Another question guys I am considering putting g35 coupe wheels on my sedan. It has them now already but they're pretty curbed. With that being said would the tire pressure sensors work as they should or will I have to go to Infiniti and have them do something to make them work with the car? Also what tire size should I go with that will leave my speedometer accurate. I'm pretty sure it's not accurate now currently my car has 245/45/18 on rear 225/45/18 on front. Any help would be greatly appreciated

 

Use a tire size calculator to see a tire that should work, and look at the TPMS no special tools thread for a guide on how to set those up.

 

Not sure exactually how to understand the tire size calculator just figured someone ran across this problem a few times

 

I was considering a 245/40/18 for the rear and 225/40/18 for the fronts and was curious how far off my speed would be at 65 mph

 

What sedan do you have? Year? RWD AWD? what tires are on there now?

 

Coupe wheels, what size 18" or 19"? You should be able to install those TPS in the new wheels and have them work without making any adjustments! If your new wheels are curbed that bad find a wheel repair shop and have the cleaned up! Any time you can avoid going to the dealership you're $$ ahead!
Gary

 

2005 sedan it has the 18 inch coupe wheels on there. They're already bolted up although I am looking to replace the wheels to some that are considerable cleaner, less curb rash still a bit concerned about how far off the speedo will be. I am not that concerned about the tps I have found a few threads in regards to how to get the car to recognize them

 

One of the best looking wheels for the sedan are the '06 19" coupe wheels! You can run 245/40X19" tires on all four corners for better handling, wheel sensors will still work and speedometer isn't effected. There is always a set of these for sale on our Marketplace under private classified. Look for a set in your area in good condition, they often come with tires too.
Gary

 

How far your speedo will be off is determined by what size rear tire you decide to use and if that tire has a larger or smaller diameter than the stock tire sizes.

Input the stock sedan tire size and the size of your rear coupe tires into this comparison calculator. https://tiresize.com/comparison/

Also if you have an AWD sedan, the front and rear tire sizes should have the same diameter otherwise it will cause issues for the AWD system. If your sedan is RWD, then staggered tires are fine.

 

Thanks lost180 that's exactually what I was looking for something with simplicity turns out not far off enough for me to have to worry

 

I don't have awd so no worries I'm just curious why abs lights are going off with different size tires from rear to front