they've entirely replaced the slim stock core and plastic end tanks with a full aluminum

they are inexpensive to buy

1 mm Intake / 28

2020-Present     G20/G21     B3

The issue some owners have experienced is road debris that impacted the OE belly pan hard enough to crack the oil cooler

B58 5-Axis CNC Cylinder Head Porting by 5150 AutoSport scr5150 they've entirely replaced the slim5150 AutoSport 5 Axis CNC Cylinder Head Porting for BMW Toyota B58 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