Have a 346E-Tech with a non-cat muffler mounted. I have tried to modify it myself, but want some feedback on how i shall do it. I have drilled out a extra hole, about 11/16" x 7/16". You can se it through the spark screen how big the hole is, and the deflector is from a 288xp. I have left the stock outlet as it is. How far shall I go with the grinder? Would it be better to enlarge the holes more, or shall I block the stock one and just leave it with the new one on the side.? (Pics)
One more thing, will it gain some more extra power if I match-port the cylinder exhaust-outlet to fit the gaskets and the muffler? (Pics)
One more thing, will it gain some more extra power if I match-port the cylinder exhaust-outlet to fit the gaskets and the muffler? (Pics)