Mine have 20mm and came with nuts washers and spring washers from these guys which was a bonus and they fit fine.
Cheers
Stot
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1.6 Mazda B6 : Garrett TBO339 : 420cc WRX Injectors : FMIC : Microsquirt V3 : LC-2 Wideband : Toyota COP : 1.8 ATB LSD
Build Started Jan 2013 : OTR Aug 2014 : Still OTR June 2024
Last edited by Stot : 21st June 2013 at 11:16 AM.
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