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I might just pull my stock ones at the next valve adjust and try to polish them.
Nothing gained nothing lost.
Still having fun after 18,375.2 miles.



If you pull them off to polish, you might as well get a round file / dremel to their insides and match them to your inlet port, hat will help gain a 'little' bit of power by smoothing out the airflow. There was about 1-2mm negative overlap on mine.

Oh, just remember to NOT do it on the bike, cause you don't want metal shavings in your engine!

TBA, Stainless extractors / drag pipes, 65mm over forward controls, Thruxton needles, 904cc, head ported, lowered 1-inch, Console removed, relocated battery box, Australia.