HOW MUCH POWER CAN YOUR S58 GAIN WITH MTECH TUNING?

Horsepower & Torque #s are calculated to the wheels, utilizing our in-house Dynojet.

Stock S58 Engine – OEM Exhaust / OEM Intake
✅ 93 Octane Fuel
📈 600 Wheel Horsepower
📈 670 FT-lbs Torque

Stock S58 Engine – MTech Downpipe & Intake
✅ 93 Octane Fuel
📈 640 Wheel Horsepower
📈 700 FT-lbs Torque

Stock S58 Engine w/ MTech Bolt-Ons (E50 Blend)
✅ E50 Fuel
📈 750 Wheel Horsepower
📈 730 FT-lbs Torque
✅ 1/4 Mile ET: 9.7 - 9.8 seconds

CAN I USE FULL E85?

The OEM fuel system is maxed out when tuning on full E85. To run full E85 safely, you'll need to upgrade your fuel system.

✅ Add the MTech Port Injection Kit + Low-Pressure Fuel Pump
✅ Achieve 780 Wheel Horsepower / 750 FT-lbs Torque on the stock turbos
✅ Ready to upgrade to PURE Turbos or the MTech Single Turbo Kit for even more power

S58 ENGINE | SUPPORTED MODELS
✔ M2 (including xDrive)
✔ M3 (including xDrive)
✔ M4 (including xDrive)
✔ X3M
✔ X4M

IMPORTANT NOTE FOR 6-SPEED MANUAL OWNERS:
If you're driving a 6-speed manual S58, a clutch upgrade is highly recommended once tuning your car. The added torque—especially with E50 or E85 blends—can quickly overpower the stock clutch. Upgrading ensures reliable power delivery and prevents premature clutch wear or failure. 

Upgrade your clutch to the Clutch Masters Factory Fit FX250 Twin Disc.

Still Want More Power?

Then our S58 M800 Package is what you'll need!