aFe Silver Bullet Throttle Body Spacer - Ford F-150 5.0L 2011-2020 / Mustang 5.0L 2011-14 Midspoiler They are 48-51” in length

They are 48-51” in length to accommodate a broad variety of applications

eliminating any sudden neck-down in diameter found on lesser designs

25" secondary piping

Direct Replacement in Tesla Model 3 or Model Y with No Core or Downtime Required

aFe Silver Bullet Throttle Body Spacer - Ford F-150 5.0L 2011-2020 / Mustang 5.0L 2011-14 Midspoiler They are 48-51” in lengthSerrated Helix Design: The Serrated Helix design creates air turbulence in the intake manifold. This turbulence increases the air pressure in the combustion chamber, resulting in increased performance and improved throttle response. The Serrated Helix combination design also reduces intake whistle that occurs with helix only designs (US PAT 07055513). 6061 T6 Billet Aluminum Construction: All Silver Bullet throttle body spacers are precision machined