Ferrea valve springs are developed from high strength alloys, including premium grade chrome silicone steel These springs are manufactured with state-of-the-art equipment. Ferrea springs are heat-treated and stress-relieved, which dramatically increases the spring's life. Strict quality control procedures and cycle testing ensures consistency from batch to batch. Ferrea valve springs provide the stability needed for high lift, high rpm racing and street car engines. Kit includes a set of 24 springs. MUST be used with the Ferrea Spring Seat and Titanium Retainers. See links below. 

https://www.turnermotorsport.com/e/p-163-e36-325-328-m3-ferrea-spring-seat-set/ 

https://www.turnermotorsport.com/e/p-31-e36-325-328-m3-ferrea-titanium-retainer-set/

This item fits the following BMWs:
1992-1998 E36 BMW 323is 323ic 325i 325is 325ic 328i 328is 328ic M3
1991-1995 E34 BMW 525i

Upgrade Your Mini's Engine Performance with MINI W10 W11 Performance Valve Springs Kit - Single Groove SPRK-HM1007BE/MC2 SPR-HM1007BE/MC2

Enhance your Mini's engine performance with the MINI W10 W11 Performance Valve Springs Kit - Single Groove SPRK-HM1007BE/MC2 SPR-HM1007BE/MC2. This comprehensive kit is designed to optimize valve operation and improve engine efficiency. With high-quality materials and precision engineering, it ensures durability and reliability for your Mini's engine.

Benefits:

• Optimizes valve operation for improved engine performance
• High-quality materials ensure durability and reliability
• Precision engineering for enhanced engine efficiency
• Compatible with Mini W10 and W11 engines

MINI R50 to R53 Performance Valve Springs Kit - Triple Groove SPRk-TS1015-mc is designed for high-performance engines that require enhanced valve control. This kit mounts directly to the stock OEM retainers and is ideal for performance builds demanding superior spring characteristics.

Key benefits of the MINI R50 to R53 Performance Valve Springs Kit - Triple Groove SPRk-TS1015-mc include:

• Dual Valve Spring Design: Provides increased stability and durability under high performance conditions.
• High Pressure Ratings: Offers a seat pressure of 76 lbs @ 34.80 mm and an open pressure of 210 lbs @ 11 mm, ensuring reliable valve control.
• Extended Lift Capability: Supports a maximum lift of 14.00 mm, allowing for more aggressive camshaft profiles.
• Precision Specifications: Includes dimensions of OUTSPR.OD 27.50 mm, OUTSPR.ID 20.00 mm, INNSPR.OD 20.00 mm, and INNSPR.ID 15.20 mm for accurate fitting.
• Durable Construction: Coil bind at 20.70 mm and rate of 12.10 mm ensure long-lasting performance and resistance to wear.
• Complete Set: Includes 16 springs for a full engine overhaul.

URO Cold Start Valve - BMW M30 Engines - 13641358917

URO Cold Start Valve - BMW M30 Engines - 13641358917 is designed to restore proper cold start functionality in BMW vehicles equipped with the M30 engine. This high-quality replacement valve ensures smoother engine starts, especially in cold weather, by controlling the flow of fuel during startup. Manufactured to OE specifications, it offers reliable performance and long-lasting durability. The URO Cold Start Valve is an essential component to maintain optimal engine operation and avoid potential cold-start issues.

Key Benefits:

• Optimized Engine Start: Ensures smooth engine starts, especially in cold weather conditions.
• OE Replacement: Manufactured to original equipment specifications for a perfect fit and reliable performance.
• Improved Fuel Flow Control: Regulates fuel flow during startup to prevent hesitation and rough idling.
• Durable Construction: Made with high-quality materials to withstand engine heat and harsh operating conditions.
• Long-Term Reliability: Designed for durability, ensuring long-lasting function and protection against common cold-start issues.

Performance Valve Spring Kit

This valve spring kit, designed for performance built engines, is a critical component for those demanding peak performance from their vehicles. The kit includes a set of 16 springs that mount to the stock OEM retainers.

Key Features:

• Valve Spring Type: Beehive Spring
• Outer Spring Outer Diameter: 23.30mm
• Outer Spring Inner Diameter: 16.80mm
• Inner Spring Outer Diameter: 18.80mm
• Inner Spring Inner Diameter: 12.30mm
• Pressure Seat: 65 @ 33.6mm
• Pressure Open: 163 @ 10
• Maximum Lift: 11.40mm
• Coil Bind: 22.20mm
• Spring Rate: 9.80mm
• Retainer: OEM Retainer + OEM Seat

Upgrade your engine's performance with this high-quality valve spring kit, ensuring optimum power and reliability.