[rgoddard57]

I have a 2008 GT with stock 18s on it. I am currently looking at new wheels but I would like to know what will fit. 18x9 / 18x10 seem to be popular choices but I have been looking for 20's. I found a staggered set that is 20x9.5 / 20x11. Will these fit? just seems like it could rub. Just bought it in sept. 2010 so I am still doing my research on this car. Thanks for the help!

 

[Guest]

Steeda Spyder makes the most common, actually the only that I know, 20x11. Obviously for use on the backs only and I think 305 MIGHT be the safest for width on that. If you can determine the largest size tires you want on your car, it would be a lot easier to determine appropriate rim. What do you want? 275 on front is as big as I would go though.

 

[rgoddard57]

Thanks for the help. I have also seen 18s with a 18/9 and 18/10 staggered setup it comes with tires. I believe the rear is a 275. They are Fr500 style. Im really just looking for the best looking widest setup I can achieve with a stock setup I don't want the tires pushing way out beyond the fenders. Any Ideas?

 

[rgoddard57]

The car is Black with a CDC chin and GT500 spoiler. I have also thrown around the idea of lowering it a little.

 

[rgoddard57]

OK I found Some Fr500s that are chrome 18s staggered on American Muscle and Cruzinconcepts. Anyone know know if these are the same wheels cause there is a large price diff?

 

[sqidd]

You can run a 10" rim in front with a 285 if you want to (its tight). Most go with a 9.5" rim with a 275 though. Doesn't matter if they are 18, 19, 20's.

You can run a 18x10.5 with a 295 and some 305's in the rear

or

You can run a 20x11 with a 315 in the rear.

Without a cutter and welder it won't get any wider than that.

 

[rgoddard57]

Thank you! 1 more Question. AM offers TPMS. Do I need this? What will it do if i don't get it?

 

[sqidd]

Thank you! 1 more Question. AM offers TPMS. Do I need this? What will it do if i don't get it?

If you get wheels and tires already mounted you want TPMS sensors in them. If you don't get them you will get a message on your dash and they won't work.

If you are getting wheels and tires not mounted you can use the sensors out of your stock wheels, as long as they are the same diameter (I think). They are bands that go around the rim.

You may want to ask them.

 

[rgoddard57]

If I were to go with a 18x 9 in the front. What size would you say is the best?

 

[sqidd]

If I were to go with a 18x 9 in the front. What size would you say is the best?

255's.................

 

[Guest]

Well if u want the most grip get the widest tire u can. If u prefer a staggered look do that. Stagger usually pushes you into an understeering car unless you run different compounds to offset. Makes plenty of logic to do all 4 the same but it is your ride.

 

[09mustanggt]

I chose to go cheap and save money on the tpms sensors...not a big deal. A message comes on when you start the car and all you have to do its hit reset. There its also a ! Light that comes on, and like I said not a huge deal unless you are OCD for car service lights.

 

[sqidd]

I chose to go cheap and save money on the tpms sensors...not a big deal. A message comes on when you start the car and all you have to do its hit reset. There its also a ! Light that comes on, and like I said not a huge deal unless you are OCD for car service lights.

My TPMS system saved me from a HUGE PITA in Oklahoma a few years back. I had stopped in a small town in the middle of nowhere and it chimed on. There was a nail in the tire. I drove a few blocks, found a car/chain store, bought a plug kit and fixed it in their parking lot. Total time 20-25min. If the tire had gone flat after I left town I would have been on the side of the freeway dodging big rigs going 80 while I changed the tire.

 

[Matt1230]

I don't know if you have purchased the tires yet, but I wouldn't go with 20's. I had 20/255 in the front and 20/285 in the rear (20x9 and 20x10) and the ride quality was awful, but I didn't know any better. I dropped it down to 18x9 and 18x10 with 255's and 285's again and love it. I would never go above 18 again.Get more rubber and ride quality is much much better :bigthumbsup Just my 2 cents

 

[09mustanggt]

I went with 255/45-18 on a 9 inch rim in the front which is as wide and as tall as you can go. 10 in wide 27 in tall. Looks awesome too, I didn't think I would like that big profile, but I do.

 

[chump]

Thanks for the help. I have also seen 18s with a 18/9 and 18/10 staggered setup it comes with tires. I believe the rear is a 275. They are Fr500 style. Im really just looking for the best looking widest setup I can achieve with a stock setup I don't want the tires pushing way out beyond the fenders. Any Ideas?

I run 18/9 and 18/10 staggered cobra r deep dish rims with 255 on the front and 285 on the back no rubbing issues at all , the rear tires are right in line with the fender.

 

[rgoddard57]

Thanks! you guys have saved me a lot of trouble! I am currently still looking for rims but I am having a really hard time finding the right ones. I think I will get the TPMS and I think I will get the 18s. Any thoughts on what would look great on a 08 Black GT with cdc classic chin, GT500 spoiler, head light splitters on stock lights and AM quarter panel scoops?