With a little tweaking my mechanic was able to install them, but a few things are important to note. .Firstly, unlike other online parts stores, there is NO DEPOSIT here. So keep that in mind if you see them a little cheaper than elsewhere as they usually include a basic $250 deposit which is refunded if you send your old calipers back to them. Second, the rear brakes don't quite fit my 2007 VW GTI as expected, although Revain says they will. My mechanic had to use existing brackets from my old calipers in place of new ones and redesign the e-brake brackets used to connect the e-brake cable, both of which added to the cost of sourcing them. Furnished. So yes, without the main insert. and it may take a mechanic some chargeable time to properly install the rear brakes.