I have an '02 400 Scrambler. I am thinking about putting a pipe on it. I am torn between getting one from RCR or DynoPort. I have heard that the DynoPort pipes do not require a clutch kit. I am looking for some gains in low end but mostly would like more top end. I need a more speed. Anyone know of anyone running or running yourself a DynoPort pipe? I have a DG silencer on mine now. I would like to keep it with whichever I choose. I also have a UNI filter in it. Other than that it is stock. I am trying to get by as cheap as possible for now.

 

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If your looking for more top end, the best trail pipe would be the HPD trail pipe. Rick sells those also. You could run the stock clutching by changing the primary to a polaris brown. That works great. The HPD pipe runs at 6700-6800 rpms and will be good for almost 10mph. The Dynoport pipe really rocks and I dont understand why people shy from them. Rich Daily at Dynoport builds bad *** sled motors and they are CVT driven too. The pipe makes a huge amount of torque but doesnt turn any more top RPMs than the stocker. If you want more top speed then it is not for you. Bubba

 

Thanks for the input. I was kind of leaning towards going with Ritter anyway. If I could live without the top end improvement, would the DynoPort be good for mudding and trails?