That is what a spyder shaft is as well i belive,if that is the case it will only take 500 HP & less torque.Have you lost the spoiler,also remove the mufflers total weight loss near 50+ lbs,just have exhaust extension pieces made,its not that loud.Good luck
I could definitly do the mufflers... I'd have to have my freind come with so I could put the axle pipes and mufflers in his ride. I'd take the pipes out from the h-pipe back and slap some turn downs on there.
I don't really want to lose the spoiler though... kinda like it