aight so plans r to get works exhale and rrm headers..i read on here somewhere while doin research that its not really necessary to change the mid pipe (between cat and AB) cuz it good stuff, so i scrapped my idea of goin with magnaflow...

SO leads me to my question...where do i even begin finding a high flow cat for 09 gts? are they just generic or what?

 

they are all universal.. ull just have to have someone cut and weld it on..

 

So the works exhale exhaust requires cutting to put it on?

 

nah hes talkin bout the hi-flow cat

what do u think about that combination tho..i suppose it might be loud but i have no worries bout that.. im more thinkin bout rattling

 

i read that if u dont put in a hi-flow cat w/ ur header it'll have a raspy noise