Mileage & Engine Tuning

Maximize Performance & Efficiency with Expert ECM Calibration

At Schwanke Engines LLC, we specialize in advanced GM late-model tuning using EFI Live - powerful software that gives us complete control over your vehicle’s Engine Control Module (ECM). With this technology, we optimize your vehicle’s fuel delivery, ignition timing, and overall drivability to deliver smoother performance and better fuel efficiency tailored to your driving needs.

Flex-Fuel E85 Conversions

Looking to go green or run on alternative fuel? We also offer Flex-Fuel (E85) conversions, allowing your stock gasoline vehicle to run efficiently on ethanol-based E85 fuel - an environmentally friendly option ideal for farmers and eco-conscious drivers.
Please note: Fuel mileage on E85 typically decreases by 15–25% compared to regular gasoline.

Book Your Tuning Session

Whether you want to improve fuel economy, increase power, or switch to Flex-Fuel, our expert tuning services will maximize your vehicle’s potential. Contact us today to schedule your tuning session and get your vehicle running at its best.