Originally posted by 90TGP
On those tire calculator sites, they say if I switched from a stock 245/50/16 size tire to a 245/45/17 size tire, my mph would be 0.1% off. So if the spedometer said 60mph, I'd actually be going 61mph. So that's probably where you would see your decress in economy, by just going a certain mph faster.
those are some wide arse tires. how wide are your rims and what offset are they? rubbing issues?