Anyone use one of these? was it easy to install ?cant find any instuctions online.Does it do anything else besides remove top speed restriction?
Does it give anymore performance in the lower gears?

I know this has probably been asked before but any links to install info is not working on here.

There are 3 different de-restrictors out there for our bikes, one is by Nikko (G-Pack), 2nd one is by Muzzy (Bonneville box) and the last one is Ivan’s Performance Products (Timing Retard Eliminator)...not sure they do what they claim, can't find much info online on them...just couple of posts mentioned there are such products exists. I like to know more about them with some hard copy proof of what they claim.....maybe the reason these products are not that popular is no one will open up to 186 MPH on their bikes on the road.....I know I won't, I am sure our bikes can do well over 150 without trying hard.....:-)

I am sure its easy to install, couple of plugs and zip tie to the rest of the wires and you are good to go!

i use the bonneville box on my 01. it works. you can do 150mph in 3rd gear on a bone stock 12

I have a almost stock 01 and I think 150 in 3rd is pretty normal isnt it? How would the bonneville box make this better?

its very normal. thats why i said you can do it with a stock bike.... bldragon said I am sure our bikes can do well over 150 without trying hard and I said, yes in 3rd

b box has nothing to do with it. (why i said stock bike) the b box removes the lower rev limit in 6th gear on the 01-03 zx12r. I think the normal rev limit is around 10500 rpm in 6th and 11600 in every other gear. the 2000 was the unrestricted version, and had 11600rpm rev limit in all 6 gears. the b box makes the 01-03 have the 11600rpm revlimit in all 6 gears as well. making them unrestricted just like the 2000
hope this clears up any confusion

Ok I think I understand .It doesnt do anything except remove top speed limit.In which case Im not sure Id ever get to use it. Ive never hit the limiter yet.

KZScott,
Do you know why there is not one for '04-06 ZX12R? As you stated 2000 version is unrestricted and 01-03 are and Muzzy has B box to un-restrict it but what about for 04-06? Are they restricted also? I am sure they are since when my bike was dyno'd it shuts down at 186 MPH. I also found out that if I remove my speed o meter cable I can go pass 186 MPH (I will not try that), since I am not going to go that fast I am not sure why I even worry about this.....

Timing Retard Eliminator will be a useful addition and you’ll feel a performance and ridability gain in normal use. The Bonneville Box is more of a macho thing because very few ZX12R owners will ever have a chance to test whether it works. You can brag to your friends and show them the little plug in
module and puff out your chest a bit, but maybe that’s all you really need anyway.

i got a 04 and cant seem to find one for ma bike does anyone kno where i can get one

EVERY bike made after 2000 is restricted to 186 :( we just have to keep coming up with new ways to get around it. I have seen a dyno sheet that showed the g pack as working to remove the restriction, i think it was on an 05. the 04 and 05 have a slightly different ecu than the older bikes, so the b box wont work. (btw the 06 12 is just a left over 05, not a newer bike. i dont think they were sold in the usa or canada, but i think in the uk)
advance the timing 3 degrees and save buying a tre. same effect on the older bikes. it might open the secondary flies sooner on the newer 12s like the 14.

04-05 are 32 bit ecu's....the nikko g-pack for the 04-05 is the only way to derestrict
the top speed limiter......well short of the ecu mod that Dave Owen was able to provide
but Im not clear on that mod. It is a mute point. Sorry to bring it up.
Nikko g-pack is the only one for the 04-05
I run the dynojet pc3usb/hub/ignition module.It allows you to raise the rpm limiter to 12500, and run ignition +/- 10degrees

would you mind posting more info about the Rev-Xtend feature? I bought a pc3usb w/ign modual from Entropy, and theres a code with it (a printed email from dynojet) for 13500rpm. maybe its a typo? maybe a diff code? Karl never got a chance to test it
I would prefer to keep things limited to 12500 ish
the code i have is for the 00/01 and may be diff anyway, but i have DSSFMDBBFZANNSDSSATT

I was told that the rev extend was only good for +500 rpms.
Is the factory 11600ish from the ecu?
I was also told the code is only good for the serial# that was provided to obtain the unlock code.
Let me know if you need anything....Its fairly easy if you dont have to update the firmware.

factory is 11600 (the tach can be off) are you using a code for 12500, or did you just have a rev xtend code and the tach shows 12500?
thx!

When I bought the ignition module (almost 3 years ago) I was told buy a dealer that the
rev extend would put it at 12500.....but I found out later that the 11600 was true rpm
and the 12000 was just error in tach....so it is really only going to give you 12100....
some say this is also subject to +/_ 10% error.....

thx Mike, ill fire off an email to dynojet and see if i get a reply. hopefully Dusty still works there, this email was printed feb 2007

So will the Rev Xtend remove the 6th gear rpm restriction on 2001 and newer 12s?