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Precision Raceworks

Precision Raceworks B58 Gen 1 Port Injection Kit

Precision Raceworks B58 Gen 1 Port Injection Kit

Regular price $899.99 USD
Regular price Sale price $899.99 USD
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This kit does not include a controller. We have two controllers to choose from.


The Precision Raceworks B58 Port Injection kit with flex fuel compatibility is a necessity to safely and sufficiently support the power levels anyone needing additional fueling. This kit is capable of providing supplemental fueling to all BMW's equipped with B58 Gen 1 engine (see fitment guide for full details).

The complete kit integrates seamlessly into your car like it left from the factory with it installed; you can barely even see the kit once the car is assembled! This kit includes everything needed to add multi-port injection and is 100% e85 compliant. We include new genuine Bosch Motorsport injectors which are flow matched both static and dynamic by an outside lab to industry leading requirements. A Detailed certificate of conformance and genuine Bosch product certificate is included with each kit giving you all flow data needed for optimal tuning.

Don’t be tricked into thinking all port injection kits are equal, the Precision Raceworks is the only port injection kit currently where all 6 injectors have even fuel distribution for each cylinder. Additionally this kit features 750cc* injectors standard (this flow rate is based on industry injector flow test pressure of 43.5psi) at 72psi these injectors flow 1000cc. What this means is our kit is capable of supporting builds from 400whp up to 1,000whp out of the box. 

*Actual flow rate may vary, as advertised flow rate is common average.

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Customer Reviews

Based on 1 review
Excellent customer service.

Michael is such a good vendor, man answered all my questions and was quick to respond, I received all my orders on time and in excellent condition, only recently installed the PI kit but due to bad weather I haven't gotten in tuned in yet, but I highly recommend MRM performance. Their customer service are amazing. 👍

Thanks for the awesome review Gafur. Excited to see how your car performs once it's all dialed in!

If you need anything else feel free to let us know!