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The aFe Silver Bullet throttle body spacer kit for 2015–2019 Subaru Outback H6 3.6L uses a serrated/helix entry design to create intake turbulence just before the engine, aiming to break up fuel for a more complete combustion cycle. Machined from 6061‑T6 billet aluminum, it reduces helix‑only whistle, fits using factory mounting points and is supplied as a direct, hassle‑free installation kit.
aFe 15-19 Subaru Outback H6 3.6L Silver Bullet Throttle Body Spacer Kit
