Billetworkz Engine Bay Caps Zero Series Black 2015-2021 Subaru STI with Fluid Engraving | BW-EBCZ-SUB-VASTI-BLK-E Vehicle Model_Q40 Protect your device with the

Protect your device with the built-in foreign object detection feature

helping your engine breathe cleaner

and will also restore any excessive shifter movement due to tired or worn out shifter bushings

If even more flow is needed

Billetworkz Engine Bay Caps Zero Series Black 2015-2021 Subaru STI with Fluid Engraving | BW-EBCZ-SUB-VASTI-BLK-E Vehicle Model_Q40 Protect your device with theThese caps are designed to be factory replacement caps, not covers. CNC machined from 6061 aluminum and anodized for a durable and vibrant finish. 2015+ STI Includes: Oil Cap Wiper Fluid Cap Coolant Overflow Cap Brake Fluid Cap Power Steering Fluid Cap