Lowered bit? Trouble with wheel rub on fenderwells?
 

Use ZipZap tires on the rear wheels!

I'd post pics but my camera battery is dead, but here's the deal: Use the ZipZap tires on the rear wheels if you're getting light wheel-rub on your lowered bit despite having sanded out the wheel wells; they're like low-profile tires. :D Another advantage is that since it's slightly affecting your 'final drive' ratio, you can accelerate a little faster (Smaller diameter tire), but not much.

or take a candle/lighter/heatgun/ or even a soldering iron and heat the plastic up enough to form it. then use something and push outwards on the fenders/quarters untill you get it where you want it. now you have a widebody bit/micro/zz.