[dL_RL]

Anyone have the part number to our CAT? Or does anyone know which GM cat our cars use? I want to get a test pipe and having a hell of a time convincing any muffler shop to make me one even for $100 bucks+. If we can find out which cat our car uses I can easily find a test pipe for us to use easily. I think alot of us overlooked the possiblities of a test pipe. $40-$60 bucks and about 3-4hp and 1-3lbs of torque. Doesnt sound like much but for that little amount of money it's completely worth it and it's a easy install. I remember on my DSM 1st gen I got a test pipe for $20bucks I dyno'd a extra 5hp and 10lbs of torque! I dont think we will touch those gains because we are not turbocharged and do not rely on exiting exhaust gases to spool. But I think we will be satisfied if we can find the damn PN# or what cat we use! Thanks guys!

 

[Partsspec]

22719465 - 2004
15147065 - 2005
Good luck making a test pipe because of the 45 degree bend right after the cat. You'd be better off making a whole downpipe.

 

[dL_RL]

would you happen to know which truck shares the same cat with our RL? I remember our cat is the same used on some GM truck. I know that's vague but yeah....

 

[unknownsuperhero]

what is the difference from 04 to 05??

 

[Blu_Redline]

what is the difference from 04 to 05??

I can't believe that you can get away with no cat in the communist state of CA.

 

[dL_RL]

no you cant, but i'm going to do it anyway..anything for more zip!

 

[boosthard05]

if it means that much to you guys i can prolly talk to one of my fab buddies off of probetalk.com, im sure if a group buy was in order they would be down to hook it up

 

[dL_RL]

YES, talk to them. I'm sure alot of people will be interested..