Review on CDHPOWER Alum Manifold 40Mm Intake by Jared Winebrenner

I put this on my 50cc 2 stroke and it changed the carburettor settings. I have a race carb, so I switched to a size 75 for optimal intake. Performance has not improved. I would guess that a larger canister would theoretically give better performance, but the application runs on such a small engine that it just doesn't work. Looks cool but is inefficient. Buy a performance exhaust, race carburetor and jet kit if you want to spend money on performance. Polish the intake and exhaust ports if you want to improve performance yourself. YouTube videos can show you how easy it all is.