sup...i was wondering i have a exhuast n a intake in my 240sx 91...and i was wondering what should i do next...and make my car faster?...and i was wondering why when i drive fast and when i intend to brake the whole car start to shake from the rear wheel when i brake only...and i wonder why does it do that...and im looking for a body which body kit would look nice on a 240sx...please respond..thanks

warped brakes or bent frame

no abs? and try reducing your weight and getting lsd or something. Oh and a good thing to have is your oil gauge so you know the pressure and when to change your oil. It is a good thing to keep an eye on your oil.

Have a mechanic look at the rotors to decide if they need to be re-surfaced or if they need to be replaced. Its a good idea to get new brake pads if you get the rotors re-surfaced or replaced.