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The Redline Carbon Fiber Intake seamlessly blends elite performance and premium aesthetics to produce the ultimate intake for your 2015-2021 WRX
Subaru Silicone Turbo Inlet V2
Interchangeable faceplates
including CO2 Boost Control
APR ECU Upgrade - 2.9T EA839 V6 (B9) (RS5) McLaren 765LT The Redline Carbon Fiber IntakeAPR ECU Upgrade 2. 9T EA839 V6 (B9) (RS5) APR's ECU Upgrades are the best dollar per horsepower modification one can make to improve engine performance. The upgrades dramatically increase horsepower and torque, making for an exceptionally quicker and more exciting vehicle. This is made possible through APR's optimization of the factory engine management system to take full advantage of the engine's capabilities, without needing any end user