Flowmaster 99-02 Chevrolet/GMC Truck 144in. Wheelbase American Thunder Cat-Back Exhaust System
Price excluding customs duties and tax.
For the person who wants a subtle custom appearance with all the benefits that a Flowmaster Cat-back exhaust system provides. This American Thunder system delivers a moderate interior tone with a deep powerful exterior tone and is suited to the enthusiast who wants their performance to be heard. The system attaches to the back of the catalytic converter with a dual inlet 50 Series Big Block muffler for a deep powerful sound without being obnoxious. Includes a large custom formed aluminum heat shield with stainless clamps and easily attaches directly to the muffler body. The custom bent 3.00-inch aluminized steel tailpipe uses the factory hanger locations for an easy installation and exits out behind the right side rear wheel which is ideal for towing. The tailpipe is finished off with a large 3.50-inch polished 304 stainless steel tip embossed with the Flowmaster logo. Like all Flowmaster systems, the benefits include improved throttle response, power and mileage. Designed for an easy fit, these systems include all necessary parts, hardware and easy to follow instructions for a trouble free installation. Notes: Fits 2/4 wheel drive trucks with the extended cab/short bed configuration - 143.5-inch wheelbase.
- Includes an Aluminum Heat Shield for Rapid Heat Dissipation
- Includes a Large 3.50-inch Polished 304 Stainless Steel Tip
- Includes Hangers and Hardware for an Easy Installation
- Mandrel-bent 16-gauge Aluminized Steel Tubing
- Dyno-tuned for Maximum Performance
- Stainless Steel Heat Shield Clamps
- Uses the Factory Hanger Locations
- Aggressive Exterior Exhaust Tone
- Easy Installation
This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1999-2002 | Chevrolet | Silverado 2500 | Base |
| 1999-2002 | Chevrolet | Silverado 2500 | LS |
| 1999-2002 | Chevrolet | Silverado 2500 | LT |
| 2002 | GMC | Sierra 2500 | Base |
| 1999-2002 | GMC | Sierra 2500 | SL |
| 1999-2002 | GMC | Sierra 2500 | SLE |
| 1999-2002 | GMC | Sierra 2500 | SLT |
We understand how important it is for you to receive your products in a timely and efficient manner. Therefore, we have outlined our shipping policy below to provide clarity and transparency:
1. Order Processing Time:
- We strive to process all orders within 1-3 business days after receiving payment confirmation.
- Please note that processing time may be slightly longer during peak seasons and holidays.
2. Shipping Methods and Carriers:
- We work with a variety of trusted shipping carriers to ensure reliable delivery, including but not limited to UPS, FedEx and DHL.
- The specific carrier and shipping method for your order will depend on various factors such as destination, package weight, and shipping speed.
3. Shipping Time:
- Once your order has been processed and shipped, the estimated delivery time will depend on the destination and shipping method chosen.
- On average, our customers receive their orders within 7-14 business days.
- Please note that some remote locations or international destinations may require longer delivery times.
4. Tracking Information:
- To keep you informed about the progress of your order, we will provide tracking information as soon as it becomes available.
- You can track your shipment using the provided tracking number on our website or directly on the carrier's website.
5. Shipping Fees:
- Shipping fees will be calculated during the checkout process based on the weight of the package, destination, and selected shipping method.
- We may offer free shipping promotions from time to time, so make sure to check our website or subscribe to our newsletter for any ongoing offers.
- We are proud to offer international shipping to many countries worldwide.
- Please note that international shipments may be subject to customs duties, taxes, or import fees imposed by the destination country. These charges are the responsibility of the customer and may vary depending on the customs policies of the respective country.
6. Order Tracking and Customer Support:
- If you have any questions or concerns regarding your order, our customer support team is here to help.
- You can contact us through our website or email, and we will respond to your inquiries as soon as possible.
Please keep in mind that this shipping policy is subject to change without prior notice. We recommend reviewing our policy periodically for any updates.

