ECU Pro Tune PR-8 EVO
1-year warranty
90-day statutory + 9-month contractual · see terms
BR Technical Support
Proprietary manufacturer engineering
Free shipping
Orders over R$ 2,000 (Brazil)
Ships in 7 to 15 business days

What is the PR-8 EVO ECU
The PR-8 EVO is the evolution of Pro Tune's flagship ECU, developed for high-performance applications that demand maximum precision, processing speed and extensive expansion capability.
Designed for everything from naturally aspirated builds to high-power turbo engines, the PR-8 EVO offers complete fuel and ignition management, bringing together advanced features for racing and high-performance vehicles.
The new generation features 8 native ignition outputs, providing greater flexibility for applications that require individual coil control, and 2 independent CAN buses, allowing simultaneous integration with dashes, power modules, expansions, data acquisition systems and other compatible devices.
Who it's for
Designed for V8, V10 and V12 engines, extreme racing builds, professional drag racing, stock car and GT3 builds. It is the choice when the engine needs bank-to-bank management (separate even and odd banks), multiple variable valve timing systems and simultaneous reading of thermocouples on each bank for precise mixture control.
What's new
- 8 native ignition outputs, providing greater flexibility for applications that require individual coil control.
- 2 independent CAN buses, enabling simultaneous communication with dashes, power modules, expansions and other compatible devices.
- Updated hardware, developed to deliver even more performance, stability and expansion capability.
- It retains all the advanced features and strategies that established the PR-8 as Pro Tune's flagship ECU.
Main features
- Dual built-in lambda/O2 sensor controller (Bosch LSU 4.2, LSU 4.9 and NTK)
- Dual built-in thermocouple conditioner
- Dual boost control
- Quad variable valve timing control
- Dual electronic throttle (drive-by-wire) control
- Launch Control
- Traction control
- Power Shift — flat shift
- Anti Lag
- Asymmetric ignition
- Peak and Hold
- 3D maps for fuel, ignition and programmable functions
- Auxiliary injector bank
- Automatic lambda learning
- Limp-home map (fallback for TP, MAF and MAP failures)
- Password-protected map
- Customizable CAN
- Support for Connect Box CB-1204 (input expander)
- 128 MB continuous datalog
Technical specifications
Management capacity
| Cylinders | Up to 8 sequential / 12 semi-sequential |
|---|---|
| Injector outputs | 8 (4.5 A) — 2 with dual function |
| Ignition outputs | 8 (with built-in driver) |
| Auxiliary outputs | 12 (7×3A + 2×4.5A + 2×ETC 5A + 1 timed) |
| Sensor supply outputs | 5 V and 8 V |
Inputs and sensors
| Total inputs | 26 |
|---|---|
| 5 V analog | 15 configurable |
| 12 V analog | 2 configurable |
| With pull-up (2.7 kΩ, 5 V) | 14 |
| Digital (0.5–6500 Hz) | 8 |
| RPM and cam phase | 2 dedicated (Hall or inductive) |
| Thermocouples | 2 built-in conditioners |
| Built-in MAP | 400 kPa (upgradable to 700 kPa) |
Mechanical and electrical characteristics
| Part Number | 27174 |
|---|---|
| Dimensions | 133 × 154 × 40 mm |
| Weight | 580 g |
| Housing | Machined aluminum, powder coated |
| Connectors | 48-pin Molex + 23-pin AMP Seal |
| Operating voltage | 7 V to 22 V |
| Maximum current draw | 5 A @ 12 V |
| Operating temperature | -10 °C to 105 °C |
Communication
| CAN | 100 to 1000 kbps + 2 customizable CAN |
|---|---|
| Serial | 115.2 / 500 kbps |
| USB | Direct communication with Pro Tune Workbench PRO |
Compatible software
- Pro Tune Workbench PRO — engine calibration with real-time graphs
- Pro Tune Analyzer — data analysis (graphs, histograms, reports)
Shipping time
⏱ Ships within 7 to 15 business days after payment confirmation.
Frequently asked questions
What type of engine is the PR-8 EVO designed for?
High-performance V8, V10 and V12 engines, drag racing, stock car, GT3 and any application that requires bank-to-bank management with separate thermocouples and lambda sensors per bank.
How many pre-wired harnesses does the PR-8 EVO need?
The PR-8 EVO uses two connectors: 48-pin Molex (primary) + 23-pin AMP Seal (secondary). Complete pre-wired harness options are available, or you can purchase the harnesses separately to suit your application.
What is the Connect Box CB-1204 and why does the PR-8 EVO support it?
The Connect Box CB-1204 is a CAN-based input expander. Even with 26 native inputs, extreme builds may need more readings — the CB-1204 solves that.
What's the difference between the PR-8 EVO and the PR-4 EVO?
The PR-8 EVO is for larger engines (V8/V10/V12) with per-bank readings; it has double everything (lambda sensors, thermocouples, VVT, datalog). The PR-4 EVO is ideal for 4- and 6-cylinder engines with less extreme requirements.
Does it include warranty and support?
Yes. Pro Tune technical support and a 1-year warranty (90-day statutory warranty + 9-month contractual warranty), as set out in the Warranty Terms.