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[jordanjww]

Looking to get new alloys for my e91 but not sure what the perfect specs would be for them looking at either csl style or m359's.

What size alloy? what width? what offset?

[Expert@ApexWheels]

jordanjww,

Happy to help! We have many great options that can work for your car. For the E91, we recommend the following fitment:

17" Wheels

Staggered:
Front: 17x9" ET30 with 235/40-17 tires
Rear: 17x9.5" ET35 with 255/40-17 tires
* Direct fit.
* 255/40-17 front tires can also be used up front as a direct fit
* 275/40-17 rear tires may require rolled fenders and/or negative camber depending on ride height.

Square:
Front & Rear: 17x9" ET30 with 245/40-17 tires
Direct fit.
* 255/40-17 can be used but may require front negative camber.
* 5mm front spacers may be required with certain aftermarket suspensions.

Here is an example of our 17" ARC-8 wheels on a E91:



18" Wheels

Staggered:
Front: 18x9" ET30 with 235/40-18 tires
Rear: 18x9.5" ET35 with 265/35-18 tires
Direct fit.
Popular fitment
* 245/40-18 front tires can be used.
* 275/35-18 rear tires may require rolled fenders and/or negative camber depending on ride height.
* LCI sedan and wagon may require rolled rear fenders and/or negative camber to prevent rubbing. 255/35-18 rear tires may be used as a direct fit.

Square:
Front & Rear: 18x9" ET30 or ET31 with 255/35-18 tires
* Direct fit.
* Popular fitment
* 5mm front spacers may be required with certain aftermarket suspensions

Here are pictures of our 18" ARC-8, EC-7 and FL-5's on an E91:







19" Wheels
Staggered:
Front: 19x9" ET28 with 245/35-19 tires
Rear: 19x9.5" ET33 with 265/30-19 tires
* Rolled rear fenders may be required to prevent rubbing depending on ride height.
*LCI sedan and wagon must use 19x9.5" ET33 in the rear with 255/30-19 tires, or require rolled rear fenders to prevent rubbing.

Here are a couple pictures of an E91 on our 19" ARC-8 wheels:





If you would like to see a complete list of all fitments that can work for your car, be sure to check out our fitment guide here. Additionally, feel free to PM us or give us a call if you want to dive deeper into what fitment is best for you. We are running a couple Group Buys on our wheels as well if you are interested.

-Matt