MX-5 NC 2.5L – 45mm 4-1 Performance Headers

New 45mm 4-1 headers designed specifically for Mazda MX-5 NC 2.5L swap applications. Engineered to improve exhaust flow, increase mid-range torque and unlock the full potential of the 2.5L MZR/Duratec engine.

Technical Specifications

Application: Mazda MX-5 NC 2.5L Swap
Primary Diameter: 45mm
Design: 4-1 Performance Manifold
Optimized for high-flow setups
Compatible with stock or aftermarket ECU tuning

Performance Benefits

Improved exhaust scavenging
Stronger top-end power
Enhanced throttle response
Better overall engine breathing

When combined with proper ECU calibration, intake upgrades and a free-flow exhaust system, these 45mm 4-1 headers help the 2.5L platform reach higher power levels safely and efficiently.

Product Image

MX-5 NC 2.5L 45mm 4-1 performance headers by DMS Tuned

Related Upgrades

MX-5 NC 2.5 Swap Solutions
DMS Stage 2 Camshafts
MX-5 ECU Tuning

Order & Installation

Contact DMS Tuned for availability, installation and dyno calibration packages.