G-Pack
Nikko Racing have developed a range of electronic modules which work on the ignition and injection systems to effectively ‘derestrict’ certain motorcycles.

The G-Pack modules remove the in-built factory restrictions within the electronic systems, which are put there principally to help comply with noise regulations, as well as softening the power delivery of some of the faster models. These effectively prevent these bikes from reaching their maximum performance potential.

The G-Pack OVER 3 module works in the same way but also eliminates the 300 kph electronic speed limiter installed by the manufacturer. It is currently only available for GSX-R 1000, GSX-R 1300 Hayabusa and ZX-12R models, but will no doubt be available for other monsters as the bikes become available.

Example
For GSX-R 1000, G-Pack OVER 3 is active at two levels, on second gear between 1900 and 10200 rpm and on the third gear between 1600 and 10200 rpm to ensure lightning acceleration; on fifth and sixth gear to eliminate the 300 km/h speed limiter; rpm increases from 12300 to 12800. It operates simultaneously on ignition advance, injection, the movement of the second flapper valve and the exhaust valve.

This is a breakthrough product and is not the same as the cheaper resistor type products, which fool the bike into thinking it is in fifth gear at all times. The problem with these, is that the bike isn’t necessarily in fifth gear. Why? Well if the bike is revving at 12000RPM and it thinks it is in fifth it will adjust the fuelling to suit a 150MPH or so air charge coming into the air box. If it is actually in second then it’s not travelling at 150MPH, then this adjustment will be incorrect, causing the bike to run rich and hence excessively rough! Additionally, most Suzukis have a separate default map for Neutral. This is used both in Neutral or in gear when the clutch is pulled in. Why? Because it uses a lower rev limit to prevent over revving when there is no load on the engine! If the bike still thinks it is in fifth it will not default to the neutral map and will allow you to over rev the engine – potentially causing much mechanical damage.
G-Pack is a far more sophisticated product and only affects the areas of RPM required and leaves the other areas untouched.

They come pre-wired ready to fit straight into your wiring loom and with modern wiring looms using different shape connectors for every connection, it is practically impossible to get it wrong. It takes only minutes to install and needs no other adjustments or modifications. They are now sold extensively in Europe and the US, are fitted as standard to all bikes in the German GSXR cup and are used by the race winning Zongshen world endurance team.

Please note that this product is sold for race use only on closed race tracks and is not for road use.