COBB 771650 XLE By-Pass Valve - Mazdaspeed3 07-13 & Mazdaspeed6 06-07 Image1
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XLE By-Pass Valve - Mazdaspeed3 07-13 & Mazdaspeed6 06-07

  • Holds high levels of boost

  • Extremely fast venting

  • 6061 T6 Aluminum Construction


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Product Details

COBB XLE By-Pass Valve - Mazdaspeed3 07-13 & Mazdaspeed6 06-07


The COBB XLE BPV is a compact and lightweight by-pass valve that is capable of holding very high boost pressure without leaking. Its unique design allows for extremely fast venting of boost when actuated. It is designed to operate in multiple venting modes and can be quickly reconfigured using simple hand tools. Innovative engineering and precision manufacturing result in a compact package able to fit in the confines of a tight engine bay.

The XLE BPV is able to vent pressurized air more quickly than other bypass valves due to several unique design elements. Due to the low weight of the components, the moving parts in the XLE BPV have less inertia and can respond faster than heavier components in other bypass valves. Furthermore, the shapes of the exhaust port and piston face are designed to evacuate air as quickly as possible. The third design element is treatment of the piston with hard anodizing and a Teflon coating that provides low sliding friction, reduces surface wear and minimizes maintenance requirements.



  • Valve vents pressurized air very quickly due to lightweight components, port shape and low sliding friction
  • Unique exhaust sound due to speed of air release
  • Construction materials make the XLE BPV compatible with alcohol/water injection due to inherent corrosion resistance
  • Lighter than most aftermarket BPVs and BOVs
  • Adjuster allows adjustment of spring preload for fine tuning release pressure


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Vehicle Applications

Years Make Model Trim Chassis Engine Notes
Mazda 3 Mazdaspeed      
Mazda 3 Mazdaspeed      
Mazda 3 Mazdaspeed      
Mazda 3 Mazdaspeed      
Mazda 3 Mazdaspeed      
Mazda 3 Mazdaspeed      
Mazda 3 Mazdaspeed      
Mazda 6 Mazdaspeed      
Mazda 6 Mazdaspeed