the kits you make a very nice. would you happen to make them for ep3??? by the way my vrs kit fit perfect in my ep3.If you are on a budget then get the kteller or vrs, but I can tell you from experience that their kits suck point blank.
The quality of bends and finishing is not near what I provide with my bends.
I recentlly installed a kteller pipe kit on a prelude and it was pure pain in the ass, because the bends were not on par and the swaged ends were so loose that it might as well not been there.
But its up to you on what you want to do.