ANSWER TO TIRE SIZE: TIRES ARE "GOODYEAR EAGLES"LS, P275/55R20. NO REAL NOTICABLE DIFFERENCE IN RIDE, BUT NEEDS A LITTLE MORE BREAK IN STOPPING. WILL POST MORE PICS SOON
WELL, I'M NOT SURE HOW TO JUDGE THE AMOUNT OF PRESSURE BUT WHEN YOU DRIVE A VEHICLE DAILY YOU CAN NOTICE SUBTLE CHANGES. AFTER TALKING WITH A DEALERSHIP SERVICE PROFESSIONAL ABOUT IF HE THOUGHT 20'S WERE HARDER ON THE WHEEL BEARINGS, HE DIDN'T THINK 20'S WOULD MATTER MUCH OVER 17"(STOCK WHEELS). ALSO WHEN I ASKED HIM ABOUT THE BRAKING, HE SAID TODAY'S BRAKE PADS ARE OVER-KILL, AND WITH THE WHEEL DESIGN I PICKED, HE SAID THE BRAKES SHOULD RUN COOLER THAN WITH THE STOCK WHEEL. HOPES THIS SORTA' ANSWER'S YOUR QUESTION.