ATI Damper 7.074in Aluminum 6 Groove (20202025 Toyota Supra / 20192025 BMW Z4 3.0L B58 Engine) ATI918351
High-Performance 7.074in Aluminum Super Damper for Toyota Supra & BMW Z4 B58 Engines
The ATI 7.074-inch Aluminum Super Damper (part ATI918351) is purpose-built for the 20202025 Toyota GR Supra and 20192025 BMW Z4 equipped with the 3.0L B58 turbocharged inline-six engine. This precision-balanced 6-groove damper offers superior harmonic control and durability under high boost, making it a must-have upgrade for street and track performance builds. Designed to replace the factory pulley with a race-proven, SFI 18.1-certified solution, it ensures consistent reliability at extreme RPM and boost levels.
Performance Highlights
- 7.074-inch outer diameter enhances vibration control across the powerband
- Lightweight aluminum construction improves throttle response and reduces rotating mass
- 6-groove pulley design supports OEM accessory belt systems
- Ideal for high-boost B58 applications including tuned Supra and Z4 builds
- SFI 18.1 certified for professional motorsport use
- Fully rebuildable for long-term performance and serviceability
Quick Specs
- Outer Diameter: 7.074 inches
- Material: Aluminum
- Pulley Type: 6 Groove
- Design: 1-Piece Super Damper
- Certification: SFI 18.1
- Applications: Toyota Supra (B58) / BMW Z4 (B58)
- Part Number: ATI918351
Why Choose ATIs Super Damper for the B58 Engine?
The ATI918351 Super Damper is designed to handle the unique torsional vibrations of the B58 turbocharged inline-six. Whether youre running a tuned Supra on E85 or a track-prepped BMW Z4, this damper delivers stable boost response, smoother power delivery, and improved reliability. It replaces the OEM damper, which can slip or fail under aggressive tuning, with a proven motorsport-grade solution trusted by top builders and tuners worldwide.
Frequently Asked Questions
Is this damper a direct-fit replacement?
Yes. The ATI918351 is a direct bolt-on upgrade for 20202025 Toyota Supra and 20192025 BMW Z4 models with the 3.0L B58 engine, maintaining factory belt alignment.
Does it help prevent crank hub slip?
Yes. The ATI Super Damper provides enhanced harmonic stability, reducing the chance of crank hub movement and timing gear issues common in high-boost B58 engines.
Is it suitable for both street and race use?
Absolutely. Its SFI 18.1 approved for sanctioned racing yet engineered for long-term reliability on daily-driven or track-tuned vehicles.
Can this damper be rebuilt?
Yes. Like all ATI Super Dampers, the ATI918351 is fully rebuildable with replacement parts available directly from ATI for years of dependable use.
Vehicle Fitment
- 2019 BMW Z4 3.0L Turbo (B58)
- 2020 BMW Z4 3.0L Turbo (B58)
- 2021 BMW Z4 3.0L Turbo (B58)
- 2022 BMW Z4 3.0L Turbo (B58)
- 2023 BMW Z4 3.0L Turbo (B58)
- 2024 BMW Z4 3.0L Turbo (B58)
- 2025 BMW Z4 3.0L Turbo (B58)
- 2020 Toyota GR Supra 3.0L Turbo (B58)
- 2021 Toyota GR Supra 3.0L Turbo (B58)
- 2022 Toyota GR Supra 3.0L Turbo (B58)
- 2023 Toyota GR Supra 3.0L Turbo (B58)
- 2024 Toyota GR Supra 3.0L Turbo (B58)
- 2025 Toyota GR Supra 3.0L Turbo (B58)
Contact Beefcake Racing
Beefcake Racing is your trusted source for ATI Super Dampers and performance upgrades for the Toyota Supra and BMW Z4. For fitment assistance or to order, email sales@beefcakeracing.com or call 1-855-827-7223. Our team of enthusiasts is ready to help you build a smoother, stronger, and faster B58-powered machine.
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