Ferrea Single Spring 7 Degree Pro CNC Intake Titanium Retainer | 2008 – 2012 BMW 740i & 2011 – 2013 BMW 335is (E11131) Ferrea Racing

Single Spring 7 Degree Pro CNC Intake Titanium Retainer – Set by Ferrea

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. We have available applications for 6, 7, 8 (super 7) and 10 degrees. Examine the overall quality of Ferrea€™s Pro-Series Retainers and see why professional engine builders demand Ferrea Racing Components.

Please Note: Picture are for representation only. Actual product may vary.

Features

• E60/E82/E91/E92 (N54)
• Valve Stem Size: 5 mm
• Diameter (A): 20.32 mm
• Inn Step Diameter (C): 15.74 mm
• References: INTAKE Single Spring-7 Degree Pro CNC Ferrea Racing Springs #S10158. Use Factory OEM Valve Locks

Benefits

• 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

Applications

• 2008 – 2012 BMW 740i
• 2011 – 2013 BMW 335is

What’s In The Box?

• 1 – Titanium Retainer

Warranty

• No Warranty