Ferrea Exhaust Titanium Retainer Kit - VW/Audi / 4.2T 40V

Ferrea Exhaust Titanium Retainer Kit - VW/Audi / 4.2T 40VActual part may differ from image above. This Kit Includes 16 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

Actual part may differ from image above.


This Kit Includes 16 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 Ferrea’s 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 & SL1026 Exhaust Spring Seat Locator.

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