Actually he is correct the 300 and 400 praries have 3 stock openings on the CVT. One 1.5" in the front lower area for the intake and two in the back for exhaust. The two exhaust Ports are different sizes. One is a 2" while the other is 1.5". I capped off the smaller one to maximize air flow. I've done two different bikes like this and never had any issues. CVT ran cool and belt never gave issues even when running a set of 28" s/w laws.Ive never seen any with 2 exhausts.... should be one intake, one exhaust.
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