08/09/2026
This 1985 Ford Mustang LX came to Royal Auto Care with a freshly built turbo 5.0 under the hood.
Running a standalone Holley Terminator X EFI system, we put it on our in-house hub dyno for a custom 93-octane tune and broke the fresh short block in right, dialing it in over multiple sessions to get it street-safe and reliable. Final pull: 553 HP at the wheels.
From fresh builds to daily drivers, we tune them all in-house.
Royal Auto Care, Westland, MI