Porsche Valve Spring Ring - 911 95-98 993-105-463-03 90142322700--GEN Adjustable Rebound and Compression: Fine-tune

Adjustable Rebound and Compression: Fine-tune the suspension's characteristics for your desired ride quality

reducing your fuel costs

Porsche Thermostat with a type IV 85 °C - 90 °C opening temperature for the thermostat flaps on the type IV engine

overvoltage

This prevents fuel starvation

Porsche Valve Spring Ring - 911 95-98 993-105-463-03 90142322700--GEN Adjustable Rebound and Compression: Fine-tunePorsche Valve Spring Ring For Porsche 993 (1995 1998) Models. A valve spring retainer is a small, typically metal component used in internal combustion engines. Its primary function is to hold the valve spring in place on the valve stem. This ensures that the valve spring can exert the necessary force to open and close the valve at the correct time, contributing to efficient engine operation. Key Features: Shape: Often conical or tapered to securely