The only definitive way to get the most from any engine modifications you have made (such as air intake systems, exhaust systems, camshafts, supercharger, turbo etc) is to have the electronic control unit (ECU) in your car professionally tuned/mapped on a dyno with a Hondata engine management system. 

Hondata systems modify the standard Honda engine computers (ECUs), adding features and expanding the capabilities of the stock ECU. Vehicles with year of manufacture up to and including 2006 models require the ECU to be modified and in most cases hardware is added, for vehicles of years 2007 and onwards tuning takes place via an external programming interface. In all cases Hondata software is utilised in order to change the parameters/settings within the ECU (i.e. to tune the car). 

Hondata S300

  • • Fits inside the ECU • Built in data-logging to a laptop • Adjustment for different sized injectors, with overall fuel trim • Configurable for any MAP sensor (to 5 Bar and above) • TPS based table lookup for ITBs • Engine protection from over boost and lean protection • Expanded fuel and ignition tables, both in rpm and load, to 60 lbs boost and 11,000 rpm (these are not the upper limits) • Three multi-purpose outputs for nitrous control or similar • PWM output for boost control In addition the new version of the S300 now on sale with immediate effect (version 3) has the following features: - Bluetooth - Mobile device compatibility - Ethanol sensor compatibility, - Aftermarket dash Compatibility - Serial output - CAN output