ABOUT US – Rommies Auto Tuning

R.A.T was founded in June 2020 by the owner and current Technical Director Llewellyn Duvenhage.

Rommies Auto Tuning (RATSA) is an ECU Remapping and Performance Tuning company based in Johannesburg, South Africa. 

Llewellyn (known as Rommies) has been a massive car enthusiast (petrolhead) all his life. His passion for the automotive industry is what drove him to start Rommies Auto Tuning (RATSA). He is a humble and genuine person and is a pleasure to do business with.

Rommies Auto Tuning (RATSA) has since grown into a strong competitive tuning company in the local South African market.

— Llewellyn Duvenhage, Founder of RATSA


To offer high quality workmanship with excellent customer care




Can you come to me?

Absolutely! Keeping up with the times of 2020 our setup is fully mobile, and we can assist clients with ECU remapping and related services from the comfort of your own home.

Can you assist me with hardware?

Yes, we provide hardware upgrades and services at the lowest possible pricing due to our partnerships and suppliers. Bundle your ECU Remapping Software with our Motor Performance Hardware Upgrades to beat any prices around for the very peak of quality.

Can you revert my car back to stock?

Before we do any work on your car, your stock software map is downloaded and stored on a secure, private, remote-based storage solution. If at any point you want to return your car back to normal we can assist you.