I just gutted my exhaust headers . I will create a thread on how to do it etc.
It was easy and I would say it's a must do mod on ST .
Why spend $300 on Arrows when stock ones are stainless (the part where cat sits is not ) and weight the same as Arrows when you remove the cat . Actually I think stockers work even better because the cavity where cat was now acts like a little expansion chamber for the gas making the gas flow even better .
I just did a short 2 hour ride to test it and all I can say is wow , what a difference !!!
Engine now it's smoother , way smoother , runs cooler . Feels like it spins so much free'er and faster now through out all the rpm range .
I still have a choked off stock can , but I can only imagine how nice it will be when I will get some good aftermarket .
I'm not sure about power gains and torque gains , can't be that much imo , but removing that cat just makes your engine sing , completely different feel to it .