ARC-8 // Front & Rear: 17x8" ET25 with 215/45-17 tires
Vehicles Covered in this Guide
All years and models of 4-lug 2WD E30 coupes, sedans, convertibles, and touring. This guide excludes the E30 M3 and 325ix models. Fitment between all other 2WD E30 models is identical.
Throughout history, the E30 has always been a popular choice for track enthusiasts. Its simplicity and versatility makes it an excellent choice for pretty much any type of use case. The first wheel we ever made was the ARC-8 for the E30 M3, made specifically to fit perfectly, be lightweight, and clear big brake kits. To this day our philosophy remains the same. We produce two 4x100 wheels for the E30, the 17x8" ET25 and 17x8.5" ET20.
|Bolt Pattern: 4x100||Thread Pitch: M12x1.5mm||Center Bore: 57.1mm|
17x8" ET25 Fitment
ARC-8 // Front & Rear: 17x8" ET25 with 235/40-17 tires (mods required)
For most street or track applications, we recommend this wheel. This is the non-concave version of the ARC-8, and is a direct bolt-on fitment with no modifications required.
Recommended for most types of street and performance driving. Allows proper front-to-rear tire rotation to extend tire life & improve handling balance.
- Front & Rear: 17x8" ET25 with 215/40-17
- Popular fitment.
- Direct fit with no spacers or modifications required.
- 235/40-17 tires can also be used with front negative camber rear rolled fenders.
17x8.5" ET20 Fitment
ARC-8 // Front & Rear: 17x8.5" ET20 with 215/40-17 tires (mods required)
This fitment prioritizes concavity and aesthetics above all. It will require 5mm spacers up front in order to clear OEM brakes (and most aftermarket BBKs). In addition, quite a bit of negative camber will be required front and rear in order to avoid rubbing the fenders. This fitment is not recommended if you're looking for a direct bolt-on setup.
- Front & Rear: 17x8.5" ET20 with 215/40-17 tires
- Requires front negative camber.
- Requires 5mm front spacers for brake clearance.
- Requires rolled rear fenders to prevent rubbing.
- 235/40-17 tires can also be used, but more negative camber will be required.
Additional Fitment Information
About Camber Plates
Adjustable camber plates do more than just aid in wide wheel and tire fitment. They provide increased grip and reduced tire wear by spreading the load evenly during cornering. Learn more in our blog article, The Positives of Negative Camber, then see our E30 camber plate pages here.