i want to re insall my header .had to take of due to yearly car inspectons to get 09 sticker for plates .i stay in memphis and they are pretty strick about emissions down here but any who when i had the header on i had straight pipe no cat but had both o2 sensors . i didnt like the tin can sound and also when i got down on it it felt like it had no power and had a nasty vibration where the pipe came down from the header.i want to install a high flo cat so i wont have to take of every time to go thru inspection and also cut down on the sound.

 

ok...

sounds good.. i think its das but he says the stock cat is a high flowing cat as it is...