Increasing the boost is the easiest, quickest and best way to greatly improve power output, torque and acceleration, without sacrificing drivability and fuel economy. From 6psi (factory standard) Boost Pulley's are available in to Increase Boost to 10psi Safely and can be installed without having to remove the supercharger!
Without a doubt, this will give you a greater power and torque increase per dollar than any other modification!
This takes your engine from the standard 171kW to over 200kW straight out of the box if you have upgraded your exhaust system as well !!
More info can be found here:
http://www.v6supercharged.com.au/pulley.asp
Hope this helps.
Regards
Tonsta