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Ships within 48 hours · Estimated delivery Aug 9 - Aug 14
4mm Thick Aluminum Construction
This installation can be done on the machine safely by an experienced mechanic
We removed all restrictions of airflow & forming imperfections
Intercooler fan activation temp lowered from ~140* F to ~95*F
The inlet of the factory muffler is 3"
RPM Pro R "Big Core HeadPipe" Header Pipe maxxis roxxzillas 4mm Thick Aluminum ConstructionPro R "Big Core HeadPipe" Header Pipe Often hated is the Pro R's "out of frame" head pipe. Make no mistake this is the most efficient head pipe design for this engine and we wont bore you with information in regard to gas wave propagation, cylinder overlap timing, gas particle flow, and proper exhaust pressure waves. Let's just say Polaris had help designing the head pipe the way it is, and there wasn't a lack of R&D. Does this mean it's perfect? No.
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