I have a 2000 Jeep Wrangler TJ with a list of upgrades. Also, that leads to a list of problems. At any speeds that I drive, my car shakes the hell out of me. IT also squeeks a ton. Despite having a steering stabilizer, lower control arms, brand new 35" tires and a re-alignment and balance, it hasn't helped one bit. My 2.5L engine is no help. My acceleration is awful and can max around 70 MPH. I have a air aid cold air intake too, and that doesnt help. I was thinking about investing in a superchip. Any suggestions for either problems?