Engine Modifications, EFI Conversions, Dyno Tuning and Rental, Suspensions and More!





Automotive & Performance Tuning

Goblin Garage is a full-service, high performance, automotive shop in Des Moines, Iowa. Our certified, professional mechanics specialize in dyno tuning, EFI conversions, drivability for classic muscle cars and modifications of all GM LS and LT engines. We provide customized car care from classic cars to modern GM vehicles. At Goblin Garage, our experienced automotive professionals have a motorsports mentality and make sure your vehicle is ready for the road or the track.


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Our Mission & Certifications


Goblin Garage Certifications

Our intention is to support our customers with their modifying and tuning needs for their GM vehicle and classic muscle cars. We operate with integrity, honesty and can guarantee professional service and experience. Whether you need a dyno tune or need to upgrade the suspension, Goblin Garage has the tools to help you get the most out of your vehicle.

  • Holley:
  • Holley Training
  • Holley Certificate Program
  • Holley EFI Program for all there stand-a-lone EFI computers
  • EFI University:
  • Accelerated Certificate Program
  • The Tuning School:
    • HP Tuners Generation 3 and 4 LS Engines
    • HP Tuners Generations 5 LT Engines
    • Certification for tuning stock GM ECU's
    • Bolt-Ons, Cam Swaps, Power Adders


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