these are the 2 i came down to. i like the slp longtubes and seen a few articles on ls1 F-bodys that slp headers were installed on. i also looked at kooks. kooks salesman says that i gain get atleast 35rwhp. is that true or not? and which would you take the whole slp longtube set up or kooks?

 

I've heard more good things about the kooks than than I have the SLP... on the other hand, their Y-pipe is supposedly a little funky so you might want to look into another one.

 

was that slp y-pipe or kooks y-pipe?

 

The SLP Y pipe is pretty good, but the headers are not as good as the Kooks, get the Kooks don't make teh same mistake I did and get the SLP's

 

im still doin the research though. but have you heard of tpis headers