Kies Motorsports Crank Bolt Lock for S55, N55, and N54 Bolt Count:8 This kit is capable of

This kit is capable of providing supplemental fueling to all BMW's equipped with B58 Gen 1 engine (see fitment guide for full details)

0L BMW E92 335i N55 3

1 for 3 and 5 spline applications

2011-2013 335i & Xdrive (E chassis)

BKC Manifold

Kies Motorsports Crank Bolt Lock for S55, N55, and N54 Bolt Count:8 This kit is capable ofIntroducing the all new Kies Crank Bolt Lock! Kies Motorsports Crank Bolt Lock acts to "lock" the crank bolt on the S55, N55, and N54 in an effort to prevent the crank bolt from backing out, which can lead to catastrophic engine failure. By locking the bolt into place, you virtually eliminate the possibility of the crank bolt working its way loose. Please note, by adding the Kies Crank Bolt Lock, it is still possible to spin a crank hub, however, it