Apex ARC-8 17x8 Flow-Formed Wheel 4x100 BP / ET25 / 57.1mm CB - 4 Lug - Satin Black (BMW) (ARC8178ET25-4100-571-SMBK)
The Apex ARC-8 has earned its reputation as one of the most trusted wheel designs in the BMW enthusiast world by combining lightweight engineering, aggressive motorsport styling, and proven durability into a package built for real-world performance driving. Specifically designed for BMW 4-lug applications utilizing the 4x100 bolt pattern, this 17x8 ARC-8 improves steering response, braking feel, and overall handling dynamics while maintaining the strength needed for aggressive street and track use. Finished in Satin Black, this wheel delivers a stealthy motorsport-inspired appearance that perfectly complements both classic and modern BMW builds.
Built using advanced flow-forming technology, the ARC-8 strengthens the barrel structure while remaining significantly lighter than traditional cast wheels. Apex engineers utilized extensive Finite Element Analysis (FEA) to reinforce critical stress zones while eliminating unnecessary material for maximum efficiency and long-term durability. The result is a wheel engineered to withstand repeated hard driving while maintaining excellent brake clearance, fitment precision, and structural integrity.
Quick Specs
- Part Number: ARC8178ET25-4100-571-SMBK
- Wheel Diameter: 17 inches
- Wheel Width: 8 inches
- Bolt Pattern: 4x100
- Offset: ET25
- Center Bore: 57.1mm
- Finish: Satin Black
- Construction: Flow-Formed Aluminum
- Vehicle Compatibility: BMW 4-Lug Applications
- Hub Centric Design
- Big Brake Kit Clearance
- OEM TPMS Compatible
- Compatible with OEM and Aftermarket Hardware
- Open Hub Center Design
- JWL and VIA Certified
- Lifetime Structural Warranty
- 1 Year Finish Warranty
Features
- Flow-formed construction improves barrel strength while reducing overall wheel weight
- Designed specifically for BMW 4x100 applications
- Deep-concave ARC-8 spoke profile delivers aggressive motorsport-inspired styling
- Engineered using advanced FEA testing for optimized strength and durability
- Designed to clear many popular aftermarket big brake kits
- Engineered for maximum weight savings without sacrificing structural integrity
- Open hub center design allows for faster wheel swaps during track use
- Oversized lug openings accommodate impact sockets and race lugs
- Hub-centric design minimizes vibration and ensures precise fitment
- Compatible with OEM and aftermarket TPMS sensors
- Works with OEM wheel hardware and most aftermarket lug setups
- Satin Black finish delivers a clean and aggressive performance appearance
- Multi-stage finishing process preserves mounting surfaces for proper torque values
- VIA certified and tested beyond standard JWL requirements
- Includes Apex gloss black center cap compatible with OEM sizing
- Covered by Apex accidental damage replacement program
- Backed by Apex lifetime structural warranty
Built for Serious Enthusiast Driving
The ARC-8 was engineered for enthusiasts who expect measurable performance improvements from their wheel setup. Reducing unsprung and rotational mass sharpens steering precision, improves braking response, and enhances acceleration characteristics while maintaining the durability needed for repeated aggressive driving. Whether your BMW sees canyon roads, autocross competition, HPDE events, or spirited daily driving, the ARC-8 delivers the confidence and reliability enthusiasts expect from a true performance wheel.
Fitment
Fits select BMW 4-lug applications utilizing:
- 4x100 Bolt Pattern
- 57.1mm Center Bore
- ET25 Offset
Always verify wheel, tire, suspension, and brake clearance prior to installation.
FAQs
Q: Are Apex ARC-8 wheels suitable for aggressive track driving?
A: Yes. The ARC-8 was specifically engineered for aggressive street and track use with reinforced flow-formed construction and extensive durability testing.
Q: Will these wheels work with OEM BMW TPMS sensors?
A: Absolutely. Apex ARC-8 wheels are compatible with OEM and aftermarket TPMS sensors along with standard valve stems.
Why Buy from Beefcake Racing?
At Beefcake Racing, we understand what enthusiasts expect from a true performance wheel setup. That is why we carry proven products backed by enthusiast-level support, fitment expertise, and real-world performance knowledge. Whether you are building a dedicated track setup or upgrading your street-driven BMW, our team can help you choose the right wheel and tire combination for your goals.
Need help with wheel fitment, tire sizing, or brake clearance? Contact Beefcake Racing today.
Email: sales@beefcakeracing.com
Phone: 1-855-827-7223
Note: Wheels that have been mounted with tires are considered used and cannot be returned or refunded. Please verify vehicle fitment before placing your order, and always test fit wheels prior to tire mounting.
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