I have a FG XR6T, my brother has an F6, so I have picked them to pieces. IMO the F6 looks HOT!. But 20k more. That could buy a lot of boost gauges. If you want looks F6. If you want power FG XR6T. (spend the difference on mods) Capa flash box, can pick up for around $300 to $400 Custom Tune. (depends on tuner) aprox $300 $600-$700... 300+ rwkw from stock FG XR6T, Also as for rev limiter chime, Its better to change gears before it reaches the limit as your power in most cases will be bleeding off before you hit it. That should solve that problem. Just my 20 cents... Enjoy