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Time for new tires. Have a 2010 Challenger SRT8 6speed stock rims. Want to verify and get fresh opinions on fit and draw backs from going from stock 245 45 20s in front and 255 45 20s on rear to 275 40 20 on all 4s?
 

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Thanks. Hate to order these on all 4 and have issues fitting them up front. Sounds like a nice stance from the staggered no rotation set up.
 

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those will fit w/o issues - many SP owners have been doing this for a few years.

myself included. Same size 20 x 9" wheels and 4 piston Brembo brakes.
 

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Tire shops give any push back on putting them on? Suggesting possible rubbing issue?
the 9" wheel (rim width) is right in the sweet spot for 275/40 tires...won't have an issue.

Essentially 275/40 is a "plus zero" size up from 245/45 tire. Diameter and sidewall heights remain the same, just shifting tread width and compensating with different aspect ratio

I've been doing this stuff for 25+ years on my cars.
 

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I will be running these soon as my Demon replicas get here and I figure out what brand tires I want.
 

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Good day. Are the Factory SRT 20" on a '08... the same all the way around too (20x9)? Believe it or not... mine has the original Goodyears on it but I do not trust them... code show them manufactured in 07.
 

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Good day. Are the Factory SRT 20" on a '08... the same all the way around too (20x9)? Believe it or not... mine has the original Goodyears on it but I do not trust them... code show them manufactured in 07.
Yes - the '08 - '10 SRT Alcoas are 20 x 9" size
 
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