The slip on is only availbale in one style, with the choice of either a titanium or carbon canister. The full systems, have 3 different lines. There is the Racing line, which has stainless headers, either ti, or Cf canister. Evolution, all ti, either ti or cf canister. Evolution 2, all ti, short can, either ti or carbon canister.PM me or give me a call if you have any questions.