i have a few questions

[suprakid91]

first off, when i bought the car it kind of vibrated when i braked. but it was very minor. now its worse. like warped rotors. i think thats what it is. and i only feel it on the front. the guy i bought it from told me after market ones will warp. i don't really believe him. but i thought i would ask the experts on that. and also, where can i find a new...er leather or whatever it is drivers side seat? mine is pretty tore up from getting in and out of it. also i have a lot of free play on my clutch pedal. like i can press it in about an inch and a half before it starts to disengage. the clutch itself was replaced about a year ago. he showed and gave me all the paperwork on all repairs and maintenance on it. what could that be? and finally, what is the best sounding exhaust/ muffler that you guys have? because mine is too quiet. i want people to look. not that they dont because i have one of only a handful in minnesota. but still i want to make it sound really nice.

anything would help. thanks