Jim, those D2's seemed to be fine until he had them coated black.Doug G has some that he took off - they gave him some heat problems, but so did the Phantoms...
Watch your battery cover, Doug g's got so hot it melted the paint off.i had the d2's on my bike and there is no clearance isssue with the stock air cleaner . I had them painted black and had no problem with them excapt they got really HOT. especially rear cylinder near your leg
