If you are repacking the dual exhaust for the V&H Classic System, you need 2 kits. 1 kit = 1 exhaust pipe. Dennis Kirk customer service was helpful in suggesting I order 2 kits. The fiberglass repacking kit fit perfectly - no trimming required. You will need to use something to hold the packing to the inner pipe though. I used drop ceiling track wire, wrapped around the fiberglass packing and twisted. Another option might be picture hanging wire.