aFe Silver Bullet Throttle Body Spacer for 06-10 BMW 5 Series (E60) V8-4.8L

aFe Silver Bullet Throttle Body Spacer (46-31006) enhances airflow and throttle response for 2006–2010 BMW 5 Series E60 with 4.8L V8 engine. Made from durable T-6061 billet aluminum, this spacer features a unique serrated/helix design that generates turbulence prior to air entry, promoting better atomization and combustion. The design helps increase horsepower and torque while avoiding the whistle noise typically associated with helix-only designs. It’s a simple, bolt-on upgrade for improved engine performance and efficiency. Key Features : CNC-machined T-6061 billet aluminum construction Serrated/helix combo design enhances turbulence and combustion Improves throttle response and fuel efficiency Reduces annoying whistle noise found in standard spacers Easy installation; bolts to factory throttle body Installation Instructions