Tier 2.jpg
4th Gen 2.5T Dev Teaser.JPG
2.5T Tier 2 vDyno - 1.05 CF, v2 smoothingx1.jpg
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2.5T Tier 2 Dev 2.3.0.3.jpg

2.5T Tier 1 to Tier 2 Upgrade

US$550.00

What Tier 2 brings to your 2.5T Mazda:

280+ WHP & 360+ lb-ft

-Maximum increase in peak boost pressure, peak torque, and peak horsepower

-Max optimal flow from the Factory Turbo (~30lb/min)

-FULL throttle opening throughout entire RPM range

-Zero stuttering or negative driveability issues

-Optimized fuel ratios and minimized fuel trims without any fuel pump changes (not excessively rich, nor dangerously lean)

Information on required mods and dyno results below.

What Tier 2 brings to your 2.5T Mazda:

280+ WHP & 360+ lb-ft

-Maximum increase in peak boost pressure, peak torque, and peak horsepower

-Max optimal flow from the Factory Turbo (~30lb/min)

-FULL throttle opening throughout entire RPM range

-Zero stuttering or negative driveability issues

-Optimized fuel ratios and minimized fuel trims without any fuel pump changes (not excessively rich, nor dangerously lean)

Information on required mods and dyno results below.

280 WHP & 360 lb-ft, DRTuned Racing 2.5T Tier 2 Tune dyno chart

Minimum recommended mods:

High flow drop-in panel filter (or better), or other true cold air intakes. Short ram intakes not supported due to major heat soak issues.

Catback Exhaust - LP Custom Fab Catback

**91+ octane is required, same as our Tier 1 tune.**

**Throttle/Pedal commanders, JB4 Piggy backs, or other devices that influence the ECU data are not compatible.**

Aftermarket Diverter/Blow off Valves are not compatible and will cause performance issues due to the closed-loop MAF reference system in use on the Skyactiv platform.

Remote Tuning Process & Included Timeline

Tier 2 will require the same full tuning & datalogging process used for Tier 1, from start to finish.
Up to 6 revisions are included with the upgrade, to be completed within a maximum of 4 months from date of purchase. Any delays imparted from DRTuned will result in extensions granted at no cost.