Pistonix Apex
Top of the line. More I/O, ride-by-wire, full Milwaukee-Eight support.
Apex takes everything in Forge and adds PID control of the electronic throttle (ride-by-wire) with redundant TPS, auxiliary outputs for staged secondary injectors, 2-stage nitrous and water-methanol, and per-cylinder knock detection via standard Bosch piezo sensor. Still V-twin native (M8 is a 2-cylinder V-twin like Twin Cam) — the right ECU for Milwaukee-Eight 2017+ and aggressive turbo/nitrous builds.
Values may shift up or down before pre-order opens.
See pricing details →Roadmap after Phase 7.
Technical highlights.
- MCU
- STM32H7 Cortex-M7 480MHz
- Cylinders
- 2 sequential (V-twin)
- Injectors
- 2 high-impedance + 2 staged secondaries
- Coils
- 2 smart coils
- Trigger
- Configurable VR/Hall, M8 native
- Lambda
- 2× wideband + 4× narrowband
- Knock
- Per-cylinder piezo sensor
- CAN bus
- 2× 500kbps + HDLAN passthrough
- Ride-by-wire
- PID with redundant TPS
What is inside.
Professional ride-by-wire
Dedicated PID, dual TPS redundancy, and a fail-safe that closes the throttle on any critical fault.
HDLAN passthrough
Keeps original Harley cluster and ABS communication alive on Milwaukee-Eight.
Per-cylinder knock
Adaptive digital filtering by RPM band. Pulls timing on the offending cylinder only.
2-stage nitrous
Progressive activation by TPS, RPM and speed. Configurable hard- and soft-cuts.
Water-methanol injection
Pump and WMI injector drivers with a dedicated map vs. boost.
Flex fuel
Reads ethanol sensor and adjusts AFR target, injection time and ignition in real time.
Who we built it for.
Professional builders and tuners, Milwaukee-Eight with ride-by-wire, complex turbo/nitrous projects.
- CNC aerospace-grade aluminum case
- IP67 AMP Superseal connector
- Compatible with Pistonix Dash, Ride and Garage
Rest of the lineup.
Pistonix Forge
Entry-level programmable ECU. Commercial pilot focused on Twin Cam, with a roadmap for Sportster, Evolution and Shovelhead.
ECUPistonix Quarter
Race-only variant. No ABS, no factory cluster, no homologation compromises.
HardwarePistonix Dash
4" capacitive touch IPS display, sub-1-second boot, configurable gauges and real-time alerts.
MobilePistonix Ride
iOS and Android app for live monitoring, GPS race telemetry and map management.
CloudPistonix Garage
Backend that keeps your tunes, distributes basemaps, ingests post-run telemetry and enables remote support.
SoftwarePistonix Tuner
Desktop software for professional tuning. 2D/3D map editor, datalog with overlays and firmware flashing.
Be the first to know.
Pistonix is under active development. Sign up for product updates, early basemaps, invites to ride at Milwaukee Garage Drag Racing events, and priority on the first batch of Pistonix Forge.
- Monthly roadmap and firmware updates
- Invite to pre-sale tuning sessions
- Priority on the initial Pistonix Forge batch
- Early access to per-engine basemaps