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Old 12-02-2016, 11:15 AM   #6 (permalink)
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Originally Posted by oil pan 4 View Post
The only 2 stroke engine I have seen that even have a shot at possibly meeting emissions in the US use exhaust valves.
With direct injection and a cat you shouldn't need them, only issue is you would have to run "lean" to burn the oil blow by or have a trap of some sort
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