PID Control Retrofit KIT for Rancilio Silvia w/ Steam Control
[KIT-RSNSb]

Very well thought out kit and instructions. Took me less than 3 hours to install with simple tools and I went slowly and carefully. My machine is 10 years old so I upped the brew temperature a couple more degrees from the factory preset and the coffee comes out perfectly with a lovely crema. We are extremely happy with this kit, the upgrade is well worth it.