Piston Slap: Si or No to 'Minus 1' Tire Sizing?

TTAC Commentator 70Cougar writes:

Sajeev,

I am probably the first owner of a Civic Si to ever want to downsize his rims, so I’m looking to the expert on -1 matters: you. (Woot! –SM)

I have a 2007 Honda Civic Si sedan with the factory 17-inch wheels. I’ve always preferred the same generation EX’s 16-inch five spoke rims, and I wouldn’t mind a smoother ride and cheaper replacement tires if I still get decent handling performance out of the 16s.

Would the 16-inch rims fit around the brakes on the Si and otherwise safely function on my car? Would there be a significant decline in handling performance?

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  • Lou_BC Well, I'd be impressed if this was in a ZR2. LOL
  • Lou_BC This is my shocked face 😲 Hope formatting doesn't fook this up LOL
  • Lou_BC Junior? Would that be a Beta Romeo?
  • Lou_BC Gotta fix that formatting problem. What a pile of bullsh!t. Are longer posts costing TTAC money? FOOK
  • Lou_BC 1.Honda: 6,334,825 vehicles potentially affected2.Ford: 6,152,6143.Kia America: 3,110,4474.Chrysler: 2,732,3985.General Motors: 2,021,0336.Nissan North America: 1,804,4437.Mercedes-Benz USA: 478,1738.Volkswagen Group of America: 453,7639.BMW of North America: 340,24910.Daimler Trucks North America: 261,959