I was going with bbk shorties but this thier a mustang shop that selling mac lt $450 should i get them are mac a good brand? and also what kind shorty x catted pipe will fit this headers i am in L.A C.A so we need catted x pipes

 

Mac is pretty good, i wouldnt go cheaper than Mac or BBK. i would get the ceramic coated ones whatever you get, it's worth the extra $$. i'm not sure what mid pipe would fit other than the mac prochamber, you can always have a shop weld in some cats for you.

 

Go for it, they are a great flowing header. Had them on my 98 Transam I once had and got huge gains from them. Get the ceramic if you can though.

 

go with the macs there good if not the bbk i would get