Trial fit of exhaust header from a Suzuki Samurai. Spacing is good.  Next step to weld it to the exhaust flanges. (Note: disregard the radiator in the picture as it’s not likely the one I’m going to use and is not in the right position).

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Where did you get your header?

I bought a header for a Suzuki samurai off EBay and cut off the mounting flange and welded on the ones from the Apex sled that I cut down to fit. Several guys have done this already.   The exhaust port spacing is the same between the Suzuki and the Yamaha. Total cost about $400 ($150 for header + $250 for welding) I don’t weld so had to pay a welder.    You can also buy a bolt on complete exhaust header from BDTurnkey system (Bryan Dacus) for $1800 plus shipping. Bryan also sells a complete engine wiring package with a custom tuned ECU and display. I am just using the stock Yamaha ECU.  

Nice and great idea on the Suzuki mod.....    Where did the engine mount come front?   It is quite robust for sure.....


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