Actual part may differ from image above.

This Kit Includes 8 Ferrea Exhaust Titanium Retainers.

Ferrea is pleased to offer our Pro-Series Titanium Retainers including sizes that fit both traditional Domestic springs and Sport Compact springs. Precision CNC-machined from aerospace quality titanium, these Pro Retainers are fully heat-treated and finished to exact tolerances, adding strength while offering a 40% weight reduction over conventional steel retainers. Examine the overall quality of Ferreas Pro-Series Retainers and see why professional engine builders demand Ferrea Racing Components.

– Valve Stem Size: 6 mm
– Diameter (A): 28.20 mm
– Out Step Diameter (B): 22.85 mm
– Inn Step Diameter (C): 17.15 mm

References: Exhaust (8 pieces)Double Spring-7 Degree Pro CNC Ferrea Racing Spring # S10056 &SL1026Exhaust Spring Seat Locator.

Replaces OEM Part # 058-109-641-B / 058109641 B / 058 109 641 B / 058109641B