I have an '06 S281 Saleen. I just put C&L CAI, got a custom dyno tune with an SCT tuner, and put in 4.10 gears. Next I want to do long tube headers and x pipe, cats or not cats is yet to be decided (probably none). I'm not sure what brand I should go with. I was looking into Kooks and Bassani, kind of leaning toward the Bassani. Also, should I get a single blade throttle body? One mechanic says yes the other no. And if so what brand should I go with?