Portsmouth Vehicle Performance

JKM are an authorised and highly experienced distributor of Revo Software and Hardware upgrades.

Revo produce market leading performance software and hardware tuning products for Turbo Petrol & Turbo Diesel models of the Volkswagen, Audi, Seat and Skoda Group, as well offer tuning options for Ford and Porsche.

You can call or email us with your registration number and we can provide you with all the information you need to know about remapping your vehicle or you can visit REVO’s website to check if a remap is available and the price, (you will need to add VAT @ 20% to the prices you see online)

Send us a Performance booking enquiry or call us on

Stand Alone ECU Tuning


The Emerald K6 engine management system handles full 3D mapping of both ignition and injection on normally-aspirated and forced induction engines. It is easily programmable and highly flexible to adapt to existing engine installations and sensors. These factors make the Emerald system a particularly good choice for people who wish to convert over to mapped ignition and/or fuel injection.

The K6 ECU is the most significant step forward for Emerald in ECU design, development and manufacture. The new firmware and software packages take Emerald into a realm where it can stand comparison with systems costing up to three times as much. For example the K6 has a CAN bus (Controller Area Network) and now links direct to the AIM dashboard.

For a full overview visit the Emerald website.

Emerald is one of our most popular stand alone ECU systems. Kate even has an Emerald ECU on her 1964 VW Notchback!


Link ECUs can be used on most petrol powered, internal combustion engines.

1, 2, 3, 4, 5, 6, 8, 10 and 12 cylinder engines can be supported by a Link Engine Management system, as well as 2, 3 and 4 Rotor engines. Manual transmissions are always supported, while some PlugIn models also support an automatic transmission

The ECU controls the engine of the car, including the fuel delivery and ignition timing. Opposed to a Factory ECU, which are generally ‘locked down’ and allow very little alteration to the factory settings, Link ECUs allow for modifications to the engine. These modifications could be directed towards gaining more power, altering fuel efficiency, or even making allowances for aftermarket modifications such as a turbocharger, which isn’t supported by the OEM ECU.

For a more information visit the Link website.

Syvecs (For VW, Audi, Seat, Skoda range)

Formed in 2007, Syvecs Ltd was born out of the desire to produce high end engine control solutions for road cars.Developed from technology used at the highest levels of motorsport, Syvecs ECUs provide the user with degrees of

control and function previously only available to the motorsport industry.

Syvecs products have been tailored to bring you these high end features combined with the flexibility more road-car biased stand alone ECUs offer.

To find out more, explore the Syvecs website

At JKM, we are running a Syvecs ECU on our performance Skoda Octavia VRS TSI running over 500bhp.

To talk to Jim regarding any of the Stand Alone ECU Tuning options we offer, please send us an email or complete the enquiry form with details of your vehicle, its current set up and what you wish to achieve. This is the best way to reach him as he is often on the dyno tuning so unable to come to the phone during normal working hours.

Hardware Modifications

At JKM we can offer a range of Performance Hardware modifications and enhancements to suit your vehicle, from Brake upgrades, Performance exhaust, Intercoolers and much more.

Listed below are just some of the companies whose products we can supply and fit:

If you are considering carrying out our performance enhancements to your VW, Audi, Seat or Skoda, drop us an email or call for a friendly chat to see how we can help.

Rolling Road

At JKM we house our rolling road in its own purpose built unit that contains special cooling and extraction systems.

Dyno Facts


What Our Customers Say

Phil B – Portsmouth

I have been using JKM for all my car servicing and repairs for over ten years. Although they specialise in VAG cars, they’re also good with other makes. Very trustworthy and honest about what needs doing. Better than VW on diagnosis and repair from my experience.

Mun Cheung – Portsmouth

These guys 100% know what they are doing. I usually come to these guys for the big bad problems that I can’t fix myself and they always come through for me. Looked after my Corrado G60 and now Audi S4 with care and attention. Super friendly and knowledgeable. Worth the money.



Modern engines are controlled by software installed on an Engine Control Unit (ECU), the ‘brains’ of the vehicle. Factory software is designed to give models consistency in performance, regardless of the country they are sold in, with power outputs segmented depending on the target customer, leaving lots of room for improvements.

All Revo performance Software is designed to safely enhance the driveability of your vehicle, giving access to more power and torque throughout the rev range while maintaining the extensive factory safety mechanisms.

Although Revo offers some of the most substantial performance increases on the market, peak figures form part of a much bigger picture and are never the sole focus during development. Revo Software offers a perfect balance of performance, economy, longevity and safety.

Development and testing of Revo performance software are done in a number of territories around the world, taking into account variations in atmospheric conditions such as altitude and temperature. The Revo R&D process is the most extensive and in-depth in the industry, giving you a product you can trust and an experience you won’t forget.

Most REVO software installations take approx an hour however some can take longer so it is best to check when booking.

You can call or email us with your registration number and we can provide you with all the information you need to know or you can visit REVO’s website to check if a remap is available and the price, (you will need to add VAT @ 20% to the prices you see online)