Breather Hose - BMW E6x 525i 525xi 530i 530xi / E9x 325i 325xi 330i 330xi / Z4 3.0i 3.0SiThe Vaico Breather Hose is an ideal high quality aftermarket replacement that is manufactured to meet or exceed OE specifications for fit, form, and function. Features and Benefits: Premium aftermarket replacement Provides performance and dependability Manufactured to meet OE specifications Part # 11 15 7 522 931 11 15 7 522 931 11157522931 Fitting Position: Crankcase

This product was tested thoroughly on the street and track on 034Motorsport's in-house B9 Audi A4 Development Vehicle before release

Please Note: One vehicle requires 2 mounts per axle or 4 mounts total

Standard valve springs OK (235 duration @

This is done when the brake booster is plumbed directly to the intake manifold

1J0-615-302-A / 1J0615302 A / 1J0 615 302 A / 1J0615302A

MFR Part # 1700-83488

The DVX offers a TRUE PERFORMANCE improvement

Black anodized velocity stack cover

Other pumps available use an unnecessarily stiffer spring

Sold by a pair

57 inch 65 mmTravel: 3

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