Here are pics as promised... finally!

Did not modify the pipe tunnel but my buddy Erik did on his to accomodate his Webra pipe on the Webra 145. Basically he eleveated the rear of the pipe and made a cutout in the belly pan and sheeted it. So the end result is the pipe angling downward towards the ground. Mine is flush with the bottom of the wing as you can see.

I only made a small hole in the fiberglass fairing at the rear part of the pipe to accomdate the exhaust deflector.

Will take more pics when I have the cowl off. Hope this works for now. I apologize for not getting these sooner.