I haven't yet built the bellypan portion of the fuse so I'm still flexable with the header and pipe. just not too sure how easy it's going to be removing the one piece wing with the tuned pipt down there? anyway, I still would like to pull it off somehow. Are we assuming that the engine is mounted inverted? I can still pull a measurement for ya once I mark off the height of the horizontal on the bulkhead. I'm leaning on a mac's header and a shorter pipe mounted to the outside...but ,, I just haven't been there yet. eric PS. get two if you strike the deal with taiwan, I'm going to be building the Fantacy next and will need a good pipe for that one.