Kies Motorsports Crank Bolt Lock for S55, N55, and N54 G3x 5 series Elevate your driving experience to

Elevate your driving experience to the next level and make a statement wherever you go

switching octanes

It is programmed with the Split Second R4 engine management software included on CD or available for download here

Weight: 2

Kies Motorsports Crank Bolt Lock for S55, N55, and N54 G3x 5 series Elevate your driving experience toIntroducing 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