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 IN STOCK - LOW 46-30003The Serrated/Helix design creates air turbulence in the intake manifold. This turbulence increases the air pressure in the combustion chamber resulting in increased horsepower, torque, and improved throttle response. The Serrated/Helix combination design also reduces intake whistle that occurs with ... aFe 15-19 Subaru Outback H4 2.5L Silver Bullet Throttle Body Spacer 2015-2019 Subaru Outback 2.5i / 2.5i Limited / 2.5i Premium 2017-2019 Subaru Outback 2.5i Touring $138.82 |