MCLAREN W1 4.0T V8 HYBRID (2025-2026) — Stage 1 ECU Performance Tune

$13,714.99

Stage 1: 1258HP → 1325HP (+67HP) | 988 → 1040 lb-ft (+52 lb-ft). Stage 2: 1360HP / 1070 lb-ft. Hybrid powertrain ECU suite. Bench flash. 100% reversible.

Modifications

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Base Tune $13,714.99
Total $13,714.99
Description

MCLAREN W1 (2025-2026) — STAGE 1 & STAGE 2 PERFORMANCE TUNE

4.0T V8 + Electric Motor (MHP-8) — Hybrid powertrain ECU suite — BENCH FLASH ONLY

SKU: AMT.MCL.W1.STG1


Performance Gains

Specification Original Stage 1 Stage 2
Power (HP) 1258 1325 1360
Torque (lb-ft) 988 1040 1070

Required & Recommended Parts

Tune Required Parts Recommended Parts
Stage 1 BMC Panel Filters
Stage 2 BMC Panel Filters, High-Flow Cats, Sports Exhaust Cold-Air Intake, Catless Downpipes

Overview

The W1 introduces McLaren’s new MHP-8 hybrid powertrain, combining a new 4.0 twin turbo V8 with an advanced electric module. Early calibration work on this platform is expected to focus on torque shaping, hybrid assist blending, and response optimization rather than only headline peak output.

Key Features

  • Provisional early platform support
  • Optimized hybrid assist blending
  • Sharper torque shaping
  • Faster response calibration

Vehicle Specifications

Parameter Specification
Production Years 2025-2026
Engine 4.0T V8 + Electric Motor (MHP-8)
ECU Type Hybrid powertrain ECU suite
Flash Method Bench Flash Only
Time Required 4–5 hours

Programming Instructions

  • ECU must be sent to AMT Tuning for reprogramming.
  • ECU tuning is performed via bench flash only.
  • For removal and shipping details, contact sales@amttuning.com.

Shipping Instructions

Please pack ECU securely using anti-static material or bubble wrap. Ship in a padded box with tracking and insurance.

Shipping Address:
AMT Tuning Ltd
6-25 Edilcan Drive
Concord, Ontario L4K 3S4 Canada

Phone: +1 877 469 9440
Email: sales@amttuning.com

Additional information
Weight0.66 lbs
Dimensions16 × 14 × 12 in
Vehicle MakeMcLaren
Vehicle ModelW1
Vehicle Generation
Vehicle Year
Shipping and Delivery

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