BMW N54 Replacement Coil Power Harness - 135i, 1M, 335i, 535i, 740i, X6, Z4 s8 d4 D-744-3 for all 2007-2014 BMW

D-744-3 for all 2007-2014 BMW Models Equipped with the N54 3

Resources: General user discussion forum with a detailed description of the JB4: Click Here

Horsepower Supported 100% E85: 550

Backed by a lifetime warranty

Resulting in peak power gains of 10whp+ and during longer pulls and back to back runs as much as 30whp+ over the heat soak prone factory intercooler

BMW N54 Replacement Coil Power Harness - 135i, 1M, 335i, 535i, 740i, X6, Z4 s8 d4 D-744-3 for all 2007-2014 BMWThe Precision Raceworks BMW N54 REPLACEMENT COIL POWER WIRES are the same wires that come with our famous BMW N54 HIGH PERFORMANCE IGNITION KIT featuring low resistance oxygen free copper. These wires are 100% custom design from the ground up and Precision Raceworks is the only company in the world to produce injection molded coil connectors specific for harness use. Coil power wires are sold in packs of 6 so you get all new power wires for each