Cobb Tuning XLE Blow off Valve Kit - Mazdaspeed3 2007-2013-MazdaSpeed 6 2006-2007

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The COBB XLE BOV can operate in one of three modes with simple adjustments.

Full recirculation is achieved by plumbing the primary output back into the intake pre-turbo with the auxiliary port closed.

Full atmosphere is possible by opening both the primary port and auxiliary port to atmosphere.

A hybrid mode is also possible by pluming the primary port into the intake and leaving the auxiliary port open to atmosphere, causing much of the air to recirculate to retain driveability, while still creating an audible exhaust of some of the boost pressure.

Spring preload determines the pressure differential across the BOV piston required before the BOV opens and releases the pressurized intake charge. The COBB XLE BOV can be adjusted by loosening the locknut and turning the hex-head shaft clockwise for more preload or counter-clockwise for less preload. Once preload is set, the locknut is retightened and ensures the adjustment is secure.

TECH TIP: Direct bolt on kit! Includes everything for an easy installation.

Fits: Mazdaspeed 3 2007-2011