- 1991-1999 1G & 2G DSM
The STM Fast Idle Air Valve Bypass Plate is cut from 1/8" aluminum and when sandwiched in the lower half of the throttle body, this blocks the unwanted FIAV passages, allowing you to retain a factory appearance and keep your ISC functional.
*Does not work with 1990 DSM throttle bodies.
*You will also need an OEM O-ring Seal for the FIAV.
**Please Note: STM's drop ship fee is included with the total shipping cost**