The CRTD4® QUAD-Channel Petrol Tuning Box for the Audi S7 4.0 TFSI Quattro 414 BHP / 420 PS / 309 KW / 550 NM / 406 LBFT from TDI-Tuning is at the cutting edge of digital tuning box technology and represents a revolution in vehicle remapping. With custom designed and engineered micro-processor architecture the CRTD4® Quad-Channel remaps vehicle performance moment to moment based on data received via the engine sensor interface harness. The engine fuelling profile of the vehicle is then altered to improve power and torque delivery whilst eliminating flat spots in individual gear acceleration arcs producing a smoother and more responsive drive experience.
For domestic vehicle owners, the CRTD4® Quad-Channel represents great value with its seven operation mode settings, allowing owners to adjust power and torque output between maximum economy and maximum power, perfect for switching between everyday driving and long-haul trips. Our CRTD4® range of products can also be reprogrammed for use in over 90% of other turbo Diesel and Petrol vehicles, meaning you can change your vehicle often as you want safe in the knowledge your CRTD4® can likely be used again.
The UK’s leading tuning box just got better! Now with Bluetooth capabilities the CRTD4 tuning box brings the benefits of tuning to your fingertips.
Now you can control the performance of your engine from the comfort of your driver’s seat with the TDI Tuning App. Connect to your tuning box and enjoy total control, transforming your driving experience.
Turn the tuning box on/off using the TDI-Tuning Mobile app. With a touch of a button you can turn your TDI-Tuning Box on, harnessing the full power capabilities of your engine. Or, you can turn it off, reverting the vehicle to stock.
With the TDI-Tuning App adjusting the power output is easy. Simply connect your phone to the TDI-Tuning Box and toggle between the 7 power modes at your disposal. Mode 1 offers the least amount of power, and, is commonly used for fuel saving reasons. Mode 7 is the biggest power increase you have on offer, use it for maximum power!
The TDI-Tuning Box comes built in with a 30 second warm up timer. This means the map file will not begin to run until 30 seconds after your engine is turned on. This is to protect your engine, primarily for cold engine starts. If you would like to increase, or decrease this map timer, you can adjust it using the TDI-Tuning App.
Activate ‘Discreet Mode’ on the mobile app to turn off the LED lights on the TDI-Tuning Box. All lights will be turned off, putting the tuning box into ‘Discreet Mode’. You can use this mode if you are trying to conceal the tuning box from casual inspection in the engine bay.
Connect with other tuners throughout the world on our social networks. Contact our team directly through the app using one of our social media or web chat channels.
TDI Tuning digital tuning boxes come pre-programmed for your engine - you just plug it in, secure it with the supplied cable ties and drive off to enjoy an immediate and significant increase in performance.
Tuning boxes come complete with fitting instructions, TDI Tuning also have step-by-step fitting videos available for many of our most popular vehicles.
If you need an expert to help you with your fitting then a TDI Tuning engineer is only a phone call away.
Connect with
your vehicle
Connect & control from your phone
Turn the tuning box on/off using the TDI-Tuning Mobile app. With a touch of a button you can turn your TDI-Tuning Box on, harnessing the full power capabilities of your engine. Or, you can turn it off, reverting the vehicle to stock.
With the TDI-Tuning App adjusting the power output is easy. Simply connect your phone to the TDI-Tuning Box and toggle between the 7 power modes at your disposal. Mode 1 offers the least amount of power, and, is commonly used for fuel saving reasons. Mode 7 is the biggest power increase you have on offer, use it for maximum power!
The TDI-Tuning Box comes built in with a 30 second warm up timer. This means the map file will not begin to run until 30 seconds after your engine is turned on. This is to protect your engine, primarily for cold engine starts. If you would like to increase, or decrease this map timer, you can adjust it using the TDI-Tuning App.
Activate ‘Discreet Mode’ on the mobile app to turn off the LED lights on the TDI-Tuning Box. All lights will be turned off, putting the tuning box into ‘Discreet Mode’. You can use this mode if you are trying to conceal the tuning box from casual inspection in the engine bay.
Connect with other tuners throughout the world on our social networks. Contact our team directly through the app using one of our social media or web chat channels.
