Mazda MX-5 NC 2.5L Swap — Stock 2.0 ECU Tuned
Mazda MX-5 NC upgraded with a 2.5L Duratec engine running on the factory 2.0 ECU, equipped with 63.5mm performance exhaust and 45mm headers. Custom calibration by DMS Tuned.
Vehicle Specification
- Mazda MX-5 NC
- 2.5L Duratec swap
- Stock 2.0 ECU
- 63.5mm performance exhaust system
- 45mm headers
- Custom ECU calibration by DMS Tuned
Swap Strategy
The 2.5L conversion retains the factory 2.0 ECU with optimized fueling, ignition and VVT mapping. Combined with upgraded exhaust flow, the result is strong mid-range torque, improved throttle response and OEM-like drivability.
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