Mazda MX-5 NC1/NC2 2.5L Pretuned ECU File – Ready to Flash

Swapped your NC1 or NC2 MX-5 to a 2.5L engine? Skip the hassle of tuning from scratch with our ready-made 2.5L pretuned ECU file, designed specifically for 2.5L Duratec/MZR swaps in NC1 and NC2 MX-5 models.

This file is pre-calibrated for a stock 2.5L engine with essential tuning parameters already dialed in—just flash and drive. Whether you're using the factory ECU or a compatible standalone, this base map provides smooth idle, reliable cold starts, and solid performance across the rev range.

✅ Optimized for stock 2.5L engines
✅ Compatible with NC1 and NC2 platforms
✅ Reliable cold starts and idle
✅ Ideal starting point for further tuning or daily driving
✅ Instant download after purchase

Note: This file is intended for naturally aspirated 2.5L swaps using stock injectors, MAF, and intake. For modified setups (cams, ITBs, forced induction), a custom tune is required.