Red lining question.

I have an 03 v6 auto with CAI,magnaflow true dual H-Pipe and a 91 bama race tune on. I was coming home tonight and accelerated pretty hard getting onto the freeway and before i know it i look down and im at about 6k RPM's. I know my car red lines at about 5400 RPM's. Im pretty sure thats the first time ive ever red lined as i thought i'd really floor it this one time, so i was just wondering if any kind of dammage would really be done from that? My guess would be no because its just that one time, but it's probably not a good idea to do that often. Am i correct? And i was wondering if there would be a rev limiter here, and if anyone knows what that is for this type of build. Thanks.