GFB - Go Fast Bits 5711 Foam Filter for Atmosphere-Venting Blow Off Valves

The GFB - Go Fast Bits 5711 blow off valve filter is a foam filter designed to protect atmosphere-venting BOVs (blow-off valves) that run in dirty environments. It helps keep dirt, sand, mud and other debris out of the valve.

Key Features:

• Foam filter element with internal steel reinforcement for durability
• Large filter area sized to keep restriction on BOV operation to a minimum
• Supplied with a stainless steel clamp
• Fits a 38mm (1.5") BOV outlet

Many small breather-style filters limit how fast a BOV can dump air. The 5711's larger filter area is intended to avoid that, so the valve can still vent freely while the foam element protects it.