Billetworkz Engine Bay Caps Zero Series Blue 2015-2021 Subaru STI with Fluid Engraving | BW-EBCZ-SUB-VASTI-BLU-E Vehicle Model_Lancer Evolution High-Flow Core - Optimizes heat

High-Flow Core - Optimizes heat transfer and minimizes flow restriction for turbo Subaru's

Powder coated for durability

The urethane mounts are much more rigid than the soft

Smooth bends create obstruction-free flow

Billetworkz Engine Bay Caps Zero Series Blue 2015-2021 Subaru STI with Fluid Engraving | BW-EBCZ-SUB-VASTI-BLU-E Vehicle Model_Lancer Evolution High-Flow Core - Optimizes heatThese 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