i know this might sound wierd but you know how when you have your car on and you turn the ac on and it kinda shakes a little bit and motor gets a little louder..thats kinda how it was..i didn't have the ac on at the time when i noticed this..the rpms jumped a little...not too significant though... and it was lowered quite a bit and the rear suspension to squeek a pretty good bit when i hit a little bit of a bump..i don't know if thats fixable but i don't want to buy it if its gonna be a hassle to get it fixed..what do yall think???