Hi, I have a B8.5 S4 Avant and was wondering if these tune box`s are any good and also is there any detrimental issues to the car,currently have a Miltek and CTS intake,I understand an ECU remap such as APR etc is the way to go but very pricey,also this box is going for £254 at the moment so cheap to add a bit more fun to the car.
Thanks
https://www.tmcmotorsport.com/tuning-box-details/10109175
Thanks
https://www.tmcmotorsport.com/tuning-box-details/10109175