The Hot Rod Shop of Rockford, Illinois has moved to a new location in Rockford in order to now do Installation and Service work in addition to their performance parts store. They fill Nitrous bottles IN STORE and can have your bottles re-certified. I see a lot of questions about NOS fill locations for northern Illinois in this forum. The new address is: 4737 Colt Rd. Rockford, Illinois 61109 Phone: 815-227-5424 Hotrod - Custom - Race Car