18/09/2026
2003 Evolution 8MR Intense 5353RS Mafless Flexfuel Stock ECU
Dino has owned this Evo 8 MR since it was completely stock and, rather than doing everything at once he has built the car up in stages over the years enjoying each setup before moving on to the next.
From the first bolt on modifications running 98 through to E85, and now onto the next stage of the build. It was finally time to step things up again with a new turbo, camshafts, valvetrain upgrade, Mafless conversion and Flex Fuel setup controlled through the factory ECU.
Check out the modifications and results below:
- Jun 272 camshafts with springs & retainers
- Intense 5353rs turbocharger
- Full split dump turbo back system
- PPM 500hp fuel setup with flex
- Plazmaman pro series intercooler
- GFB response dual port bov
- Benchmarks mafless kit
Dyno results:
98 - 243kw / 370nm @ 24psi peak
E85 - 288kw / 431nm @ 26 psi peak
A really well rounded setup. Responsive, flexible and built to be enjoyed both on the street and at the track.
More information about mafless & flex fuel.
Going Mafless / Speed Density
By removing the factory MAF sensor from the equation, we now utilise MAP and IAT sensors to calculate engine load and airflow.
This gives us much more flexibility with the setup, allowing for larger intake systems, bigger turbo combinations and a vent-to-atmosphere BOV without having to work around the limitations of the factory airflow meter.
It also helps eliminate the common stalling and over-fuelling issues that can occur when metered air is vented to atmosphere on a traditional MAF-based setup.
The Flex Fuel setup gives the freedom to run 98, E85 or anything in between. The ECU reads the ethanol content and adjusts the calibration accordingly, so there’s no need to drain the tank or manually switch between separate fuel tunes.
Perfect for street, long drives, spirited runs and track duties.
Contact us now if you’re ready to take your vehicle to the next level 😉
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