Not that I have heard of. I think the only options are the AEM, other standalones or an ECU upgrade such as G-force. All of these options are not cheap. I personally think its crazy that we can't get a raised rev limiter for less than $700-$800.
I wish someone could make a piggy back unit that can disable the standard rev-limit on the lines of the BCC just for 100 bucks..... I have a Bee- Racing ignition cut Rev-Limiter which I can substitute it with.. which is adjustable to any rev-range upto 9k.
It would be great to use such a unit with the bigger turbos.