You can go to the local bike shop like probiker and they can hook you up. By the way, the stock ZX-10 exhaust won't pass Germany's inspection. I failed with my 07 multiple times but they had to let me pass because it was factory. I got accused of knocking the baffles out since it went through at 97db. Make sure the guys on base are testing it correctly according to the base regs. Alot of the guys hold it too close or not at the correct angle as well and even with the silencer you will fail.
I hear you! My buddy had a 04' 10R the first year they came out. one day the polizei pulled him over and gave him a hard time. They put the meter to it, and then they started sticking that little stick thingy that they carry around down in his end can to see if it went all the way through etc, etc.
Finally they looked at the end can and saw that it was factory with the Kawi stamp, and like you said, they couldn't do anything so they had to let him be.
At that time I had a '03' R1 with a custom short side pipe. They pulled me over in the Oldenwald one day. Stuck a meter to my bike...and wala! 119 DB. The Polizei got on the radio and said something in German, and nNo Lie! Within about 10 minutes about 5 polizei cars showed up. They all wanted to see the American with the crazy loud R1. A couple of the younger polizei though it was cool, and tried to talk the initial officer into letting me go since i was an american, but the old fart was like" Nein nein das ist verboten hier in Deutschland." You cannot ride this."
They took my bike on the spot. I had to catch a taxi/ train home, get my pick-up, drive back to the Oldenwald, get my bike, and then drive home again. A 6 hour round trip, because i was not letting them keep my bike over night.
They even have a 95 DB level limit on track days at most tracks now to include mainly Hockenheim and the Nurburgring, but they make exceptions for the main events like F-1, WSBK (not here anymore),(AC/DC, Metallica rock concerts etc, where tickets are hundreds to thousands on euros.
They do this by separating events into class levels. Thus determining how much noise they can emit from the stadium
Class A,B,C etc. The big events bring in substantial revenue, so of course they are going to allow them to make all of the dang noise they want to, like Nitro Drag racing etc.
The average joes like us only pay 12 euro a track session usually about 6-8 sessions a Thursday, alternating between cars and bikes. they usually make a few thousand a week on us., but if they get hit for noise infractions the track has to pay about 10,000 in fines, so like they say. $h!+ rolls downhill.
So it's not really the track. It's the people who live around the track who complain about the noise, and in turn the the town, govt imposes these rules to keep the status quo somewhat happy and content.
It's just like when I was living in Jacksonville, Florida People that lived near NAS Cecil Field would complain about the jets flying over at all times of the night.
Hell! You knew there was a Naval air station there when you bought the house. What did you think they would be doing there...flying paper airplanes?!
Sheeezz people