JMRacing

This was a fun one 🔥 motorsport-grade engine and chassis harness for an SR20 powered R32 Skyline.

•ECUMaster EMU Pro 8
•ECUMaster PMU-24DL
•Haltech UC-10

Concentric twisted tefzel wire loomed with Raychem DR25 and sealed with epoxied heat molded boots. Built for reliability under any conditions.

725whp S58 MHD+ Flex Fuel Custom Tune by on our Mainline Prohub Dyno.

Smooth, Strong, Repeatable. Book your session and level up your BMW

G80 M3 Competition MHD+ Flex Fuel custom calibration completed by

The S58 platform demands more than an off-the-shelf approach. Bend Calibration’s expertise paired with the precision of our Mainline Hub Dyno results in power you can trust from one of BMW’s most advanced M platforms.

No shortcuts. No generic maps.
The gold standard for S58 tuning.

📍 Portland, OR