The aFe Silver Bullet throttle body spacer for Audi A4 (B8) 2009–2016 2.0L turbo applications is machined from T-6061 billet aluminum with a serrated/helix entry to create controlled airflow turbulence at the manifold. It increases airflow, throttle response, torque and fuel efficiency while eliminating the whistle common to other helix spacers, and is compatible with aFe intake systems.
aFe Silver Bullet Throttle Body Spacers TBS Audi A4 (B8) 09-16 I4/2.0L Turbo