Hey Zach, can you email me the contact for the hogan guy? I may be interested in a catted dp. I live in Ontario and we do have e testing so a cat less one wouldn't do any good. Do you think the zzp performance guys make a decent one? I did find that on eBay.

Another question for you. In another thread you mentioned a code being triggered with your cat less down pipe (expected with no cat right?), but will this still happen with a catted version? In theory it shouldn't right?

Thanks
Matt
Slugger088@hotmail

 

Most times the aftermarket cat flows better, which makes the car think something is wrong and will throw a light anyway.

 

His ebay is belair427. He has the catted do on ebay. I can't speak from experience about the zzp one. It seems like most ls4 guys go with the hogan.

Goo chance you will get the code still with a hi flow cat like chibi said

 

when i put a high flow cat on my 01 GTP(when i had it) i never got any codes every.