The aFe Silver Bullet throttle body spacer for the 2014-2019 Chevrolet Corvette C7 with the 6.2L V8 is a machined spacer that mounts between the throttle body and the intake. The manufacturer describes its serrated/helix entry as creating turbulence just before air enters the engine. It is precision machined from 6061-T6 billet aluminum, and the serrated/helix combination is meant to reduce the intake whistle that helix-only spacers produce.
Compared with stock, the value here is a quieter, machined upgrade. The manufacturer's in-house dyno testing reports maximum gains of +8 HP and +10 lb-ft of torque, and it presents the spacer as a bolt-on way to sharpen throttle response without a full intake swap. Owners on user forums have questioned the test conditions behind that dyno chart, so treat the figures as the manufacturer's claim rather than a guarantee. For a C7 owner searching for a Silver Bullet TBS 46-34011 upgrade, a billet 6061-T6 unit with a serrated entry is a more deliberate choice than a plain spacer.
Fitment and installation are the practical checkpoints. The manufacturer says the spacer uses the factory mounting locations, which means no drilling and a simple bolt-on process. The manufacturer also lists a silicone coupler as included. Before ordering, confirm intake compatibility, especially if you run an aFe POWER intake, because compatibility details vary across sources. Search terms this part targets include C7 Corvette throttle body spacer, 6.2L LT1 throttle response, and Z51 or Grand Sport intake whistle.
The manufacturer lists this spacer for the Chevrolet Corvette C7 with the 6.2L V8 for model years 2014 through 2019.
The manufacturer reports dyno-tested maximum gains of up to +8 HP and +10 lb-ft of torque. Owners on user forums have debated the dyno test conditions, so results on your car may differ.
The manufacturer describes this spacer as a simple install because it reuses the factory mounting locations, so no drilling is required. Plan to remove the intake tube, separate the throttle body, fit the spacer with its gasket or O-ring and silicone coupler, and then tighten the clamps evenly to seal the joint. Torque values and the exact tool list were not confirmed in my research, so follow the manufacturer's installation instructions before you start.
