Im saving money to get a full muzzys exhaust and I am pondering which jet kit to buy. I know Ivans is top notch but they say their kit is designed for use with a 98-99 pipe and it appears they only provide 1 set of jets. Dynojet on the other hand has multiple jets to choose from in their kit and they aren't designed for any specific exhaust combo. Im have had 2 other bikes with a dynojet kit installed and I had good luck with both of them. Im just curious to see what everybody else is running on their bikes to get an idea of how the different setups perform in the real world. Another thing I noticed is that dynojet has 2 different kits, one for the 00-01 zx6r and another for the 05-06 zzr unlike ivans which claims their kit fits both. Dynojet has a kit specifically for the zzr and it includes completely different jets than the zx6r kit. This is where I get a little confused about what would be better. I know Im probably over-thinking things but I just want to get the most out of my money and I dont want to end up with a bike that dont run right.