RK Autowerks Port Injection Kit for BMW S58 Engines
The RK Autowerks Port Injection Kit is designed to meet the demands of high-performance S58 builds. Whether you’re chasing big horsepower or seeking to maximize fueling efficiency, this kit delivers reliable results without compromise.
Precision CNC-machined and tested in RK’s Texas facility, each component reflects the brand’s commitment to engineering excellence. This kit is fully compatible with both the factory S58 intake manifold and the RK Billet Port Injection Manifold, giving you complete flexibility in your setup.
Fueling Confidence with E85 Support
E85-compatible fuel lines are included, allowing you to safely run ethanol blends and take full advantage of the power potential that port injection offers.
Why Port Injection?
Port injection helps achieve a more complete fuel burn by introducing fuel upstream of the intake valve. This results in better atomization, reduced carbon buildup, improved throttle response, and greater top-end power—especially critical at higher boost levels where direct injection alone can fall short.
Kit Contents:
- RK Autowerks S58 Fuel Rail
- E85 Compatible Fuel Lines
- All Necessary Fuel Fittings
BMW S58 Applications:
2 Series
2023-Present G87 M2
3 Series
2021-Present G80 M3
4 Series
2021-Present G82/G83 M4
X3 Series
2019-Present F97 X3M
X4 Series
2019-Present F98 X4M
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