Who we are

We are a group of motor sport enthusiasts located in Cleveland, Ohio. Our passion for anything fast has led to our involvement in the automotive aftermarket industry. Over a decade of building cars with family, friends, and even some enemies has led us to this point. Our involvement with fuel injection tuning is a result of our needing quality service, and not being able to find it. The need for effective EFI tuning has led to my education and certification as a dyno tuner as well as the creation of Lethal Injection LLC.

What makes us better ?

Our commitment to the science of engine calibration, and the ability to show the scientific process when necessary.

How do you know you are getting the service your car deserves?

We are certified EFI tuners. Knowledge and experience are the corner stones of our business. EFI University has set the standard in fuel injection education. Our tuners have met the requirements of EFI University as defined by their EFI tuner certification program. You can count on Lethal Injection LLC to provide you with only the best possible tuning service.