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Ships within 48 hours · Estimated delivery Aug 28 - Sep 2
early 1647-31B
OEM replacement reference 12013
CNC mandrel-bent radiuses on all four bends for laser-straight ergonomics
when adding a custom exhaust system or mufflers
12MM SQUARE CHAIN
K&N, Twin Cam RK series Street Metal O.S. air cleaner assy - 08-13 Touring (NU) with stock oval air cleaner cover & stock 50mm throttle body 510862 early 1647-31BHigh Flow intake system. Re use stock air cleaner cover for stock looks. Includes a special backplate, internal velocity stack, built in breathers, oversized air filter element and hardware. A K&N Dyno test of this RK series air cleaner assembly on a 2008 Street Bob showed an increase of 6. 54 HP@5100 RPM, a 2014 103" Ultra produced an additional 8. 33 HP@4670RPM. The K&N RK Series air cleaner assemblies are truly stealthy air cleaners since the stock
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