The aFe Silver Bullet Throttle Body Spacer in black is a CNC-machined spacer for the 2.0L four-cylinder Toyota Corolla that mounts between the throttle body and the intake. The manufacturer makes it from 6061-T6 billet aluminum with a black anodized finish, and its serrated/helix entry is designed to create controlled turbulence as air enters the engine. It is the black variant aFe offers for this platform, and the manufacturer states it is CNC-machined in the USA. Shoppers searching for a Silver Bullet TBS for a Corolla 2.0L will find this is the black, billet, bolt-on option.
Compared with a stock setup, the main reasons to buy are the billet construction and the serrated/helix entry, which the manufacturer says reduces the whistle that helix-only spacers produce. An O-ring seal is included to help keep the joint leak-free. The manufacturer cites dyno-proven gains of up to +3 HP and +3 lb-ft, but owners on user forums have questioned whether spacers produce measurable power at all, so treat this as a throttle-response and sound upgrade rather than a guaranteed power adder. Fitment is the first thing to verify: the manufacturer lists the Corolla L4-2.0L for model years 2019 through 2026, while other listings show narrower year ranges, so confirm your exact year and trim before ordering.
The manufacturer's product page lists the Toyota Corolla L4-2.0L for 2019 through 2026, but listings across the web show different year and trim coverage. Confirm your exact model year and trim with the manufacturer before ordering.
The manufacturer states this spacer works with both the factory intake and aFe POWER intake kits.
The manufacturer cites dyno-proven gains of up to +3 HP and +3 lb-ft. Users on forums have reported spacers showing no measurable dyno gain, so results may vary.
Because the manufacturer says this spacer uses the factory mounting locations, it is designed as a bolt-in part that needs no new mounting points. Follow the manufacturer's instruction manual for the correct step order and hardware. Inspect the O-ring seal and both mating faces before reassembly, since the seal is what keeps the joint leak-free. Installation difficulty and the full tool list were not confirmed during research, so review the manual before starting.
