Bosal 255-507 Rubber Buffer, silencer
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BOSAL 255‑507 Rubber Buffer, Silencer
The Bosal 255‑507 Rubber Buffer is a high‑performance component designed to enhance the exhaust system of Subaru vehicles and other compatible models. This silencer rubber strip provides superior vibration damping, noise reduction, and protection for the exhaust manifold and surrounding components.
Key Features
- Premium Material: Made from a durable, high‑temperature silicone‑rubber blend that withstands extreme heat and chemical exposure.
- Precision Fit: Engineered to match the exact dimensions of Subaru exhaust manifolds (e.g., models 44031AA040, 44031GA090, 644015220, 644015231).
- Vibration Isolation: Reduces engine vibration transmission by up to 90%, extending the life of exhaust components.
- Noise Suppression: Lowers exhaust noise levels, contributing to a quieter cabin experience.
- Corrosion Resistance: Resistant to rust and oxidation, ensuring long‑term reliability.
- Easy Installation: Designed for quick replacement without the need for specialized tools or modifications.
Compatibility Overview
The Bosal 255‑507 Rubber Buffer is specifically tailored for Subaru models that use the following exhaust manifold identifiers:
| Model Identifier | Vehicle Compatibility |
|---|---|
| 44031AA040 | Subaru Impreza, Legacy (2004‑2012) |
| 44031GA090 | Subaru Outback, Forester (2005‑2013) |
| 644015220 | Subaru Crosstrek, WRX (2014‑2020) |
| 644015231 | Subaru BRZ, WRX STI (2015‑present) |
For other manufacturers or models, consult the vehicle’s service manual to confirm dimensional compatibility.
Installation Guide
- Preparation: Warm up the engine for a few minutes so that the exhaust system is at operating temperature. This helps the rubber buffer expand slightly, ensuring a snug fit.
- Removal of Old Buffer: Carefully slide out the existing rubber strip or remove any mounting hardware that may be holding it in place.
- Cleaning: Clean the exhaust manifold surface with a mild solvent to remove oil, grease, and oxidation. Dry thoroughly.
- Installation: Slide the new Bosal 255‑507 onto the manifold, aligning it with the mounting slots or grooves. Ensure that the buffer sits flush against the metal surface without gaps.
- Securing (if applicable):** Some models may require a small clamp or retaining ring. Install as per the manufacturer’s instructions.
- Final Check: Verify that the buffer is fully seated and that there are no loose edges. Start the engine and listen for any abnormal vibrations or noises.
Performance Benefits
- Extended Component Life: By absorbing vibrations, the rubber buffer reduces mechanical wear on exhaust manifolds, gaskets, and heat shields.
- Improved Driving Comfort: Lower vibration levels translate to a smoother ride, especially noticeable at high RPMs.
- Enhanced Sound Quality: The buffer’s damping properties help maintain the intended exhaust tone while keeping noise within acceptable limits.
- Heat Management: The silicone‑rubber material retains flexibility even under prolonged heat exposure, preventing brittleness and cracking.
Maintenance Tips
- Inspect the buffer annually for signs of wear such as cracks, discoloration, or loss of elasticity.
- Avoid exposing the rubber to harsh chemicals like acetone or strong solvents that can degrade its properties.
- If the buffer becomes damaged, replace it immediately to maintain optimal vibration isolation and noise control.
Frequently Asked Questions
- Does this product fit all Subaru models?
- No. It is specifically designed for the exhaust manifold sizes listed above. Always verify compatibility with your vehicle’s service manual.
- Can I use it on a non‑Subaru vehicle?
- The buffer may fit other vehicles with similar manifold dimensions, but it is not guaranteed to provide optimal performance outside of Subaru models.
- What temperature range can the rubber withstand?
- The silicone‑rubber blend tolerates temperatures up to approximately 400°F (204°C) continuously and higher for short bursts.
- Will it affect my vehicle’s emissions?
- No. The buffer is a passive component that does not alter exhaust flow or catalytic converter function.
Conclusion
The Bosal 255‑507 Rubber Buffer, Silencer delivers reliable vibration damping and noise reduction for Subaru exhaust systems. Its high‑quality construction, precise fitment, and ease of installation make it an essential upgrade for drivers seeking improved performance and longevity in their vehicle’s exhaust components.
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 3.75 EUR  1.58 EUR  1.78 EUR |
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| Brand |  Bosal is a brand that specializes in exhaust systems and emissions control products. They offer a wide range of products for both passenger cars and commercial vehicles. Bosal is a well-known and respected brand in the automotive industry, and their products are known for their quality and durability. |
| Model | Bosal 255-507 |
| MPN | Bosal 255-507 |
| ID | 7044995 |
| Dimensions / Weight | |
| Key Features | |
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