Andyinchville1, thank U.....th' manifold is made up of two intake manifolds joined by silicone heater hose......, th' filter is a K&N crankcase filter I got from a local auto parts chain ($15).......it doesnt get in th' way of pedaling because its in a sweet spot juussst below th' seat. I'd love to give you a progress report on power ....but I think I got a lemon engine. If you look at th' pics....... you'll see one of the upper rod roller bearings lodged in my cyl. head. I tryed calling dax several times to get some info on these newer engines .........but, no dice. I STILL have a decent waiting once I get this engine fiasco resolved........regardless, Thank you for your time. Brian