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  • Flowmaster 21-25 F-150 Outlaw Direct Fit Muffler - 818171
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Flowmaster 21-25 F-150 Outlaw Direct Fit Muffler - 818171
Flowmaster 21-25 F-150 Outlaw Direct Fit Muffler - 818171
Flowmaster 21-25 F-150 Outlaw Direct Fit Muffler - 818171
Flowmaster 21-25 F-150 Outlaw Direct Fit Muffler - 818171
Flowmaster 21-25 F-150 Outlaw Direct Fit Muffler - 818171
Flowmaster 21-25 F-150 Outlaw Direct Fit Muffler - 818171
Flowmaster 21-25 F-150 Outlaw Direct Fit Muffler - 818171
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Load image into Gallery viewer, Flowmaster 21-25 F-150 Outlaw Direct Fit Muffler - 818171
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Flowmaster 21-25 F-150 Outlaw Direct Fit Muffler - 818171

Exhaust, Mufflers & Tips Muffler
Flowmaster
flo818171
In stock
$462.67 $538.95
This Flowmaster® Outlaw Direct-Fit Muffler system for the 2021-2026 Ford F-150 trucks with the 2.7, 3.5 or 5.0-liter engines is manufactured using durable 409 stainless steel throughout and features 3.00-inch mandrel bent pipes for optimum exhaust gas flow. A Flowmaster Outlaw Series muffler is used for an aggressive sound level and maximum performance. Performance increases on the dyno revealed an increase of 16 hp and 21 ft/lbs. at the rear wheels. This system connects directly to the factory dual tail pipes and uses all the existing factory hangers. Includes installation instructions and all necessary hardware for an easy installation that you can do at home. Backed by Flowmaster's Lifetime Limited Warranty. This system replaces ONLY the Factory muffler and over axle pipes and reuses the factory dual tail pipes and tips. Does not fit PowerBoost hybrid models. Does not fit models with OEM active exhaust option. Features & Benefits Powerful exhaust note with an aggressive sound level that’s a perfect balance of sound and power Connects directly to the factory dual tailpipes for a simple installation Flowmaster Outlaw series muffler offers race proven performance Large 3.0-inch Mandrel bent pipes for superior flow and power Max power gains of 16 hp...
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$731.95 $609.92
Flowmaster 24-25 Mustang 2.3L/5.0L Outlaw-Axle-Back-W/VLVES Exhaust System - 818164
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Flowmaster 21-25 F-150 Outlaw Direct Fit Muffler - 818171
SKU: flo818171
Product Details

Everything You Need To Know

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

Product Info

This Flowmaster® Outlaw Direct-Fit Muffler system for the 2021-2026 Ford F-150 trucks with the 2.7, 3.5 or 5.0-liter engines is manufactured using durable 409 stainless steel throughout and features 3.00-inch mandrel bent pipes for optimum exhaust gas flow. A Flowmaster Outlaw Series muffler is used for an aggressive sound level and maximum performance. Performance increases on the dyno revealed an increase of 16 hp and 21 ft/lbs. at the rear wheels. This system connects directly to the factory dual tail pipes and uses all the existing factory hangers. Includes installation instructions and all necessary hardware for an easy installation that you can do at home. Backed by Flowmaster's Lifetime Limited Warranty.

This system replaces ONLY the Factory muffler and over axle pipes and reuses the factory dual tail pipes and tips. Does not fit PowerBoost hybrid models. Does not fit models with OEM active exhaust option.

Features & Benefits

  • Powerful exhaust note with an aggressive sound level that’s a perfect balance of sound and power
  • Connects directly to the factory dual tailpipes for a simple installation
  • Flowmaster Outlaw series muffler offers race proven performance
  • Large 3.0-inch Mandrel bent pipes for superior flow and power
  • Max power gains of 16 hp and 21 lb-ft at the rear wheels
  • 409 stainless steel constuction for extra durability
  • Lifetime limited Warranty

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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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