should I get 245/ 35/19 in the front and 275/35/19

or why do they have it for 245/30 front and 275/35 rear???

should I have 35 all the way around or 40's??? 30is really low for me and also i want something to fill the wheel gap ....will it mess up my speedometer and why do they have different sizes for the sidewalls???? my stock 18's are 45's front and rear

 

anyone???

 

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I am running 235/35R19F and 265/30R19R and it's about ~1" overall smaller.
I think I am just fine and it actually feels better than OEM size.

 

so it doesnt matter that u stay the same front and rear??? would 35 front and 35 rear be ok?

 

As far as the speedo you should try to get tires that are the closest to the oem diameter as possible. For instance my sedan came with 215/50/17 and now I have 245/35/20 and 275/30/20 which are very close to the same overall size so my speedo is only off by ~0.7%

If the overall size is too far off between the front and rear the VDC will flip out.

 

ok so if they recommend 245/35/19 and 275/30/19 for the coupe it should be ok since my stock is 225/45/18 and 245/45/18 in rear?

 

nfo: that sounds like the right size. alot of people run a 35 profile tire on the back too. More rubber can also protect your wheel from potholes and the beefier look is sometimes a plus.

 

just use the wheel size calculator on the wheels portion of this site. It works fairly well to keep you within the overall diameter of the stock wheel set. I'm running 245/40/19f and 275/35r on my sedan, that's below 1% of overall diameter.

 

yea thats what i'll prolly do cause i want the sidewall like they do on oem 19's and also to fill the tire gap better

 

so you know, the tire sidewall has nothing to do with your tire gap. Lowering the car will get your gap covered.

 

actually it will ....i cant lower my car cause of the kit and bigger tires will fill the gap ....as it did with my old car

 

if u have a lowered car with oem rims and still have a gap and if u put say 50 seriies on (Which would be retarded and rub like woa) ....u will have less of a gap

 

Its more imortant that you try to keep your overhigh tire height the same, otherwise you will be changing your final drive ratio and either making it numberically higher (hurting gas mileage, pick up some accel of the line) or making it numberically lower (hurting accell of the line, picking up some gas mileage). And dont for get, both will make your speedometer not accurate and in need of recalibration.
Otherwise, just make sure they will fit in the fenderwell and go for it.

Adam

 

adam it only effects ur speedometer by like 1.2 mph