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Aaron's Take
Hongyao's EF9 sits on 15" Work RSZ-R rims, wearing sticky Bridgestone Potenza RE11 tyres in the profile of 205/50/15, giving it the maximum offset possible without the extension of a widebody to accommodate wider tyres.
The Civic EF9 SIR gets its stance from a set of Tein HA coilover (F10kg/R7kg) with adjustable pillowball mounts that allows for spreading of its legs for maximum camber adjustability. — with Hongyao Zhuang.