Thing is fueling is the most commonly over looked and easiest modifcation for in some case big gains..regardless of whether you trackday, ride flat out or just ride for fun having a bike that you know runs the best it can in terms of performance and smoothness its a no brainer. Its amazing how often its overlooked and not considered..
and before anyone says it..yes the SV650 is worth it!.
I know its not an SV but the best one we have seen is on an S1000RR, fitted with an exhaust and downloaded PC5 map..guy said it was running great but just wanted to get it checked...ran it 172.32bhp rich as hell right through from idle..then ok and then rich as hell again...remapped it end result 197.9bhp.. A gain of 25.5bhp for £180...
Just goes to show until you check you dont know what your missing out on!
Chart is here:
http://www.stevejordanmotorcycles.co.uk/dyno.asp