Mazda MX-5 NC 2.5 Swap – 6 Years Later, Still Strong

One of the first 2.5L Duratec swaps in Greece came back to DMS TUNED after 6 years of daily driving. Same engine. Same setup. Still running flawlessly. Now it was time for a proper fine-tune.

Mazda MX5 NC 2.5 swap dyno session at DMS Tuned

Setup

  • 2.5L Duratec Swap
  • Stock camshafts
  • AEM intake
  • DMS 45mm 4-1 headers
  • Full 70mm exhaust system
  • Custom ECU tune by DMS TUNED

Dyno Results

Before Fine Tune:
179HP / 232Nm

After Fine Tune:
191HP / 249Nm

MX5 2.5 swap dyno graph before after

Proven Reliability

Six years of daily driving. No drama. No failures. Just proper engineering, correct installation, and safe calibration.

This is how a 2.5 swap should perform — smooth power delivery, strong mid-range torque, and factory-like drivability with real gains.

Thinking About a 2.5 Swap?

Learn more about our MX-5 2.5 swap packages or explore our Mazda tuning projects.

Ready to build yours? Contact DMS TUNED and let’s plan it properly.