If your lookin to go fast like that then screw the shorties...get a set of hooker LT's w/ a mufflex Y.

 

no it has to be shorties, my car is lowered, i daily drive it and theres a few locals with bashed in mufflex y pipes. that and i have to go through emmisions every two years so i want to be able to swap the cat in and out for the tests. i just want the best shory i can get, if theres like a 3 hp difference between the two then ill go with whats cheaper for me which is the macs.

 

so i did a search, and well they seem to recomend 1 3/4 for heads and cam cars and the macs 1 5/8 for bolt on cars, so would looking into rksport (copy of as&m) headers be worth it?

 

He's selling the MACs and getting SLPs?

 

yes but i want to know if i need 1 3/4 headers. he just wants to go bigger without going to longtubes. so should i go with rk sports or will the mac suffice?