Whats the difference between the M-2, C4, M-5 or M-7 V.A.L.E. canisters?
All of the canisters perform and sound the same, they are simply different styles. For instance the M-2, C-7 are a small oval, the C-4 is round and the M-55 is a large oval canister. All M-Series (M-2, C4, M-5 and M-7) canisters have the same high performance stainless steel core and high temperature packing material and thus will produce the same amount of performance gain.