Compressive Tuning Burn Series Engine Bay Caps (Set of 4) - 2015-2021 Subaru STI, 2015-2021 Subaru WRX, 2014-2018 Subaru Forester

Compressive Tuning Burn Series Engine Bay Caps (Set of 4) - 2015-2021 Subaru STI, 2015-2021 Subaru WRX, 2014-2018 Subaru Forester

The Compressive Tuning Burn Series Engine Bay Caps are precision CNC machined from 6061-T6 billet aluminum and anodized in red or matte bronze to replace the factory plastic reservoir caps.

6061-T6 Billet Aluminum Burn Series Engine Bay Caps

The Compressive Tuning Burn Series Engine Bay Caps are precision CNC machined from 6061-T6 billet aluminum and anodized in red or matte bronze to replace the factory plastic reservoir caps. The 6061-T6 alloy provides exceptional strength and corrosion resistance -- meaningfully more durable than the factory plastic units, with a finish that holds up to engine bay heat and cleaning over time.

CNC Precision and Compressive Tuning Logo Etching

Each cap is precision CNC machined for direct thread-on fitment to the OEM reservoir ports, with the Compressive Tuning logo etched into the surface. The set covers the key accessible caps in the engine bay. Two finish options are available at order -- anodized red for builds with a red accent theme, or matte bronze for a more subtle, premium look. Each cap in the Burn Series is meticulously crafted in-house using premium billet aluminum, a material prized for its balance of strength and lightweight properties. The anodized finishes are applied

Key Features

• Premium 6061-T6 billet aluminum construction for exceptional strength and durability
• Precision CNC machining ensuring perfect fitment and seamless integration
• Available in anodized red or matte bronze finishes for a bold, customized look
• Set of four caps covering oil, wiper fluid, coolant overflow, and brake fluid reservoirs
• Corrosion-resistant surface treatment to maintain finish quality over time
• Direct replacement parts designed specifically for Subaru engine bays

Fitment Notes

• Fits 2014-2018 Subaru Forester
• Fits 2015-2021 Subaru STI
• Fits 2015-2021 Subaru WRX

Straight From Subispeed

The Burn Series caps are one of the most visible and immediate improvements available for the engine bay on these platforms. The billet aluminum and anodized finish look substantially better than OEM plastic at a price point that makes them a no-brainer for any build getting engine bay attention. Confirm the specific set size (4-piece or 5-piece) for your application and select finish at order.

About Compressive Tuning

Compressive Tuning is a Colorado-based manufacturer specializing in precision-crafted carbon fiber and CNC aluminum accessories for Subaru performance builds. Every product is developed and manufactured in-house, allowing tight control over fitment accuracy, finish quality, and design consistency. Their catalog covers exterior aero components, engine bay dress-up, and functional aerodynamic upgrades -- all developed specifically for the platforms they support rather than adapted from generic designs.