Was a 162 and I back halfed it with tube chromoly to get the length for the 174. Setup to use with a front mount turbo setup. (no room for under tunnel exhaust) Ive put aulm where the plexi is shown, other than that it is as you see it. Also have 174 Simmons skid that was mounted in it for sale as well. 500+ ship for tunnel, or 1200+ ship for tunnel and skid. Located in Salem Oregon. JOHN 503-932-3696 Might entertain some trades for M1100 parts or (insert what you have here)