[OzriderXR8]

All great suggestions but all have a heap of conflicting info re benefits.

I've chipped a couple of bikes and you get the performance but usually at the expense of fuel. No real performance, just different fuel mapping.

If I change the diff ratio I get better acceleration but loose cruising economy.

I guess I'm looking for the old style carb type thing with 2 barrels until you put your foot down and open the secondaries. Vtec style....