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  • Flowmaster 04-08 Ford F150 American Thunder SS Exhaust System - 817417
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Flowmaster 04-08 Ford F150 American Thunder SS Exhaust System - 817417
Flowmaster 04-08 Ford F150 American Thunder SS Exhaust System - 817417
Flowmaster 04-08 Ford F150 American Thunder SS Exhaust System - 817417
Flowmaster 04-08 Ford F150 American Thunder SS Exhaust System - 817417
Flowmaster 04-08 Ford F150 American Thunder SS Exhaust System - 817417
Flowmaster 04-08 Ford F150 American Thunder SS Exhaust System - 817417
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Flowmaster 04-08 Ford F150 American Thunder SS Exhaust System - 817417

Exhaust, Mufflers & Tips Catback
Flowmaster
flo817417
Special order
September 23, 2026
Not CARB compliant. Not legal for sale or use in California on emissions-controlled vehicles.
$1,002.80 $1,257.95
This Flowmaster American Thunder® cat-back exhaust system for the 2004-2008 Ford F-150 and Lincoln Mark LT trucks with the 4.6L or 5.4L engines, is perfect for the person looking for a deep aggressive exterior sound with a moderate interior tone, and with all of the performance benefits that you would expect from Flowmaster®. This bolt-on DOR/DOS (Dual Out Rear or Dual Out Side) emissions-legal exhaust system features 16-gauge mandrel-bent stainless steel tubing flowing into a specially designed Super 40™ Series performance muffler with dual 2.50-inch stainless steel tailpipes which use the factory hanger locations for an easy installation. The tailpipes exit either behind the rear wheels, which is ideal for towing, or straight out the back under the rear bumper for a muscular look. The system is finished off with a pair of large 3.00-inch polished stainless steel tips. The exhaust system is covered by our Lifetime Limited Warranty and includes all necessary parts and hardware for an easy installation you can do at home. For those who prefer all aluminized steel construction with a 3-year Limited Warranty, check out exhaust system #17417. Note: Fits 2/4 wheel drive models all wheelbases. Fits 2004-2008 Ford F-150 and Lincoln Mark LT truck...
Flowmaster 64-66 Mustang V8 American Thunder SS Crossmember-Back Exhaust System - 817273
Flowmaster 64-66 Mustang V8 American Thunder SS Crossmember-Back Exhaust System - 817273
$1,406.95 $1,121.21
Flowmaster 87-93 Mustang 5.0L LX /86 GT American Thunder SS Cat-Back Exhaust System - 817213
Flowmaster 87-93 Mustang 5.0L LX /86 GT American Thunder SS Cat-Back Exhaust System - 817213
$977.95 $779.45
Flowmaster 04-08 Ford F150 American Thunder SS Exhaust System - 817417
SKU: flo817417
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 exhaust system for the 2004-2008 Ford F-150 and Lincoln Mark LT trucks with the 4.6L or 5.4L engines, is perfect for the person looking for a deep aggressive exterior sound with a moderate interior tone, and with all of the performance benefits that you would expect from Flowmaster®. This bolt-on DOR/DOS (Dual Out Rear or Dual Out Side) emissions-legal exhaust system features 16-gauge mandrel-bent stainless steel tubing flowing into a specially designed Super 40™ Series performance muffler with dual 2.50-inch stainless steel tailpipes which use the factory hanger locations for an easy installation. The tailpipes exit either behind the rear wheels, which is ideal for towing, or straight out the back under the rear bumper for a muscular look. The system is finished off with a pair of large 3.00-inch polished stainless steel tips. The exhaust system is covered by our Lifetime Limited Warranty and includes all necessary parts and hardware for an easy installation you can do at home. For those who prefer all aluminized steel construction with a 3-year Limited Warranty, check out exhaust system #17417. Note: Fits 2/4 wheel drive models all wheelbases.

Fits 2004-2008 Ford F-150 and Lincoln Mark LT truck with 4.6L or 5.4L engine, fits 2/4 wheel drive models and all wheelbases.

Features & Benefits

  • Features a Specially Designed Super 40 Series Performance Muffler
  • Includes Hangers and Hardware for an Easy Installation
  • Mandrel bent 16-gauge Aluminized Steel Tubing
  • Dual 3.00-inch Polished Stainless Steel Tips
  • Moderately Aggressive Exterior Sound
  • Dyno Tuned for Maximum Performance
  • Uses the Factory Hanger Locations
  • Includes Dual Tailpipe Exits
  • Lifetime Limited Warranty
  • Easy Installation
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In Stock Items:
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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