BSR PPC etc

Hi! since I am thinking of taking this step, I would ask you to share some of your experiences with me. I also try to squeeze out the German BSR dealers on extended warranty. I have to understand that one and the same box is offered by BSR in Germany at a wide variety of prices. Are all the same, or are there older versions at cheaper prices? Email Lexmaul Dear Ladies and Gentlemen, I am interested in the Volvo C30 T5 stage 1 tuning. That these devices are not produced by you is an open secret, but not why the device costs with them almost 50€ more than with BSR and with BSR is still a 2 year warranty….? How does the price difference come, are the boxes not identical to the construction, or something else not apparent changed? mfg ————— Many greetings