how much did they charge you?
I think it was about £300 so similar cost to just a PC3, and cheaper than PC3 plus remap.
On ZZR I started with map from Dynojet website which was better than stock, and required as I had removed secondary butterflies which limited early bike to about 10% throttle below 6k in lower gears! without a PC3 this mod would probably burn out valves.
I later had a custom map done for PC3 (@ £150) before removing it and having stock ECU remapped for about £300 - can't remember exact amout as I had tyres fitted at the same time and did a deal on all the work.
Would be interested to hear if anyone here has had this work done, you can not beat a reliable recommendation IMO, certainly PC3's do work but they are very primitive and just adjust injector duration aftert the event.
I was shocked to learn that they do not even know the throttle position but estimate it from the injector signals they intercept (they plug inline with the injector wires)
What led me to ditch the PC3 was the fact that ZZR fuelling is very different in each gear, as in 1st full throttle is not avaliable until 6k, but in top would be available from about 5k, with more progressive opening from 3.5k, this meant the PC3 fuelling would only be good in the gear used for the dyno work (typically 4th) and would be a bit rich in 5th / top and a bit weak in 1st - 4th at the revs you typically use.
Also fours tend to run quite different on inner cylinders and again the ECU remap allowed for trimming each cylinder independantly, not really an issue on a GS.
The worst thing with this method is you cannot "see" what has been done, with the PC3 you can look at you map on your home computer and have a copy on file of what has been done, the ECU remap is very much a blind faith type of thing as the bike goes into the dyno room, comes out four hours later and looks no different, has no new parts and you have nothing to show your mates on your PC screen.
Obviously got dyno curves of before and after showing some nice improvements and the bike felt smoother afterwards, the Dyno they run is also much more sophisticated than the DJ ones:
Also unlike the DJ ones it did not touch the rear tyres, in fact he did not even strap the back end down, you can check out the dyno here:
http://www.dynapro.ws/
It also gives real horsepower and torque in real time (Dynojet Dyno's are software based and cannot really measure power and torque accurately) Check out the PDF's from a magazine interview with dynojet where they admit they could not figure out what a horsepower was!
http://www.dynapro.ws/true_hp.htm
In fact DJ power was based upon dynojet assuming a US Spec 1985 V-MAX had 125BHP (they had about 100 - see the flaw in the plan!) They later revised their own version of 1 BHP but have never found an accurate way of measuring horesepower - I just can't believe they admitted this in an interview!!!
I have posted a far more techy article as well
http://www.ukgser.com/forums/showthread.php?p=2571692#post2571692
