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Tire pressure when +2
I read an article recently that suggested that when you increase your wheel size, but keep the same rolling diameter, e.g., going from stock 17" wheels to aftermarket 19", known as "+2," you should increase your tire pressure to make up for the smaller volume of air in the 19" tires. But how much? Is there a formula for this?
My 17" tire pressures were 29psi front and 36psi rear. What pressure should my 19" tires be?
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2001 Boxster S 6-speed, 2013 Boxster S PDK
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