So what exactly is a diesel tuning box? Quite simply it's a device which can be installed by you easily within the engine bay resulting in more engine power, torque and fuel saving improvements. All of our tuning boxes connect to the fuel injection system and work with the engines ECU (Engine Control Unit) to modify the engines fuel injection parameters, this results in an impressive gain in power, torque and fuel savings. Our tuning boxes utilise a piggy back style of installation which means they plug into the engines existing wiring without the need to cut any wires. The tools you'll need for installation are extremely basic; typically a screw driver is all you need. All of our systems are supplied with full easy to follow pictorial English installation instructions, 24/7 dedicated customer support, a full 14 Day Money Back Guarantee and a 3 Year Warranty for peace of mind.

So why can you increase power of your vehicle by such an impressive margin? Everyone drives differently and puts there vehicle under different loads and within different environments. For example some people drive on a motorway in a higher gear whilst others just do a short trip to the school or supermarket and back with one passenger or 4. All these variables mean that the vehicle manufacturer needs to factor in a degree of tolerance so the engine isn't stressed in any way no matter what the condition. Normally this is a large tolerance with leaves room for us to tap into the engines potential hidden power capabilities.

Some inferior diesel tuning boxes have given the industry a bad name in recent years. These crude devices which only give static signals to the engine resulting in erratic engine behaviour. We only sell genuine electronic circuit systems with micro processors. All the tuning boxes we sell are adjustable, whether this is by a potentiometer screw or jumper pin adjustment. All our tuning boxes come preconfigured for the maximum power increases possible whilst maintaining a safe level and ensuring all your vehicles safe features are kept in full control at all times.

The power figures we quote for a tuning box are typical power and torque gains which we have documented over years of installations and rolling road tests. These are not 100% accurate and are to be used as a rough guide only.

A diesel tuning box from TDI Tuning increases the torque of your vehicle significantly increasing your ability to tow whether it be a caravan, boat, horse box or trailer. We appreciate that many vehicles do not produce enough low to mid range torque which is especially important for towing applications. Coming from a team with many years of experience in towing we fully appreciate just how daunting pulling away, those long motorway climbs and overtaking in an underpowered vehicle can be.

We're often asked whether an ECU remap is the better route when looking for increased vehicle performance. Whilst a remap may yield similar power and torque figures we believe the benefits of a tuning box outweigh this. All our tuning boxes are setup for your vehicle so you know you're getting an impressive power increase for your money whilst bearing in mind that a tuning box from us can be over 50% cheaper than a standard remap.

The beauty of a tuning box is that it can be removed at any time reverting your vehicle to its standard setup; this is a great advantage for customers with vehicles still under the manufactures warranty. You also have the added luxury of being able to sell your unit in the future if you wish and recoup some costs from the unit. Our CRTD2 systems are flash upgradable as well which means you can have your system upgraded to the latest software and use it on your next vehicle in the future rather than paying for another remap down the line. These are things you can't achieve with a remap.

A question we're often asked is how can a tuning box save me fuel and therefore money?

All modern diesel engines run underpowered; this is due to a wide range of variables factored in by the vehicle manufacturers such as:

• Driving conditions
• Driving Style
• Vehicle Models (many manufactures produce multiple models of a vehicle with different power ratings, in many cases these are the same engines simply with revised ECU software to increase or decrease the engines power or fuel economy characteristics)
• Climate
• Fuel quality
• Taxation system specific to country

Typically these tolerances factored in by the manufacturer are very generous and leave room for improvement by us. If an engine is more powerful and capable of carrying out its task easier then it's deemed more efficient. This is what happens when a tuning box is installed, the increased bhp and torque that the engine has means you'll change gear less and generally the engine will be able to do its job easier. Subsequently the engine will inject less fuel overall and end up paying for itself in due course and thereby saving you money.

TDI Tuning have years of experience within the automotive industry with key exposure to engine control systems and fuel injection technologies.

Today we work closely with key electronic designers both here in the UK and Germany to bring you the latest technology and quality standards.

We cater for all budgets from our highly competivily priced CRTD Box up to the CRTD2 which is a 32 fuel mapped micro processor flash upgradable system. These developments in fuel injection technology mean you'll gain more power, torque and minimise CO2 emissions.

A car can be one of the largest financial expenditures anyone can make. Naturally there can be concerns over whether an aftermarket device such as a diesel tuning box is safe.

All our tuning boxes are extensively tested to ensure they are designed and built to our own very exacting high standards. The full TDI Tuning diesel tuning box range sits behind the vehicles ECU (Engine Control Unit), this means the ECU is always in full control of the engine and is designed to prevent any form of damage occurring. We are familiar with all major vehicle brands and models on the road today; because we have this crucial experience within our market sector we know the optimum settings for your exact vehicle. This ensures you get the most power from your diesel vehicle safely.

We are often asked if these systems affect the manufactures warranty. This will depend on the manufacture, dealer or who you purchased the vehicle from however, one of the key benefits of a tuning box from TDI Tuning is that you can remove the system at any time reverting the vehicle to factory standard if required. This will allow you to have essential maintenance or servicing work carried out in the knowledge that your vehicle is completely standard.