Front 3/4 view of 2015 Honda Civic Si on Advan RCIII 5x114.3 18x8.5+38 White RCIII White
Rear 3/4 view of 2015 Honda Civic Si on Advan RCIII 5x114.3 18x8.5+38 White RCIII White
Yes. It bolts on (5x114.3) and sits in the normal range for the 2015 Honda Civic Si, from tucked to flush.
See all 10 Honda Civic builds on Advan RCIII wheels →
This preview shows how Advan RCIII 5x114.3 18x8.5+38 White wheels look on a 2015 Honda Civic Si. Use this page to compare finish, diameter, and overall styling before buying.
The 18x8.5 +38 offset sits within the Civic Si's aggressive fitment range and will deliver a noticeably wider, more filled-wheel-well appearance than factory 17x8 sizing. The +38 offset typically positions the wheel near flush or slightly tucked depending on suspension setup; lowering and fender rolling are common pairings on this platform to achieve the stanced look shown. Slight tire stretch (as pictured) is feasible at this width, though a 235–245mm tire maintains better sidewall support if you prioritize handling.
The Advan RCIII 5x114.3 18x8.5+38 White is one of the most popular aftermarket wheel choices for the Honda Civic platform. When shopping for 2015 Honda Civic Si wheels, fitment is everything -- bolt pattern, hub bore, offset, and fender clearance all play a role in achieving the perfect stance. Our fitment specialists can help you dial in the exact specs for your 2015 Honda Civic Si.
This 18x8.5 +38 bolts on the 2015 Honda Civic Si (5x114.3) and sits 26 mm further out than the factory wheel: a flush look.
Factory specs: DriveRight vehicle data.
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TRY THIS WHEEL ON YOUR CARFor visualization purposes only. Actual fitment depends on your vehicle's fender clearance, suspension, hub bore, and bolt pattern. Contact our team for professional fitment consultation.