TDI Tuning CRTD4 Uni Channel Tuning Box Swift Sport ZC33S K14C 2018+


TDI - Tuning CRTD4 Uni Channel Tuning Box

Suzuki Swift Sport ZC33S 2018+

K14C 1.4T Boosterjet Engine


Cutting Edge Performance Tuning

The CRTD4® Petrol Tuning Box for the Suzuki Swift 1.4 Boosterjet 138 BHP / 140 PS / 103 KW / 230 NM / 170 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® 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, creating a smoother and more responsive drive experience. 

Power Before 140PS and After 175PS

Torque Before 230NM and After 283NM

Fuel Efficiency Increase up to 20%


We've developed 7 versions of our unique engine map for your exact vehicle to ensure you find the best program to suit your driving style.


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.