aFe Silver Bullet Throttle Body Spacer 19-21 Toyota Corolla L4 2.0L - Black Shift Boots Brian Crower Toyota 2JZGTE/Lexus 2JZGE

Brian Crower Toyota 2JZGTE/Lexus 2JZGE 33

You will also note that ARP offers specially undercut studs for several engines

Ferrea Subaru EJ20 36mm 5

Brian Crower Honda/Acura B18C/B16A/B17A 34mm Intake Valves

aFe Silver Bullet Throttle Body Spacer 19-21 Toyota Corolla L4 2.0L - Black Shift Boots Brian Crower Toyota 2JZGTE/Lexus 2JZGEThe 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). This Silver Bullet throttle body spacer is precision machined from 6061 T6 billet aluminum for lightweight, high strength,