Description
Vacuum-operated exhaust (VOE) switches are critical for managing boost pressure and exhaust flow in forced-induction applications. This Drag Specialties unit delivers reliable, repeatable performance across a wide range of setups, whether you’re running a street machine or dedicated drag platform. With precise calibration at 4″ HG, you get consistent engagement without the guesswork—critical for tuning carburetor pull-through systems or controlling secondary elements under boost.
- 4″ HG activation threshold
- Vacuum-operated design
- OEM replacement compatible
- Custom bracket mounting available
- Drag racing application-ready
- Reliable pressure switching
- MPN: 2101-0009
