Billetworkz Engine Bay Caps Zero Series Silver 2015-2026 Subaru WRX with Fluid Engraving | BW-EBCZ-SUB-VAWRX-SIL-E In-Line Modules Motor is suffocating

Motor is suffocating

eliminating chances for spark plug contamination

Also keep your fingers wet so that the adhesive does not pull dirt or oil off of them

- Impreza WRX STi 2004-2007

reduce effective octane

Billetworkz Engine Bay Caps Zero Series Silver 2015-2026 Subaru WRX with Fluid Engraving | BW-EBCZ-SUB-VAWRX-SIL-E In-Line Modules Motor is suffocatingThese caps are designed to be factory replacement caps, not covers. CNC machined from 6061 aluminum and anodized for a durable and vibrant finish. The internal fitting from the OEM caps must be reused with these caps. They pry out carefully with gentle pressure and then snap into place. 2015+ WRX includes: Oil Cap Wiper Fluid Cap Coolant Overflow Cap Brake Fluid Cap