N54 BimmerLife Tuning Coilpack Upgrade V.3
The N54 platform has advanced very far in the last few years. With that has brought an increasing demand on the stock ignition system. High output N54's have to rely on reducing the gap significantly to prevent spark blow out. This in turn causes reduced drivability, poor fuel economy, and less power. This was simply unacceptable for us.
- BimmerLife Tuning's very own wire harness which is completely plug n play