8th Gen HFP R7 18 inch wheels

I would not recommend 19's on Si it will look like a donk.
 
You can put 20's on the car without messing up the speedo. It has nothing to do with the offset, and everything to do with the tire size you use. You can run 16's, 17's, 18's, 19's, 20's on the si. Proper tires will give you a perfect speed reading like stock.
:yeahthat:
 
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