Tweo other options...Nissan sells different drive gears for the speedo sensor...this would slow the pulses down...I have been told that this would not be a legal mod (Aaron in Denver) I would never protest you for it though. I don't understand the reasoning here other than the GCR doesn't specifically allow you to change the gear...

Another option...much less than the JWT ECU...Call Keith Goldin..305-275-0365...He has been messing with a few ECU's and told me last weekend that he has been able to move the RPM limit and remove the speed limiter on these cars..

hope this helps..

Jim