OEProTune_V3_1_4.zip 22.4 MB
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October 9, 2026

OE ProTune V3.1.4

Did a couple random bugs and fixes. Including the tutorial/lessons just going into the next page not giving enough time to read.

2 Step and Pops and bangs a bit louder now.

Dark Mode:

Rotary engines: Rotary engines are now tuned as rotaries. No valves, the correct fuel injector timing, and real Mazda engine sizes (13B, 20B, 26B), so fuel and injector numbers match a real rotary ECU. The OE Turbo kit now fits rotaries too.

Rotational idle, Simple or Manual: Simple works with two sliders like before. Manual lets you build the idle yourself by tuning the idle cells in your fuel and ignition tables, like older versions. You can also set the idle target higher (up to 3,000 rpm) for engines that idle high.

Pops follow the car’s own bangs: The OE pops now also play whenever the car itself backfires: on liftoff, on shifts, and on the limiter. Use Pop sound to hear both together, or OE samples only to replace the car’s sound. Only works with your tune on, and can be switched off on the Pops & Bangs page.

Staged injection: For engines with more than one injector per cylinder or rotor (like the RX-7 and RX-8 rotaries). The primary injectors work alone at low load and the secondaries come in as demand rises, just like a real staged setup. Set the staging points and your secondary injector size on the new Staged Injection page. If the secondary size is set wrong, the mixture shifts only once the secondaries come in, just like on a real dyno.

Also new: Default axes. Save your favourite fuel and ignition axes once and every new car starts with them.

Custom BOV sounds: Pick a new blow-off valve sound and set its volume on the Boost Control page.