Quote:
Originally Posted by cvc 22349a
He might want to keep riding on rft's in which case most of those components would make the ride too hard.
Dinan does sell a quaife or wavetrac lsd. They package it in a box with a big D on it and mark it up nicely for those who are trying to get points for a dinan trunk badge 
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True. Back in '09, nobody really liked 'em. Truth was, if tire pressure was exactly as recommended and temp was, preferably, over 60 deg F, they were tolerable but a cut or two below PS2's. Bets off, you hit a pothole.
Now 3's suspension is improved and PS2's are replaced by PSS's. OP should replace RFT's w/same if adding delrin [M] bushings/ball joints or simply to improve his ride & handling.
Dinan does OEM a Quaife LSD, last I heard, but only for MT - no DCT's allowed. Odd - LSD's readily available for DCT.
I assumed 335is suspension has all the deficiencies of a 335i; maybe not entirely so.
Not entirely wrong either....e-diff....those subframe bushings & sways....steel arms fitted w/rubber baby bumpers....yikes!