Cometic Subaru 89.5mm Bore .032in MLX Head Gasket - Right Subaru WRX 2015-2021 | C4955-032

Product Fitment: 2015-2021 Subaru WRX The Cometic MLX Head Gasket C4955‑032 is engineered to deliver reliable, high-performance sealing for the right cylinder head of Subaru FA20 engines (such as the 2015–2021 WRX VA). With its multi-layer steel + “stopper” design, this gasket offers excellent durability under boost, thermal cycling, and aggressive tuning. Key Features & Benefits MLX (Multi-Layer Stopper) design — Combines strength and sealing capability with an internal stopper layer for improved resistance to distortion 0.032″ (≈ 0.81 mm) compressed thickness — Tight tolerance for precise sealing performance Three-layer steel / laminate construction — Adapts to slight surface irregularities and maintains sealing integrity No sealants or re-torque required — Simplifies installation and reduces opportunity for error High thermal and mechanical resistance — Suitable for high-boost, tuned, or motorsport applications Right-side (RHS) orientation — Must be paired with the left-side counterpart (C4954‑032) to rebuild both heads Specifications Spec Value Part Number C4955‑032 Engine Compatibility Subaru FA20 (WRX VA / FA20DIT setups) Orientation Right-hand side (RHS) head Compressed Thickness 0.032″ Bore Size 89.5 mm Construction MLX / Multi-layer steel + stopper Layers 3 Use Case Performance, boosted, high-stress / motorsport environments Installation & Usage Notes Ensure the head and block surfaces are machined to spec (flat, clean, correct tolerances) Use the correct torque sequence and specification as recommended for your engine Since the MLX gasket is engineered as “no re‑torque / no extra coating,” avoid applying additional sealants unless explicitly needed During initial startup and break-in, monitor for leaks, coolant pressures, and temperature consistency For high boost/tuning builds, re‑inspect sealing after first heat cycles