Frequently asked questions

Every GAN is designed and programmed for a particular engine. The GAN GA and GAN GA+ are equipped with a universal OBD-II connector, whereas for the GAN GT and GAN GTL we use OEM cables, which match the sensors in your particular car.

The GAN GT and GAN GTL are placed between the ECU and the engine sensors. They optimise data from the sensors according to the engine operating mode and GAN driving mode selected. This leads to both enhanced performance and fuel savings.

The GAN GA and GAN GA+ are plugged into your car’s OBD-II connector, through which they communicate with the vehicle’s engine control unit. The tuning module is able to correct the ignition timing and the quality of the fuel–air mixture in real time, thereby achieving an increase in performance and fuel savings.

Several tuning module manufacturers use a similar system. GAN is a combination of well-balanced software and a wide range of set-ups. GAN modules for turbocharged engines have a moisture-resistant aluminium housing (IP67 rated). The smartphone app (GAN GT, GAN GTL and GAN GA+) allows you to fine-tune GAN to a particular vehicle, without having to open the housing. GAN modules have preconfigured driving modes: five on the GAN GT, four on the GAN GTL, three on the GAN GA+ and one on the GAN GA. The housings are made of aluminium; the GAN GTL housing also has carbon parts.

GAN devices are designed for cars with naturally aspirated engines, common-rail diesel engines and turbocharged petrol engines. If your vehicle is not listed in our database, please contact our customer service department as we might be currently developing or testing the program for your vehicle.

Yes. The GAN GT and GAN GA+ come with five free tuning files and the GAN GTL and GAN GA with two, for any vehicle available in our database. If you switch vehicles, you can reprogram your GAN for the new one. In the case of turbocharged engines, you may need to purchase another cable since different vehicles are equipped with different sensors.

Yes. If driving behaviour is adapted, GAN can reduce fuel consumption. The increased torque – primarily at low and medium rpm ranges – and faster upshifts result in higher speed at lower rpm and therefore fuel economy.

No. GAN modules are not designed to increase the Vmax limit. In most countries, maximum speed is regulated electronically and by law.

Since GAN products for turbocharged engines are installed under the car bonnet, they are moisture-resistant and IP67 rated, which means they are capable of withstanding water immersion. Such protection is rare among tuning modules.

Since GAN products for naturally aspirated engines are installed inside the vehicle, they don’t require moisture protection.

Yes, if the car is designed to run on biofuel.

In most cases, GAN products are designed for self-installation, which takes no more than 15 minutes. Technical skills or knowledge are not required. You will find a video installation guide on our website. Installation in some turbocharged vehicles may take more than 15 minutes as the sensors can be difficult to reach.

No, special tools are not needed. Sometimes, some parts need to be disassembled in order to reach the sensors. In this case, please contact our technical support team at support@gantuning.com, and we will help you with installation.

GAN products for turbocharged engines are installed under the car bonnet. The module should not be connected too close to hot or vibrating components and pipes. The GAN cable should be attached to the cable harness under the car bonnet.

If you can’t find the necessary sensor, you can send us pictures of your engine so that we can show you where to install it.

Yes. We have a database full of installation pictures for various cars. Our technical support team will send you all the necessary photos upon request.

Please contact our technical support representatives.

Yes. The transmission control unit notes the increase in torque by GAN and shifts into the necessary gear to match this torque. This means you can reduce fuel consumption by adapting your driving behaviour.

You can download the GAN app for your smartphone from Google Play (Android) and the App Store (Apple) for free. Just type GAN in the search box.

You can pay for your order by Visa or MasterCard, or with PayPal.

Free shipping in Germany by DHL. You can calculate the cost of shipping to your country yourself on our website. When importing to countries outside the EU, additional fees may apply at the customs of the respective country for which we are not responsible.

We cooperate with courier companies such as DHL and DPD. Our logistics team will choose the fastest delivery option.

Every customer has a trial period of 50 days in which to test all of our GAN devices. If you are not satisfied with the result, we will give you a full refund, excluding delivery costs. All you need to do is:

– Inform a member of staff of your intention to return the kit within 50 days by calling +49 30 3187 98 28 or emailing support@gantuning.com.

– Return the kit by courier service.

– Upon receipt of the kit, we will check to see if it is complete and free from any mechanical damage. We will then transfer the money to your bank account within 10 calendar days.

If these requirements are not met, we have the right to refuse the refund in full or in part.

Thank you for your understanding.

The warranty period depends on the type of device: GAN GA – 2 years, GAN GTL – 3 years, GAN GA+ and GAN GT – 5 years.

A more powerful engine automatically puts extra strain on some car components, such as the transmission and chassis. However, engines and transmissions are designed with a two- to fourfold safety margin. Since GAN increases torque only when needed (e.g. when overtaking or accelerating), the strain is short term. In most cases, a power increase occurs in the medium rpm range without reaching the power limit. All modern engines have a safety system that monitors critical engine modes and reduces power when needed, thereby protecting against overload. Since GAN modules don’t turn off this function, the engine’s factory protection remains active. If used properly, GAN does not affect the engine’s lifetime.

Yes, we offer an additional engine warranty of up to 2 years and up to EUR 5,000. The warranty period and amount depend on the type of device: the engine warranty is available for the GAN GT (2 years, up to EUR 5,000), GAN GA+ (2 years, up to EUR 3,000) and GAN GTL (1 year, up to EUR 3,000). To apply, complete the online registration form within 14 days of purchase. If your application is approved, you will receive the corresponding certificate.

Yes. GAN modules are designed and tested so that they can be used on vehicles equipped with diesel particulate filters (DPFs).

No. GAN does not change the factory ECU software, and nothing is written to the ECU memory. Before a visit to a service centre, simply remove the device: the car returns to its factory condition, with no electronic or mechanical traces, and your car’s factory warranty is preserved.

GAN modules are fully functional at temperatures ranging from −40 °C to +125 °C. They function properly in Asia and Africa as well as in Nordic countries such as Norway.

If your vehicle was manufactured after 2000 and you can’t find it in our database, please contact our customer service department (by phone or email).