07887 958555
Mon to Fri: 09:00 am to 05:00 pm
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ECU Performance Tuning
Chelmsford

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About Us

A Bit about us

Welcome to JJ Tuning, your leading destination for vehicle performance enhancements in Chelmsford, Essex.
With an unwavering commitment to excellence, we utilise only the most advanced, industry-leading tools to deliver bespoke performance and economy remapping solutions. Each service is meticulously tailored to meet your specific requirements, ensuring an exceptional level of quality and satisfaction.

  • Performance ECU Remaps (Stage 1, Stage 2)

  • Economy (Fuel Saving) Remaps

  • DTC Solutions

  • DPF Solutions

  • EGR Solutions

  • Adblue Solutions

Trust JJ Tuning to take your vehicle's performance to the next stage.
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What Our Clients Say

Testimonials

Skoda Fabia - Very pleased the outcome, car performs extremely well now. Would definitely recommend.
Callum - Essex
I recently took my BMW 120d to JJ TUNING for a Stage 1 remap, along with DPF and EGR solutions. During the initial vehicle health check, the team discovered a significant coolant leak originating from the temperature sensor. They promptly fixed the leak before proceeding with the tuning work I had scheduled. The attention to detail and thoroughness displayed by JJ TUNING were truly impressive. My car now performs better than ever, and I couldn’t be happier with the service provided. Highly recommended!
Jay - Chelmsford
I recently brought my BMW 118d to JJ TUNING due to a blocked DPF. The team provided exceptional service, addressing the DPF issue along with EGR solutions and a Stage 1 remap. These BMWs truly benefit from a remap, and I was thrilled with the impressive gains in performance. The expertise and professionalism at JJ TUNING exceeded my expectations, and my car now runs better than ever.
Carl - Witham
Took my Ford Transit to JJ TUNING for the removal of the speed limiter. The team did an excellent job, and I am no longer restricted to 68mph on the motorways. The entire process was smooth and professional.
Chris - Essex

Vehicle Performance Lookup

Check Your Stats

Check your vehicles potential

Find out what your car can truly do with our performance stats tool. Select your make, model, engine & year and we'll show you what the potential in your vehicle thats waiting to be unlocked with JJ Tuning.

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07887 958555

We work by appointment only. Please fill in the form to contact us and we will aim to call you back the next working day. Or if you would prefer, feel free to call us directly to arrange an appointment.

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