it...

 

Exhaust cutout's

 

whats that? that just cutting out the cat?

 

I take it your coming to the CHP run and your trying to look cooler.

 

maybe just want it to be LOUD

 

No need there will be plenty of insanely loud cars there, i hardly doubt they will notice you or me with our 996tt's lol.

 

This explains the exhaust cutout! It's similar to what they use in the 9ff and Kreissieg exhaust with an electronic valve that opens and closes! Open it dumps straight out after the header's basically

http://www.installuniversity.com/ins...xplanation.htm

 

I run straight pipes, car sounds and runs awesome. But if you dont have the 100 cell cats with the pipe you will get a CEL unless you flash your ECU.
You can go with Fabspeed 100 cell cats and straight pipes with out any reprograming. I did that initially but when the car was flashed it took away the need for the cats and then I went to straight pipes from the turbo out. FVD makes these pipes and accepts your factory tips.