I rode down today to the new Blais Cycle facility. Last time I'd seen them they took off the Xtre because we thought it was the cause of an idle problem the bike was having. Removing the Xtre immediately fixed the problem and also increased my mpgs by more than ten. When they removed the xtre I was curious how it would affect the map they had made for it but didn't have time to do some dyno pulls that day. Today I had the opp. I was curious to see if removing the xtre affected it in any way or was'nt making a difference. The sales pitch on these is that they ADD POWER as in HP. I was also curious to see if two years and 10,000 more miles made any diffs in HP numbers. I rode approx an hour there. Bike sat for twenty minutes while we talked, then I went to get a sub on the bike and came back. Once back they put it right into their new Dyno room (see other thread here >>> https://www.hayabusa.org/forum/gene...cycle-facility-south-florida.html#post2790097 <<< for more pics of it) The first pull the bike made 183.45hp. We cleaned the filter and made another pull which was about 30 minutes later. 2nd dyno run it made 185.61. The dates on the sheets are 11/20/09 and 11/12/11. I had no intent on doing it like this but it just worked out to be that close to two years. Original run is in blue and todays runs are in red. I am comforted that it is almost exactly the same as it was in 2009. As far as the Xtre goes these are sold for two reasons, one is to remove the top speed limiter and the other is because it was supposed to add power. Up to 15 extra Hp on a Bking is advertised on their website. HealTech Electronics Ltd. - Makers of the SpeedoHealer, GIpro, X-TRE, FI Tuner Pro, OBD Tool . So now as far as a GenII Busa is concerned you can see it added zero. The first runs in 2009 were with the Xtre on and now today without it, within 1hp of each other. I think the addtl 2hp from cleaning the filter is real because bike was hotter than first run and it made more power.
