ADAPTIVE TUNING MODULE

A module that plugs into the engine's sensor connectors and modifies the signals reaching the ECU, so the engine produces more power and torque without the ECU software being changed. It is fitted in minutes and removed in minutes.

No, and anyone telling you otherwise is selling something. A remap changes the actual calibration and can be tailored to your car, its condition and its hardware. A box works around the ECU rather than with it, so the result is cruder and the gain is smaller.

When you want something you can remove completely before a dealer visit or before selling the car, when the vehicle is leased or on a contract that forbids software changes, or when the ECU cannot currently be written. Those are real situations and the box is a genuine answer to them.

A reputable one fitted correctly will not. The risk with cheap boxes is that they simply raise fuel pressure or boost without regard to what else is happening, which is exactly what a properly written file avoids. We fit Speed-Buster because it is one of the better ones.

They can find the module if they look, because it is physically there. What they will not find is any change to the ECU software, which is the difference people care about. Remove it and the car is exactly as it left the factory.

Tell us the car and why you are asking. If you own it outright and want the most from it, a remap. If you need to hand it back at the end of a lease, a box. We sell both and we will tell you which fits your situation rather than which has the better margin.

Yes. Warranty plans are available to buy separately: see our warranty page. Every remap also comes with lifetime software support.

Motorsport-exclusive components are explicitly designed for track use. While they can be installed on any vehicle, it’s important to note that using such parts renders the vehicle unsuitable for road use and may result in MOT failure.

No! Our remaps are designed specifically to improve the performance of your vehicle whilst remaining within the tolerances of your vehicles’ components.

Sadly, in attempt to achieve ‘big numbers’ some other companies over tune engines, placing excessive stress on the engine, transmission, cooling systems, etc, leading to reduced life span and reliability of the vehicle. We pride ourselves in producing reliable remaps which do not over stress your vehicle but still produce impressive results.

In any case where a customer is dissatisfied with any remap software covered by the guarantee, within thirty days of the supply date, the customer can request their money back. In order for any refund to be processed, the customer must present their vehicle to our workshop and allow our technicians to restore the vehicle to its original state. On successful completion JF Automotive will refund the cost of the remap to the customer.

No refund can be granted unless the vehicle is returned to the original state by JF Automotive. The 30-day money back guarantee covers Stage 1 remaps, EGR, DPF and AdBlue software deletes, gearbox tuning (not BMW xHP) and economy remaps. It does not cover Stage 2, Stage 3, pops and bangs, xHP gearbox tuning, parts (including plug-in modules such as the Speed-Buster) or dyno sessions.
If another modification is purchased alongside a tuning file, which relies on a remap to operate, only the cost of the file is covered by this guarantee. We reserve the right to withdraw this 30 day money back guarantee.

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Absolutely. We offer this service free of charge if the vehicle is brought back to us. We’ll be very surprised if that’s what you want after taking one of our remap products, however in the case of lease cars some customers prefer to put the car back to standard before returning the car. You might want it back to standard if you are visiting a dealer for warranty or service work, again we will do this for free. Should you lose your tuning files due to dealer actions or parts failure we will be happy to re-install the map onto your car free of charge where possible.

No problem, simply bring the vehicle back in and we will take a fresh read of your ECU and write you a new map file free of charge. We offer this as part of our lifetime software support.

Whilst the remap is undetectable to dealer equipment, you should notify your insurance company of any modification to your vehicle. Many insurance companies do not penalise you for upgrades of this nature, particularly if you’re tuning for increased economy however a failure to disclose modifications may invalidate your policy. You may wish to enquire with your insurer if the modification will affect your policy prior to choosing one of our services.

We get asked, “Why do some tuners charge as little as £150?” There are a few factors as to why we do not offer remapping for £100-£200!

We supply custom written files for each vehicle that we remap that take in to account condition, milage and customer request of each vehicle. Our services are fully insured with a 30-day money back guarantee and lifetime support for the tuning software supplied. We constantly invest in the most up to date tuning and diagnostic equipment and software and we offer a quality service to all our customers.

Overall our custom supplied tuning software is of the highest standard that we know of, so if you want the best of the best, choose JF Automotive.