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2007-2010 E90/E91/E92/E93 BMW 335i (N54)
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1 center bore spacer would only fit the rear of the car and not the front due to front wheel have a different center bore size
* True 4-1 merge collector provide smooth exhaust flow and higher HP gain
Jackson Racing Pulley Spacer b series JRSC BLACK white 2007-2010 E90/E91/E92/E93 BMW 335i (N54)Most of the four groove Jackson Racing pulleys had a 0. 8" offset, however a few of them had a 1" offset. Because the 4 groove Jackson Racing pulleys we offer are the more common 0. 8" offset, this 0. 2" spacer must be used with our pulley if your system has the 1" pulley offset or your belts will slip. If you aren't sure which offset measurement your Jackson Racing kit has then you may want to purchase this just in case or you will throw belts due to