I’ve just finished my first actual build of a mini bike engine. I used a Briggs IC block and head a billet flywheel and rod from ARC a cheater cam from Dyno cams and I’m useing EC carbs Chinese style Mikuni carb with their intake. I’ve ground and polished the exhaust and intake ports and then did my best at shaving the eyebrows. But now with my exhaust I’m not sure what to use or build. Right now I just have used a piece of 8” gas pipe that I’ve reduced down on the end and threaded a regular Briggs muffler onto. I’ve looked at Robertson torque tubes ( they look awesome!!) but are they really worth it. I’m hoping people here can give me some tips on what works best with the engine I’ve put together. Thanks!!
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