jase
Sorry not been back to you, life is a bit mental currently and not helping by being away a lot.
Beddie's advice on the other thread is very good just split the calipers yourself using a T55 torx bit and retorque them to 75lb/ft no more....Emphasis tothe powder coaters NOT NOT NOT to powder coat any machined surface and that includes the pad gallery on the carrier. Also the single biggest positive step you can take is to fully clean out the rubber slide bushes on the caliper and use new silicon or lithium grease, also remove the Allen key slide pins with a 7mm Allen key and get rid of the inevitable crap that's on them and give them a polished finish.
The DS2500 I can get affordably but if you're on a budget consider the Mintex M1144 just as good arguably better and cheaper.
Now then.....that caliper dampener
Its fitted to all cars which have Alloy bottom arms as it prevented some sort of harmonic vibration, it was also fitted to R32's in 2008, ATE who supply the calipers to VW may have also used S3 piston housings with R32 outside castings as part of a supply issue adhoc but that's my understanding of it.
Never heard of anybody discussing vibration on R32 calipers Ali bottom arms or not, the development cars are very heavily instrumented as NVH is accumulative hence the reason why they're fitted if required....very common in helicopters
