I think it comes down to how much risk you want to take and how much power you want to squeeze out of your car. Carbahn is on the conservative side. They have a platform that is locked in after they are done with development. Think Android vs Apple. Android is more open, but is also prone to more bugs in the software if the person developing it messes up.
As for warranty, I don't have any personal experience dealing with them yet, but I had a Dinan tune on my 2 series and they were great at fixing the issue I had by working directly with the dealer at no cost to me.
Let's see what Dinan comes up with, but Carbahn is my choice for a safe, warrantied tune for now.
|