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      09-05-2012, 09:48 PM   #4
First Lieutenant

Drives: 2011 135i DCT
Join Date: Nov 2011
Location: Earth

iTrader: (1)

A stiffer rear will end up unloading one of the wheels. With the 135i lack of a limited slip differential that means you end up spinning the wheel that has little load on it so you can't get power down coming out of turns. Once people upgrade to a limited slip diff they will consider bigger rear bars.

The reason it is believed that the front anti sway bar helps is that by keeping the front flatter the tires are not rolled over as far on in turns and there is less positive camber added allowing a better contact patch on the front tires which reduces understeer. In theory.
2011 BMW 135i DCT M Sport, black sapphire metallic,Coral red tint, black line tail lights, back grils, BMW Performance spoiler, Apex ARC8, 235/265 Dunlop ZIIs, Ohlins coilovers w/ Swift springs, M3 front bits, Whiteline rear sub frame bushings, Vorshlag camber plates, Stoptech pads, custom exhaust, stud conversion, spacers, bms jb4, custom down pipe, bms intake