well i finally decided to do it. Didn't have to work today so i got up and cut the rear cats outta my 04. It took me a lil while and a few blades to take em out. the biggest pain was getting the replacement pipe in. i think i finally have the sound i want. I noticed that it dropped my idle speed down to about 500 rpm's and was wondering if anyone else had this happen? thanks

 

yep has happened to me and alot of other people i know, since it flows a little better the motor doesnt have to rev as high