Ok I just got a 2.5 ATR exhaust and I HAD an ORP on it and it was like CRAZY loud. Well I have now put the stock CAT back on but now its a lil quiet, which leads me to my question. I am wanting to prolly get the RT CAT but is it worth frickin 320? I mean what kinds of gains does it give? Is it enough to warrant spending that type of money? Thanks in advance for the help. I have tried to search but couldnt find anything. Thanks again.