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IAG TGV / Lower Intake Plenum - Complete Upper/Lower Replacement - 15-19 WRX

The IAG Performance 2015 - 19 WRX lower intake plenums completely replace the OEM tumbler generator valves as well as the separate lower plastic plenums on your turbocharged Subaru FA20 DIT engine. IAG's WRX lower intake plenums are designed to improve flow and performance by eliminating the diverter in the OE lower plenum. The plenums are CNC machined from billet aluminum and do not require porting modifications, cores, or damage to your original OEM parts in case you ever need to return the vehicle to stock. The plenums are simple to install requiring only basic hand tools and roughly 1-2 hours of time. 

*ECU calibration is required. Possible engine damage may occur without calibrating the ECU after installation. 

  • (x2) CNC Machined Lower Intake Plenums
  • (x14) Socket Head Bolts
  • (x14) Flat Washers
  • Does not include OEM seals which are available separately.

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