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5 Metric to 3/4in Barb Fitting - Aluminum
4L NexTek Series High Performance Valve Springs
roto-molded intake tubes to achieve maximum power gains while maintaining a perfect fit
5mm Stem Keepers/Locks (fits BC2010 & BC2011 retainers)
NRG Quick Lock V2 w/Free Spin - Chrome Gold (Will Not Work w/Thin Version QR or Quick Tilt System)
K&N Replacement Air Filter for 11-12 BMW X3 3.0L L6 1-Wire 5 Metric to 3/4in BarbK&N's replacement air filters are designed to increase horsepower and acceleration while providing excellent filtration. We make over 1,200 different replacement air filters for the majority of vehicles on the road. These filters are washable and reusable and are custom designed to fit into your existing factory air box. Their drop in design means adding performance is simple. With most vehicles you simply remove the disposable air filter and replace
