Calibration Classes
CLASS 1 — STOCK HARDWARE
A custom ECU calibration written against your car's own data. Timing, fueling, boost and the factory torque limits are brought in line with what your hardware can actually deliver — no shared maps, no generic file.
For cars still on the factory turbo, supercharger or intake, with no bolt-ons yet or exhaust only.
WHAT'S INCLUDED
Custom ECU calibration written to your car's data
Datalogged verification before handover
One revision within 30 days
High-flow panel filter, fitted
SUPPORTED PLATFORMS
BMW — S58, S55, S68, S65, B58
Chevrolet — LT4
Ford — Coyote 5.0
Dodge — 6.2 Hellcat
Calibrated on MoTeC, Haltech, Link, Holley EFI, HP Tuners and MHD.
Results depend on platform, hardware, fuel and vehicle condition. Not sure which class fits your build? Book the free 30-minute consultation.
Our Services
A full scan and health check before any calibration work. We pull codes, review live data and confirm the car is mechanically sound enough to tune.
One hour, by appointment. If your car has known history and no outstanding faults, you can book a calibration directly instead.
In-depth diagnostics with datalogging under load. We capture fuel trims, timing correction and boost behaviour, then walk you through what the data shows and what it means for your car.
One hour, by appointment. Recommended before a calibration if the car is new to you or has unknown history.
Schedule your appointment
Schedule your vehicle's service appointment with our certified technicians to ensure optimal performance and reliability. Enjoy the convenience of expert care and attention tailored to your car's specific needs.
About the shop
Slayer Performance is an ECU and TCU calibration shop in Asheboro, North Carolina, run by a Hennessey Performance-trained calibrator who serves as master calibrator at The Legendary Garage.
We work on a deliberately narrow list of modern performance platforms - BMW, Chevrolet, Ford and Dodge - because depth on eight platforms beats surface knowledge on two hundred. Standalone systems included: MoTeC, Haltech, Link and Holley EFI.
Every car gets its own file. We log the vehicle in front of us, write the calibration against that data, and verify it under load before you drive away. No shared maps, no one-size file emailed out and hoped for.
Contact Us
Interested in working together? Fill out some info and we will be in touch shortly. We can’t wait to hear from you!