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COBB Tuning - 02-07 WRX, 04-07 STI, 05-09 LGT/OBXT, 06-09 LGT Spec B, 04-08 FXT – MAF Block Off

Part Number 712070
COBB Tuning - 02-07 WRX, 04-07 STI, 05-09 LGT/OBXT, 06-09 LGT Spec B, 04-08 FXT – MAF Block Off
COBB Tuning - 02-07 WRX, 04-07 STI, 05-09 LGT/OBXT, 06-09 LGT Spec B, 04-08 FXT MAF Block Off
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$45.00
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Description
The COBB Tuning MAF Block-Off Plate Kit is theperfect complement to Speed Density tuning and Blow Through MAF intakeconficurations. Speed Density tuned vehicles use a Manifold AbsolutePressure (MAP) sensor to monitor the mass of ingested air instead of theOEM Mass Airflow (MAF) sensor, which means the MAF sensor can beremoved from the intake tube. Removing the MAF sensor eliminates a pointof restriction and turbulence in the intake tract, but can presentadditional issues if not done properly. The COBB Tuning MAF Block-OffPlate is the easiest way to safely delete the MAF sensor for optimalperformance and enhanced engine bay appearance.

Blow-Through MAF set-ups relocate the MAF sensor between the turbo andthe throttle-body. The COBB MAF Block-Off Plate Kit allows the originalMAF tube to be used after the MAF sensor has been relocated by coveringup the hole left behind, preventing unfiltered air from entering thesystem.

We start with billet 6061 T6 aluminum and CNC-machine a plate/plug toseal off the opening left when the MAF sensor is removed. The plug hastwo unique features that are key to reliable performance. The first isan O-ring that tightly seals the Block-Off Plate to the MAF sensoropening, preventing unfiltered air from entering the intake tract. Thesecond feature is the shape of the plug face, which is sculpted toexactly match the inside curve of the MAF tube. When seated, the plugcompletey fills the MAF sensor opening and the face sits flush with theinside of the MAF tube. This provides smooth, uninterrupted walls thatprevent turbulence.

The COBB MAF Block-Off Plate is hard anodized in black for a durable,corrosion resistant finish. The Block-Off Plate then go back on the CNCmill for a final pass to have the COBB logo machined into the top face.The kit is finished off with stainless steel button-head screws andblack nylon washers that gives the plate a professional appearance wheninstalled. The COBB MAF Block-Off Plate Kit works with the stock intake,COBB SF Intake and any direct replacement intake with an inner diametersimilar to stock.
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