If you don't use the proper grease they squeak like hell.

Otherwise they do improve the handling of the car but a lot of that is probably from simply replacing worn out bushings. I've never, and I doubt few have, put poly bushings in a brand new car. Usually we are putting poly into cars with 100,000 miles on them and are blown away at the improvements.

On some worn out cars you could probably put URO bushings on it and be blown away by the improvement for a few days.

How much are the bushings? There was a Malaysian guy I think selling poly bushing kits for just over $1,000. To me that's not worth it. On fieros poly bushings are the same price or cheaper, so upgrading was a no brainer. But the difference between your car and a DTM car is not the bushings, so don't expect to smoke M3s in the twisties with bushings alone.

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68 280SL - 70 280SL - 70 300SEL 3.5 - 72 350SL - 72 280SEL 4.5 - 72 220 - 72 220D - 73 450SL - 84 230GE - 87 200TD - 90 190E 2.0 - 03 G500

Nissan GTR - Nissan Skyline GTS25T - Toyota GTFour - Rover Mini - Toyota Land Cruiser HJ60 - Cadillac Eldorado - BMW E30 - BMW 135i