SKU: 5023
GSC Power-Division BMW S58 Beehive Valve Spring & Ti Retainer Kit (Max Boost 70PSI) 2020+
This GSC Power-Division kit equips BMW S58 engines with beehive valve springs and titanium retainers built for extreme boost and RPM. It fits 2020+ BMW M3, M4, X3 M, X4 M, and M2 models with the S58 3.0L twin-turbo engine. Expect stable valve operation up to 10,000 RPM and 70PSI boost to support forced induction builds without float.
Key Features
- Beehive Spring Design: Progressive beehive shape cuts valvetrain mass by 20% over stock for quicker response and higher rev limits.
- Titanium Retainers: Lightweight at 7 grams each with .050" lock groove clearance ensures durability under high boost loads.
- Spring Pressures: 175lbs seat at 1.720" and 525lbs open at 1.200" deliver firm control to resist valve float at 70PSI.
- Coil Bind Height: 0.780" with 285lbs/in rate allows safe operation to 10,000 RPM in race applications.
- Complete Kit: 24 beehive springs and 24 Ti retainers cover full cylinder head for direct S58 replacement.
Product Notes
- Inspect valvetrain components during install for compatibility with aftermarket cams.
- Maintain proper installed heights using GSC height cards for optimal pressure.
- Ships in protective foam-lined box to prevent spring damage.
Installation Notes
- Professional installation recommended.
- Requires spring compressor tool rated for 600lbs pressure.
- Compatible with OEM locks and seats. no machining needed on stock heads.
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2023-2024 | BMW | M2 | G87 S58 3.0L |
| 2021-2024 | BMW | M3 | G80 S58 3.0L Base/Comp/CSL |
| 2021-2024 | BMW | M4 | G82/G83 S58 3.0L Base/Comp/CSL |
| 2020-2024 | BMW | X3 M | G01 S58 3.0L Base/Comp |
| 2020-2024 | BMW | X4 M | G02 S58 3.0L Base/Comp |
Why Choose GSC Power-Division?
- Proven in drag racing and track events with S58 builds pushing 1000+whp.
- CNC machined in USA from premium materials for consistent pressures.
- Backed by dyno testing data and real-world boost validation to 70PSI.
Frequently Asked Questions
-
Q: Does this fit non-Competition S58 models?
A: Yes, direct bolt-on for all 2020+ BMW S58-equipped M3, M4, X3 M, X4 M, and M2 variants including base, Competition, and CSL. -
Q: What materials are used in the springs and retainers?
A: High-tensile steel beehive springs with chrome silicon wire and forged titanium retainers for heat resistance up to 1000F. -
Q: Is there a warranty on this kit?
A: GSC offers a 1-year unlimited mileage warranty against manufacturing defects when installed by certified shops.
Shipping & Handling
- Method: UPS Ground or FedEx
- Availability: In stock - ships same or next business day
- Packaging: Foam inserts in 14x10x8 inch corrugated box
- Weight: 6 lbs
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