Traction Control. To some it's the holy grail of rider aids that lets you do no wrong, while to others it's nothing more than a Band-Aid for sloppy riding. In either case, traction control is now available in production form and via the aftermarket, and when we got word that Yoshimura's kit ECU for the GSX-R1000 included a form of the electronic aid, we just had to order a unit up to see for ourselves what all the fuss is about.
The EM Pro (Engine Management Professional) is a replacement black box available for Suzuki GSX-R models that can be used in conjunction with the stock wiring harness or a kit harness that opens up more options. In the GSX-R1000's case, using the kit harness changes the bike's S-DMS function to three degrees of traction control: none (A), soft (B) and hard (C). The system is not true TC in that front-wheel speed is not compared with rear-wheel speed to detect a loss of traction, but rather rpm is monitored and limited should a sudden spike occur (indicating a loss of traction at the rear wheel). Yoshimura's instruction manual calls it a safety mode-others refer to it as rate-of-change traction control-and this was the main feature of the box we were interested in.
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