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  • Flowmaster 98-01 RAM 1500 3.9L 5.2L 5.9L Force II Cat-Back Cat-Back Exhaust System - 17178
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Flowmaster 98-01 RAM 1500 3.9L 5.2L 5.9L Force II Cat-Back Cat-Back Exhaust System - 17178
Flowmaster 98-01 RAM 1500 3.9L 5.2L 5.9L Force II Cat-Back Cat-Back Exhaust System - 17178
Flowmaster 98-01 RAM 1500 3.9L 5.2L 5.9L Force II Cat-Back Cat-Back Exhaust System - 17178
Flowmaster 98-01 RAM 1500 3.9L 5.2L 5.9L Force II Cat-Back Cat-Back Exhaust System - 17178
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Load image into Gallery viewer, Flowmaster 98-01 RAM 1500 3.9L 5.2L 5.9L Force II Cat-Back Cat-Back Exhaust System - 17178
Load image into Gallery viewer, Flowmaster 98-01 RAM 1500 3.9L 5.2L 5.9L Force II Cat-Back Cat-Back Exhaust System - 17178
Load image into Gallery viewer, Flowmaster 98-01 RAM 1500 3.9L 5.2L 5.9L Force II Cat-Back Cat-Back Exhaust System - 17178
Load image into Gallery viewer, Flowmaster 98-01 RAM 1500 3.9L 5.2L 5.9L Force II Cat-Back Cat-Back Exhaust System - 17178
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Flowmaster 98-01 RAM 1500 3.9L 5.2L 5.9L Force II Cat-Back Cat-Back Exhaust System - 17178

Exhaust, Mufflers & Tips Catback
Flowmaster
flo17178
Special order
September 23, 2026
Not CARB compliant. Not legal for sale or use in California on emissions-controlled vehicles.
$524.70 $658.95
This Flowmaster® American Thunder® Cat-back System is for 1998-2001 Dodge Ram 1500 trucks with 3.9L, 5.2L or 5.9L engines and 1998-2002 2500/3500 trucks with the 5.9L engine, and all wheelbases. Manufactured using durable aluminized steel, the kit features two adapter pipes that flow into the 70 Series Big Block II™ performance muffler for a deep mellow tone with minimal interior resonance. The single 3.00-inch mandrel-bent tailpipe uses the factory hanger locations for easy mounting and exits on the passenger side of the vehicle behind the rear wheel which is ideal for towing. Includes all necessary parts and hardware for an easy bolt-on installation. Covered by our 3-year Limited Warranty. Notes: Fits both 2 & 4 wheel drive models and all wheelbases. 1998-2001 Dodge Ram 1500 trucks 3.9L, 5.2L or 5.9L engines/ 1998-2002 2500/3500 with 5.9L engine, fits 2/4 wheel drive models and all wheelbases. Features & Benefits Includes Hangers and Hardware for an Easy Installation Mandrel-bent 16 Gauge Aluminized Steel Tubing 70 Series Big Block II Performance Muffler Mild Interior Tone with Minimal Drone Dyno-tuned for Maximum Performance Uses the Factory Hanger Locations Moderate Exterior Exhaust Tone Quick and Easy Installation
Flowmaster 87-96 F150 4.9L/5.0L Force II Cat-Back Exhaust System - 17135
Flowmaster 87-96 F150 4.9L/5.0L Force II Cat-Back Exhaust System - 17135
$701.95 $559.69
Flowmaster 94-01 Dodge RAM 1500 3.9L/5.2/5.9L American Thunder Exhaust System - 17171
Flowmaster 94-01 Dodge RAM 1500 3.9L/5.2/5.9L American Thunder Exhaust System - 17171
$760.95 $606.34
Flowmaster 98-01 RAM 1500 3.9L 5.2L 5.9L Force II Cat-Back Cat-Back Exhaust System - 17178
SKU: flo17178
Product Details

Everything You Need To Know

Review product information, shipping and returns, and price-match details before you order.

Product Info

This Flowmaster® American Thunder® Cat-back System is for 1998-2001 Dodge Ram 1500 trucks with 3.9L, 5.2L or 5.9L engines and 1998-2002 2500/3500 trucks with the 5.9L engine, and all wheelbases. Manufactured using durable aluminized steel, the kit features two adapter pipes that flow into the 70 Series Big Block II™ performance muffler for a deep mellow tone with minimal interior resonance. The single 3.00-inch mandrel-bent tailpipe uses the factory hanger locations for easy mounting and exits on the passenger side of the vehicle behind the rear wheel which is ideal for towing. Includes all necessary parts and hardware for an easy bolt-on installation. Covered by our 3-year Limited Warranty. Notes: Fits both 2 & 4 wheel drive models and all wheelbases.

1998-2001 Dodge Ram 1500 trucks 3.9L, 5.2L or 5.9L engines/ 1998-2002 2500/3500 with 5.9L engine, fits 2/4 wheel drive models and all wheelbases.

Features & Benefits

  • Includes Hangers and Hardware for an Easy Installation
  • Mandrel-bent 16 Gauge Aluminized Steel Tubing
  • 70 Series Big Block II Performance Muffler
  • Mild Interior Tone with Minimal Drone
  • Dyno-tuned for Maximum Performance
  • Uses the Factory Hanger Locations
  • Moderate Exterior Exhaust Tone
  • Quick and Easy Installation
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In stock items typically ship within 1-3 business days. Most items arrive within 2 business days, but there are situations where it may take up to 5 business days.

Special Order Items:
Special order and out of stock items are product-specific and lead times can vary. Please e-mail us if you are looking for an ETA / Lead Time on a specific product. Special order orders are subject to cancellation if the vendor cannot provide any ETA.

Returns Policy

To start the return process, please e-mail sales@allianceracing.com

Include the following:
Subject "Return for Order#"
Order Number
Part Number
Reason

Returns are eligible for up to 14 days from delivery of items. Accepted refunds can take up to 7-10 business days to process. All refunds are subject to a 25% restocking fee, if opened. Customer may be responsible for return shipping. If 14 days have gone by since your item was delivered, unfortunately we can’t guarantee you a refund or exchange. We reserve the right to deny any return request, based on provided information.

Alliance Racing is not responsible for ensuring part fitment. It is the responsibility of the purchaser to ensure the parts being ordered are the correct fitment for the vehicle intended. Alliance Racing will not accept any returns for incorrect fitment after product is opened.

To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging.

Shipping

To return your product, mail your product to:
Alliance Racing LLC
8810 Twin Lakes Blvd
Tampa, FL 33614

In many cases, you will be responsible for shipping costs to return your item. Shipping costs are non-refundable. If you receive a refund, the cost of shipping will be deducted from your refund.

Depending on your location, the time it may take for your exchanged product to reach you may vary.

If you are shipping an item over $100, you should consider using a trackable shipping service and/or purchasing Shipping Insurance.

To initiate a price match, please e-mail sales@allianceracing.com with the product information (SKU, URL, & Part Name) and a link to the competitors product page for us to validate the price match eligibility.

Please note that there are cases when we cannot offer a price match, but we will do everything in our power to try to match it. Some manufacturers have Pricing Policies that we have to adhere to.

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