What kind of gain should I expect from replacing my cats with an off road x-pipe on my 07? More specifically a Kooks x-pipe.

 

about 10hp and a loud new sound

 

I have always wanted to do that too.. Are there any laws that state they have to be on a vehicle? I am just curious cause my friend did it to his Corvette and apparently there is no law that he has to have them on. He lives in Alberta, Canada. I live in Saskatchewan, Canada.

 

i dont agree theres no way your gaining 10hp
1-2 hp with an o/r h maybe 5hp with an o/r x

 

LTs and O/R Prochamber and I gained 15-20 maybe...

 

i belive that but in the first post he didnt say anything about long tubes

 

I do already have some Kooks LT on.

 

sorry bout the cunfusion but whether believeable or not brenspeed advertises if tuned for it 11hp but tuning does alot and i kinda left that out but if you get an o/r pipe youll need either the MIL eliminators or a tuner to turn off the o2 sensors but with the longtubes i would definitely LT and o/r at least 15 but i would expect more even