This FAQ is currently in development. Please feel free to post any suggestions or comments.
5x115mm is proper for the 2005 Chrysler 300. The 2004 Chrysler 300m was 5x114.3mm.What bolt pattern fits my 300c?
20x8.5 seems to be the most common setup for forum members. The 300c can accomodate 20x9.5 with no issues with the proper offset.What 20" wheel width is best for the 300c?
18-24mm will fit properly depending on the fit you want within the fenderwell. Anything above 24mm will most likely require a space to be used.What Offset is proper for a 22"x8.5" Wheel?
I am unable to find anyone running this setup. If you are, please contact me with your tire size and offset information. ThanksCan I fit a 20x9" Wheel?
My dad always told me if you can't do something right, don't do it at all. Spacers are a bandaid to a fitment issue. Get a proper sized wheel with a proper offset and you won't run into any issues.Why shouldn't I use spacers?
Most forum members are running 20x8.5" with an 21-24mm offset on a 255/45/20. This setup will cause no rubbing no matter how many dead bodies you care to stuff in your trunk. Another alternative is a 275/45/20 for a wider tire.What is the ideal 20" Setup then?
Quite well. Image courtesy of 300CULATER on Helo Cash & Toyo Proxes S/T 255/45/20:Will the 45 series tire be enough to fill my wheel well?
Pirelli P Zero, Continental SportContact 2, Nitto Extreme 555, Falken. Just about every major tire manufacturer now makes an assortmentment of 20" sizes. Avoid cheaper tires like Hankook or Kumo if you can.Who makes a good tire in 20"
You get what you pay for when it comes down to wheels and tires. The cheaper the wheel, the more likely it is to bend on potholes. Wheels CAN be straightened and repaired but only a few times before they become worthless and lose their strength. A fair price for a good set of 20" Wheels and tires will cost anywhere from $2000 on up. $2500 is a very common pricepoint for a reputable brand of wheel with nice tires. Pricing can go all the way up to $5000 for a set of 20" forged multipiece wheels.I can get a full set of wheels and tires shipped to my house for less than $1000. Is this a good deal?
Yes, a few forum members are currently running this setup with no rubbing issues. A Picture courtesy of Black Hemi. The wheels are MC2ning FZ6 on 255/45/20 on the Eibach Sportline springs:Can I install the Eibach Sportline or Pro kit with 20" wheels?

The dealer is incapable of recalibrating your computer to any tire size above the factory 18". Keep your wheel and tire setup within 3% of the same overall diameter as the stock 18" Setup. Use this calculatorDo I need to get my computer recalibrated for my new wheels/tires?
Ride quality will be very close to stock, perhaps better (The factory Continentals are a bit rough). Traction will also be improved and cornering due to the low profile sidewalls.How will my ride quality be affected going to 20"?