Quote:
Originally Posted by baron95
My issue with the JB4 is how ancient and backwards their HW is. I mean come-on it is 2023. They keep on selling stuff that you have to open the box and use 1970s DB9 connectors to add Bluetooth, plus it uses really old/slow processors.
All the other companies that offer piggyback "tunning" (Dahler, Carbhan, etc) all chose to license and rebrand the Racechip HW. It is a modern sealed box, with built-in bluetooth, a map display (if you want to not even bother with a phone app), an awesome bypass connector to take to the dealer and/or remove the Racechip, much higher quality connectors, etc.
JB4 seems to do the job - I don't want to disparage them. But come-on. Move with the times. Have some pride in your product and upgrade the HW to 2023 standards.
Also, Racechip is offering a 2 year (I believe up to $10K) matching warranty if your engine has issues that are denied by BMW.
I choose to support them.
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If Carbahn and Dahler are using a rebranded version of Racechip, why do they have different torque curves and horsepower levels? I watched a video by a YouTuber WhatsyourForte and the racechip seemed to be way smoother than JB4 and Dahler made the most power by a considerable margin