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This site has the ability to compare .09" and .1" SU needles.
https://www.mintylamb.co.uk/suneedle/
In addition, Burlen sells a software: 'WinSU' which will compare those sizes plus the .125" (HD8) needles.
My friend and I are looking into new needles as we've installed K&N exhaust gas sensors and discovered our cars run rich all the time. Would like to lean up the cruise only and get > 16mpg on the road.
https://www.mintylamb.co.uk/suneedle/
In addition, Burlen sells a software: 'WinSU' which will compare those sizes plus the .125" (HD8) needles.
My friend and I are looking into new needles as we've installed K&N exhaust gas sensors and discovered our cars run rich all the time. Would like to lean up the cruise only and get > 16mpg on the road.