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      07-10-2012, 10:41 PM   #2
CJ421
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Drives: 2017 F30 340i
Join Date: Feb 2011
Location: Philadelphia, PA

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I have a Quaife and here's what I like about it:
-Proven technology. Been around for decades
-Quiet. No difference vs. stock in this regard
-No maintenance

Can't comment on the Wavetrac. But the Quaife - the dependability of these things is worth a lot.
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2017 BMW 340i (F30) - M Sport, Mineral Gray/Coral Red, 6MT; Dinan exhaust
Past: 2011 335i (E92) - M Sport, Le Mans Blue/Black, 6MT