hey man the LTs might not work with the x pipe if you have cats because the cats might be in the way. you might have to buy a new x pipe because the LTs are so long. i'm not sure what kind of hp you will get i don't wanna give you a false number but i think i'm safe to say 20 from LTs and catback and new x. maybe more though. someone please correct me if i'm wrong. thanks
I don't think they make long tubes for 2v. Mid-lengths is wat they have. As far a power gains for mid-lengths=13-17 hp and lots of torque gains. If u want max power then go with longtubes, either way, u will have to customize ur current x-pipe to fit.
BBK definitely makes long tubes for the 2v as does mac. Just check ebay, they are everywhere. If you are not getting mid lengths, you will have to either buy an hpipe or a catted mini x, which are pricey as hell.
For numbers, i have seen a vorteched 99+ 2v gain some 27rwhp with long tubes.
first of all holley owns hooker and flowtech , hooker has been making full lengths for a while , now flowtech has released there (knock offs) , same header different label , headers and they are dirt cheap and probably one of the best designs out there