As most of you know, the hardest part of doing a forced induction setup on a naturally aspirated BMW M motor is the tuning. Up until now HPF and their AEM setup was the only consistent solution for a turbo. Jason as ProEFI has demonstrated that an E46 M3 with a custom turbo setup (GT40) and a Pro128 computer has hit 573 whp at 9 psi on stock internals. Impressive? Yes.
What are the specs on ProEFI's turbo M3? As follows:
- GT40 Turbo with FMIC
- Flex Fuel Sensor allows for mixes of pump gas or E85
- Traction Control
- Stock clutch, exhaust, and intake manifold
- 1000 cc injectors
What does this all mean? Well, it means the S54 turbo market may be set to open up. This will no doubt drive costs down and allow for greater variety. Pricing information and further details will come for now we are incredible excited about the potential. Check out the video below: