Bosal 185-469 End Silencer
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BOSAL 185-469 End Silencer
The BOSAL 185-469 End Silencer is a high‑performance exhaust component designed to fit seamlessly into the rear exhaust system of various Opel and Vauxhall models, including the Astra H series (Schrägheck, GTC, Caravan) and related variants. Engineered with precision, this silencer delivers optimal sound attenuation while maintaining exhaust flow efficiency.
Key Design Features
- Material Composition: Constructed from premium stainless steel, the silencer resists corrosion and high temperatures, ensuring longevity even under demanding driving conditions.
- Compact Geometry: The compact shape allows for easy installation in tight rear engine bays without compromising airflow.
- Integrated Muffler System: Combines a resonator and muffler chamber within a single unit, providing effective noise reduction across a wide frequency range.
- Heat‑Shielding Layer: An internal heat shield reduces thermal transfer to surrounding components, enhancing safety and component life.
- Threaded Connection: Features standard threaded ends compatible with OEM exhaust manifolds, facilitating straightforward bolt‑on installation.
Performance Benefits
The BOSAL 185-469 End Silencer is engineered to deliver a balanced blend of sound dampening** and **exhaust flow efficiency**. By reducing back pressure, the silencer helps maintain engine performance while keeping cabin noise within acceptable limits.
- Reduced Exhaust Back Pressure: Allows for smoother exhaust gas evacuation, contributing to better throttle response.
- Consistent Sound Profile: Maintains a pleasant exhaust note that aligns with the vehicle’s design ethos.
- Improved Fuel Economy: Efficient flow reduces engine load, potentially leading to marginal fuel savings over time.
Compatibility Overview
The silencer is specifically tailored for a range of Opel and Vauxhall models. Below is an organized list of compatible vehicles, grouped by model series:
| Model Series | Engine Variants | Vehicle Types |
|---|---|---|
| Astra H Schrägheck (A04) | 1.6 LPG, 1.8, 2.0 | 3/5‑door hatchback |
| Astra H GTC (A04) | 1.6, 1.8, 2.0 | Sport hatchback |
| Astra H Caravan (A04) | 1.6 LPG, 1.8, 2.0 | Station wagon |
| Astra MK V (H) Estate | 1.6, 1.8, 2.0 | Estate/estate‑wagon |
| Other Vauxhall/Opel variants | Various power outputs up to 140 CV | All body styles within the Astra H family |
Installation Guide
Installing the BOSAL 185-469 End Silencer is a straightforward process that can be completed with basic mechanical tools. Follow these steps for optimal results:
- Preparation: Ensure the vehicle’s engine is cool and disconnect the battery to avoid accidental electrical discharge.
- Remove Existing Exhaust Component: Loosen and remove bolts securing the current rear muffler or end silencer. Carefully detach the unit, noting any gasket or sealant that may need replacement.
- Inspect Mounting Surfaces: Clean the mounting surfaces on both the exhaust manifold and the new silencer to eliminate rust, debris, or old gasket material.
- Apply New Gasket: Place a fresh high‑temperature gasket between the silencer’s threaded end and the manifold. Ensure it sits flush for an airtight seal.
- Attach Silencer: Thread the BOSAL 185-469 End Silencer onto the exhaust manifold, tightening bolts in a cross‑pattern to distribute pressure evenly.
- Check Alignment: Verify that the silencer is properly aligned and that there are no gaps or misalignments that could cause leaks.
- Reconnect Battery & Test: Reconnect the battery, start the engine, and listen for any abnormal noises. Inspect for exhaust leaks around the new installation.
Maintenance Tips
While the BOSAL 185-469 End Silencer is built for durability, regular checks can extend its lifespan:
- Periodic Inspection: Every 10,000 km or annually, inspect the silencer for signs of corrosion, dents, or loose bolts.
- Clean Exterior: Gently wash the exterior with mild soap and water to remove road grime; avoid abrasive cleaners that could damage the finish.
- Check Seals: Replace any worn gaskets or seals during routine maintenance intervals.
Technical Specifications
| Specification | Value |
|---|---|
| Material | Stainless Steel (304/316) |
| Thread Size | M12 x 1.25 mm |
| Operating Temperature Range | -40 °C to +400 °C |
| Weight | Approximately 2.5 kg |
| Dimensions (L x W x H) | 250 mm × 120 mm × 140 mm |
| Noise Reduction Rating | Up to 12 dB(A) at 2000 Hz |
Why Choose BOSAL?
BOSAL is a globally recognized brand in automotive exhaust systems, known for its commitment to quality and performance. The 185-469 End Silencer exemplifies this reputation through:
- Precision Engineering: Each unit undergoes rigorous testing to meet OEM standards.
- Durability: Stainless steel construction resists rust, corrosion, and high temperatures.
- Performance Integrity: Maintains engine tuning while delivering a refined exhaust sound.
Conclusion
The BOSAL 185-469 End Silencer is an essential component for owners of Opel and Vauxhall vehicles seeking reliable, high‑quality exhaust performance. Its robust construction, thoughtful design, and proven compatibility make it a top choice for both everyday driving and enthusiast applications.
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 92.60 EUR  110.38 EUR  95.18 EUR  112.28 EUR |
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| Identifiers | |
| 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 185-469 |
| MPN | Bosal 185-469 |
| ID | 7044135 |
| Dimensions / Weight | |
| Key Features | |
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