I still have to drive my car everyday so idk about some of the things your guys are talking about. for me atleast its better to K.I.S.S ( keep it simple stupid). Racing seats, carbon fiber hood, alum heads, and i found a aftermarket starter thats VERY light (ill try and find the website link if anyone wants.) if your racing go ahead to trash your rear seat but if your thats just a lil much in my opinion. just sayin