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@Airhead
@Snoops I am interested. Just looking at getting a GS-911 to read the service information/reset the faults etc. The Booster Plug I have works by fooling the ecu into reading the air temp 10 degrees lower making it run richer. It smooths out the power delivery when you're twisting the throttle but doesn't work so well at steady rpms. The reason they affect acceleration not MPG from steady rpms is the open/closed ecu system. The system is only 'open' when you are making significant changes with the throttle and the ecu takes time to keep up with the readings from the O2 sensor. At steady rpms the O2 sensor bosses the rest of the inputs. You can get a kit to fool the 02 sensor and set a richer target for the ecu.
@ Jung. I totally agree, the aftermarket is dying because the manufacturers jump through all the legislative loops that change every few years then change the technology and rely on customers upgrading more frequently. They can't afford to be interested in longevity. I must be getting old because the golden age in my mind is the big 2 stroke era, and they've been forced out of production by emission rules. It's why I've held onto the TZR, memories!