aFe 15-19 Subaru Outback H4 2.5L Silver Bullet Throttle Body Spacer 1978-chrysler-town---country-base-esi4427240 Monoloc's hardened Chrome-moly steel construction

Monoloc's hardened Chrome-moly steel construction will provide years of service

The system has an Exhaust Valve

No additional spring change necessary

9L) Standard Main Bearing Set w/ Extra Oil Clearance

aFe 15-19 Subaru Outback H4 2.5L Silver Bullet Throttle Body Spacer 1978-chrysler-town---country-base-esi4427240 Monoloc's hardened Chrome-moly steel constructionThe 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 other helix only designs. All Silver Bullet Throttle Body Spacers are precision machined from 6061 T6 billet aluminum for lightweight, high strength, and