Soo about a month ago i bought my slp headers yay finally got them and then i finally got them installed yay!!! Well not sooo much, Before that i had 3.4 pulley with supporting mods, and well i spent 1k on the headers and 400 on the install, it was a pita to install Well anyways for the money i spent on the headers and install i could of got a full size ic and droped the pulley for about the same price, oh and probably got it installed too and it would of been alot more of a gain in performance. I just dont think i really needed the headers at the stage i was at. Soo anyways if anybody is ever thinking about slp headers get a full size ic first because it's gonna cost about the same and theirs gonna be a better improvement in performance. Yea i lost a little lowend performance but topend i gained but i can't really feel any difference. It's just one of those times where you wanna use a time machine lol.