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Old 29-12-2021, 05:50 PM   #13
uncle duke
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Join Date: Aug 2012
Location: ipswich
Bike: S2r 1000
Posts: 138
I used to buy the k&n (which i'm lead to believe are made by Hiflo) with the hex nut but Hi Flo themselves now do a filter with a hex nut which i believe has RC after the part number
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