Diode Dynamics 28mm SMF2 LED Bulb Warm - White (Pair) Subaru-STI-2017 Handles elevated boost pressures of

Handles elevated boost pressures of modified FA20DIT builds

and to provide a more aggressive tone

5 Liter TV1B4

some will come equipped with a radiator cap

Platform: 2002-2026 Subaru WRX

Diode Dynamics 28mm SMF2 LED Bulb Warm - White (Pair) Subaru-STI-2017 Handles elevated boost pressures ofFeatures Direct replacement for factory 28mm festoon bulb Adds more modern LED appearance Plug and play simple installation Overview Design. The 28mm SMF2 LED bulb is a direct replacement for any 28mm size bulb commonly found in vanity mirror lights in many vehicles. Populated with two 5050 size SMDs the SMF2 upgrades the factory yellowish incandescent bulb to a more modern LED appearance while adding far more total light output than the factory bulb.