Prospeed stage 3 ECU ROM tune, see the link for details.
http://www.nsxprime.com/forums/showthread.php?t=96360&highlight=Prospeed+stage+3
Only $190.00 + shipping!!! Ready for pickup/shipping from Irvine, CA.
http://www.nsxprime.com/forums/showthread.php?t=96360&highlight=Prospeed+stage+3
Only $190.00 + shipping!!! Ready for pickup/shipping from Irvine, CA.