1. はじめに
This manual provides detailed instructions for the installation, operation, and maintenance of your Gibson Performance Exhaust 18808 Aluminized Dual Rear Exhaust System. This system is designed to replace the factory exhaust, offering a bolt-on solution without requiring welding.
The Gibson 18808 system features aluminized, 2.5-inch mandrel-bent heavy-duty tubing, a Superflow performance muffler, and 3.5-inch polished T304 stainless steel round slash-cut tips. The exhaust exit is straight out the back of the vehicle.

画像1.1: 以上view of the Gibson Performance Exhaust 18808 system components, including muffler, piping, and dual tips.
2. 安全情報
Always prioritize safety during installation and operation. Wear appropriate personal protective equipment, such as safety glasses and gloves. Ensure the vehicle is securely supported on jack stands or a lift before working underneath it. Allow the exhaust system to cool completely before handling to prevent burns.
カリフォルニア州の警告: この製品を使用すると、カリフォルニア州でがんや先天性欠損症、その他の生殖障害を引き起こすことが知られている鉛などの化学物質にさらされる可能性があります。詳細については、 www.p65warnings.ca.gov.
3. セットアップとインストール
The Gibson 18808 exhaust system is designed for hassle-free bolt-on installation. No welding is required. It includes zinc-plated factory-style hangers, clamps, and all necessary hardware.
3.1. 必要なツール
- ソケット/レンチセット
- てこバー
- Penetrating Lubricant
- 安全メガネ
- 手袋
- 車両リフトまたはジャッキスタンド
3.2. インストール手順
- 車両の準備: Park the vehicle on a level surface. Engage the parking brake. Allow the exhaust system to cool completely. Lift the vehicle using a hoist or securely place it on jack stands.
- Remove Factory Exhaust:
- Locate and loosen all clamps and bolts securing the factory exhaust system.
- Use penetrating lubricant on rusted fasteners if necessary.
- Carefully remove the factory exhaust system from the hangers. It may be necessary to cut the exhaust in sections for easier removal, depending on the vehicle model.
- Install New System Components:
- Refer to the diagram (Image 3.1) for component placement.
- Begin by installing the head pipe, connecting it to the catalytic converter. Do not fully tighten bolts yet.
- Attach the muffler assembly to the head pipe.
- Install the two tailpipes and then the two exit pipes, ensuring they align correctly with the vehicle's undercarriage and hangers.
- Attach the 3.5-inch polished T304 stainless steel round slash-cut tips to the exit pipes.
- Ensure all components are properly seated in the factory-style hangers.
- 位置合わせと締め付け:
- Once all components are loosely installed, adjust the system for optimal alignment and clearance from the vehicle's frame, suspension, and body.
- Ensure the exhaust tips are positioned as desired, exiting straight out the back.
- Starting from the front of the vehicle, progressively tighten all clampとボルト。
- 最終チェック: Lower the vehicle. Start the engine and check for any exhaust leaks. Listen for any rattles or vibrations. Adjust as necessary.

Image 3.1: Schematic diagram illustrating the general layout of the exhaust system components from the catalytic converter to the dual tips.

Image 3.2: The Gibson 18808 exhaust system installed on a vehicle, showcasing the dual rear exit and polished tips.
4. Operation and Performance Characteristics
The Gibson 18808 system is designed to deliver a powerful "big block" sound. Users can expect a noticeable change in exhaust tone compared to the factory system. The Superflow performance muffler is engineered to decrease backpressure, which can result in increased torque and horsepower.
Performance characteristics may vary based on vehicle make, model, engine type, and other modifications.
5. メンテナンス
The Gibson Performance Exhaust system is constructed from durable aluminized steel and T304 stainless steel tips, designed for longevity. Regular maintenance is minimal but recommended:
- 定期点検: Annually inspect all clamps, hangers, and connections for tightness and signs of wear or corrosion. Tighten any loose fasteners.
- クリーニング: The polished stainless steel tips can be cleaned with a non-abrasive metal polish to maintain their luster.
- 腐食チェック: While aluminized steel offers good corrosion resistance, inspect the system periodically for any signs of rust, especially in areas exposed to road salt or harsh weather conditions.
6。 トラブルシューティング
インストール後に問題が発生した場合は、次の点を考慮してください。
- ガタガタ音や振動:
- Ensure all hangers are properly seated and not touching the vehicle's frame or body.
- Check for adequate clearance between the exhaust pipes and other vehicle components. Adjust alignment if necessary.
- すべてのclを検証ampボルトがしっかりと締め付けられていることを確認します。
- 排気漏れ:
- Inspect all connection points for leaks. A common method is to feel for escaping air or listen for a hissing sound.
- clを確認してくださいamps are tight and properly positioned over pipe joints.
- 適合の問題:
- Some aftermarket components (e.g., tow hitches) may interfere with exhaust routing. Verify compatibility before installation.
- If pipes appear ovalized or difficult to fit, minor reshaping may be required.
If problems persist, consult a professional automotive technician or contact Gibson Performance Exhaust customer support.
7. 仕様
| ブランド | ギブソン |
| モデル番号 | 18808 |
| メーカー部品番号 | 18808 |
| チューブ材質 | アルミめっき鋼 |
| チューブ径 | 2.5 inches (mandrel-bent) |
| Muffler Type | Superflow Performance |
| 先端材質 | T304ステンレス鋼 |
| 先端直径 | 3.5インチ |
| Exit Style | Dual Rear, Straight Out |
| インストール | Bolt-on, No Welding Required |
| アイテム重量 | 49.1ポンド |
| 製品寸法 | 41 x 30 x 13インチ |
8. 保証情報
The Gibson Performance Exhaust 18808 Aluminized Dual Rear Exhaust System is backed by a 生涯限定保証この保証は、通常の使用およびサービスにおける材料および製造上の欠陥を対象としています。具体的な条件、規約、および請求手続きについては、Gibson Performance Exhaustの公式保証書を参照するか、カスタマーサポートにお問い合わせください。
9. サポート
For further assistance, technical support, or warranty inquiries regarding your Gibson Performance Exhaust system, please contact Gibson Performance Exhaust directly. Contact information can typically be found on their official webサイトまたは製品のパッケージ。
Manufacturer: Gibson Performance Exhaust





