They are specifically designed to serve as replacements for BMW part numbers #11247624616 and #11247589671 in the BMW N20 / N26 4-cylinder engines with a 144

Proven reliable in high-horsepower and high-boost applications

2006 - 13     E90 / E91 / E92 / E93     335xi

Weight: 360g

Tested and Proven by CSF’s Global Network of R&D Partners

S58 CNC Cylinder Head Porting M54 Turbo They are specifically designed to5150 AutoSport 5 Axis CNC Cylinder Head Porting for BMW S58 Engines Please note that price is based on customer providing disassembled, clean core. If you need help sourcing a core, please contact our sales team. Also note that this service includes a 1 2 week turnaround time for service completion, beginning when the 5150 Team receives your head. Investing in cylinder head porting for your high performance BMW engine enhances airflow efficiency for