GSC P-D BMW S58 Beehive Valve Spring & Ti Retainer Kit (Max Boost 70PSI)

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