N20 / N26 5-Axis CNC Cylinder Head Porting by 5150 AutoSport

5150 AutoSport 5-Axis CNC Cylinder Head Porting for BMW N20 N26 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 improved engine power, throttle response, and overall performance. By optimizing the intake and exhaust passages, porting reduces restrictions, allowing the engine to breathe better and generate more horsepower and torque.

We only use CNC equipment, ensuring that each port is machined to the exact same specifications, providing uniformity across all cylinders. This precision is crucial for maintaining consistent performance and efficiency.

Service Overview:

Multi-Angle CNC Porting

Porting involves modifying the intake and exhaust ports of the cylinder head to improve the flow of air and fuel into the combustion chamber and the expulsion of exhaust gases out of the chamber.

The first step of this process involves assessing the cylinder head's current flow characteristics to identify any restrictions or turbulence. Then, material is carefully removed from the walls of the intake and exhaust ports to simultaneously enlarge them and improve their shape for optimal flow. The result is a smoother, more direct path for air and fuel into the combustion chamber, as well as a smooth, more efficient path for exhaust to flow out of the combustion chamber. 

Because we use CNC machining, we can ensure each port is exact and even across the cylinder head. This means airflow is balanced across all cylinders. Benefits of porting include increased airflow for more power and improved throttle response. 

BMW N20 Applications:

1 Series

2011-2015     F20/F21     116i / 118i / 120i / 125i

2 Series

2014-2016     F22/F23     220i / 228i

3 Series

2012-2016     F30/F31     320i / 328i
2013-2016     F34     320i / 328i GT

4 Series

2013-2016     F32/F33     420i / 428i

5 Series

2011-2017     F10/F11     520i / 528i
2011-2017     F07     520i / 528i GT

X1 Series

2012-2017     E84     X1 sDrive20i / xDrive20i / xDrive28i

X3 Series

2012-2017     F25     X3 sDrive20i / xDrive20i / xDrive28i

X4 Series

2014-2016     F26     X4 xDrive20i / xDrive28i

X5 Series

2013-2014     F15     X5 xDrive25i / xDrive28i

Z Series

2011-2016     E89     Z4 sDrive20i / sDrive28i

BMW N26 Applications:

3 Series

2013-2016     F30/F31     320i / 328i / 328i xDrive
2014-2016     F34     328i / 328i xDrive GT

4 Series

2014-2016     F32/F33     428i / 428i xDrive
2014-2016     F36     428i / 428i xDrive Gran Coupe

5 Series

2012-2016     F10     528i / 528i xDrive

X1 Series

2013-2015     E84     X1 xDrive28i

X3 Series

2013-2017     F25     X3 xDrive28i