My last car I had ( 2000 LS ) .. with I/H/E and other minor mods got up to 141mph or so... per the speedometer.But we all know how that could be off. Although I did have the correct size tires on so if anything was off it was just the factory speedometer itself.
I have yet to get above 125ish or so with the GS-R.
-Tri
( on track of course ) :naughty: