Thread: sold
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      12-09-2012, 08:15 PM   #19
baxter3221's Avatar
Drives: 2008 E92 M3
Join Date: Jun 2010
Location: Queens, NY

Posts: 147
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FYI the 550 kit is not the same hardware as the 535. The 550 comes with a smaller pulley which makes more boost. I know this for sure because I upgraded my 535 to a 550 and ESS sent me the newer pulley with matching belt.

ESS 550 Supercharger, Megan exhaust, test pipes, etc
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