Has anyone been through a significant PUMA case with the COBB? I'm seriously considering moving to it but am questioning just how invisible it is. With a JB4, I understand that it is literally invisible to the dealer and BMW NA because the ECU never actually sees boost values or data outside of the normal range. Even if there is an uneraseable ROM or un-clearable code, there would be nothing suspicious to see since the JB4 would intercept the ECU signals and make everything appear normal to the black box. With an ECU flash, this may not be the case - even if there is a flash counter and the ECU logs that it's been flashed not at a dealer, that may be cause for a warranty void.
Has anyone actually been through a PUMA case for something like turbo replacement or injector replacement with the COBB in?