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Precision Raceworks B58 Port Injection Kit
  • Precision Raceworks B58 Port Injection Kit
Precision Raceworks B58 Port Injection Kit

Precision Raceworks B58 Port Injection Kit

$799.00

The Precision Raceworks B58 Port Injection Kit is the safest and most reliable way to add the extra fueling needed for higher power builds on B58 Gen1 and Gen2 engines. It installs cleanly like OEM and is fully E85 compatible.

The kit includes flow-matched Bosch Motorsport injectors with certified flow data for precise tuning. Unlike other kits, ours provides even fuel distribution across all six cylinders, preventing lean spots and ensuring consistent power under boost.

Performance Capability:

  • 750cc injectors: 750cc @ 43.5psi / ~1000cc @ 72psi

  • Supports ~400whp to 1000whp builds out of the box

  • Works with all known fuels and flex fuel setups

Built to last:

  • Smooth-bore PTFE fuel lines (no rubber)

  • Stainless and billet hardware

  • EV6 connector compatible with AIC / JB4 controllers

Fits: 340i, 440i, 540i, 640i, 740i, 840i, M140i, M240i, M340i, M440i, X3/X4 M40i, X5/X6/X7 40i, Z4 M40i, Supra, and more (full list unchanged).

If you’re pushing the B58 past stock fueling limits — this is the kit that keeps your engine safe and your power goals achievable.

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