Itll fit good with the setup brotha.
Doesn't a 275/40/19 square setup screw up the speedometer (by like 1.5 mph) if the original equipment from the factory was 255/40/19?I ran that setup with +30
Here’s a pic of mine with 19x9.5+30 275/40 PSS , tired to get an angled one so you could see there was a tiiiiiny bit of room you could go in the back out more.
no, calculated from the rear axles. Speedo was 100% dead on according to GPS.
Is that b/c you had the performance pack to begin with (i.e., a 275/40 rear tire)? I guess I'm wondering about the situation where a stock mustang originates with 255/40 square and you jump to after-market 275/40. Logically that seems problematic (though perhaps not in your case).
Yes sir! It was a PP car. If you have a tune you can ask them to recalibrate the speedo to your tire size, and even ford can do it if you ask.
My PP with with stock 275/40-19 Pirellis actually read a little slow and now reads correctly with 305/35-19 Nittos. Rarely do factory speedometers actually read accurately with factory tires.
