HOW MUCH POWER CAN YOUR B58 GAIN WITH MTECH TUNING?

Horsepower & Torque numbers are calculated to the wheels using our in-house Dynojet.

Stock B58 Engine – OEM Exhaust / OEM Intake
✅93 Octane Fuel
📈 435 Wheel Horsepower
📈 530 FT-lbs Torque

Stock B58 Engine – MTech Downpipe & Intake
✅93 Octane Fuel
📈 460 Wheel Horsepower
📈 570 FT-lbs Torque

Stock B58 Engine w/ MTech Bolt-Ons (E50 Blend)
✅E50 Fuel
📈 520 Wheel Horsepower
📈 650 FT-lbs Torque

CAN I USE FULL E85?

The OEM fuel system is at its limit on full E85. To run E85 safely and maximize power, you’ll need fuel system upgrades.

✅ Add the MTech Port Injection Kit + Low-Pressure Fuel Pump
✅ Achieve 540 Wheel Horsepower / 660 FT-lbs Torque while maxing out the OEM turbocharger
✅ Ready for turbo upgrades like PURE Turbos for even more power

B58 ENGINE | SUPPORTED MODELS
✔ G42 M240i (incl. xDrive)
✔ G2x M340i (incl. xDrive)
✔ G2x M440i (incl. xDrive)
✔ G3x 540i
✔ G32 640i
✔ G1x 740i / 740Li
✔ G1x 840i
✔ G0x X3M40i / X4M40i
✔ G0x X5 / X6 / X7 40i
✔ G29 Z4 M40i
✔ Toyota GR Supra

IMPORTANT NOTE FOR 6-SPEED MANUAL OWNERS
(Toyota GR Supra & Z4 M40i Manual Models):
If you’re driving a manual B58-powered vehicle, we highly recommend upgrading your clutch when tuning for higher power levels. The added torque—especially on E50 or E85—can overwhelm the factory clutch. A performance clutch ensures reliable power delivery and protects against premature wear or failure.

Still Want More Power?

Then our B58 M800 Package is what you'll need!