Quote:
Originally Posted by Bmw135er
The 515 pn is a E90/92 E82 (1M) front bar- 26.5mm. The 655 pn is a E90/92 rear bar which is 22.5mm according to the parts catalog. Thats direct from the manufacturer. ;-)
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He's right. I wonder if all the sites just have it listed wrong for some reason. Did anyone ever really get a 20mm sway bar from some other model and somehow it got confused with the E90/92 M3 rear sway? Are people's reviews of rear sways with a true 20mm, or 22.5 mm?
Out of curiosity, are the 20mm stickers you see on it BMW stickers or vendor stickers?
For your reference, the 1M's bar is also 22.5 - although it's a different part number so who knows what the stiffness comparison is. Of course, the 1M also comes with a slew of different parts that all work in harmony, including that wonderful LSD, so YMMV...