Flowmaster 15-20 F150 2.7L/3.5L/5.0L Outlaw SS Cat-Back Exhaust System

Flowmaster's Outlaw cat-back for the 2015-2020 Ford F-150 is for the owner who wants the truck to sound aggressive from the curb while the cab stays at a moderate level. Part number 817726 is a bolt-on 409S stainless steel system with a Super 10 series muffler, and you pick whether the tips exit out the rear or out the sides.

Why Upgrade to the Outlaw Cat-Back

Per Flowmaster, here is what the Outlaw changes:

• Aggressive sound outside the truck with a moderate level inside, so it announces itself at a stoplight without turning a long highway pull into a chore. The cabin claim is Flowmaster's, not ours, so expect more noise than stock either way.
• A 3.00-inch mandrel-bent inlet tube feeding the Super 10 series muffler, then dual 2.50-inch mandrel-bent tailpipes out the back.
• Large 4.00-inch tips in black ceramic coated stainless steel, which is the part everyone sees at the bumper, in black rather than bare metal.
• Your choice of exit: out the rear under the bumper for the muscular look, or out the sides behind the rear tires. Flowmaster points anyone towing an RV, boat or trailer to the side exit.
• Bolt-on 409S stainless steel construction, with all necessary parts and hardware included so the install can happen in your own driveway.

Fitment Notes

Fits 2015-2020 Ford F-150 (Base). Does not fit the F-150 Raptor. Flowmaster lists the system for all 2WD and 4WD trucks and all wheelbases, "except Standard Cab/Short Bed models" in Flowmaster's own words, and that is as specific as the maker gets about cab and bed. [VERIFY: engine coverage, since the title lists the 2.7L, 3.5L and 5.0L while Flowmaster's copy also lists the 3.3L and 3.5L TiVCT, and which cab and bed combinations Flowmaster means by Standard Cab/Short Bed. Confirm both against your truck before ordering.]

More Cat-Back that fit your F-150

Install and Honest Talk

It is a cat-back, so the swap starts behind the catalytic converters and this system takes over from there. Flowmaster calls it a bolt-on with all necessary parts and hardware in the box, designed for an install you can do at home. Before you touch a wrench, settle the exit question: rear under the bumper, or sides behind the rear tires. If you tow, Flowmaster's own advice is the side exit, and that decision shapes how the truck looks from behind for as long as the system is on it.

Honest talk: aggressive exterior sound means the neighbors hear every cold start, and the moderate interior level is Flowmaster's description, not a promise of a stock-quiet cab. The 4.00-inch tips are black ceramic coated, so whether they suit what is already on the back of your truck is your call before you buy, not after. Flowmaster excludes "Standard Cab/Short Bed models", and which cab and bed combinations that covers is flagged under Fitment Notes. What else you need: Flowmaster says all necessary parts and hardware are included. [VERIFY: tools, whether a lift is needed, and whether the exit choice is made at order time or at install.]

Specs

• Brand: Flowmaster
• Part number: 817726
• Part type: Catback
• Quantity: [VERIFY: quantity per part number]
• Material: 409S stainless steel
• Inlet: 3.00-inch mandrel-bent
• Muffler: Super 10 series
• Tailpipes: Dual 2.50-inch mandrel-bent
• Tips: 4.00-inch black ceramic coated stainless steel
• Exit options: Rear under the bumper, or side behind the rear tires
• Drivetrain: 2WD and 4WD

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Free US shipping over $99

Orders over $99 ship free by ground to the lower 48 states. Alaska, Hawaii and Canada are not included; shipping to those addresses is calculated at checkout. Some oversize or heavy parts (long-tube exhausts, bumpers, full lift kits) go freight instead of parcel: free to a commercial address with a loading dock, and residential freight delivery carries an additional charge.

When it ships

Parts ship direct from the distributor warehouse that stocks them, so dispatch timing depends on the part, not on a single cutoff. You get a confirmation with tracking as soon as it leaves, and tracking shows the delivery estimate for your address. If a part is backordered we email you an expected availability date.

Missing or damaged items

Report a short shipment or shipping damage within 5 business days of delivery. For a packing error, send us the date or package code printed on the label along with the part number so we can trace it with the warehouse.

We have a 30-day return policy, which means you have 30 days after receiving your item to request a return.

To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase.

To start a return, you can contact us at help@anythingcoyote.com or fill our our contact form. If your return is accepted, we’ll send you a return shipping label, as well as instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted. 

You can always contact us for any return question at help@anythingcoyote.com.

Damages and issues
Please inspect your order upon reception and contact us immediately if the item is defective, damaged or if you receive the wrong item, so that we can evaluate the issue and make it right.

Exceptions / non-returnable items
Certain types of items cannot be returned, like perishable goods (such as food, flowers, or plants), custom products (such as special orders or personalized items), and personal care goods (such as beauty products). We also do not accept returns for hazardous materials, flammable liquids, or gases. Please get in touch if you have questions or concerns about your specific item.

Unfortunately, we cannot accept returns on sale items or gift cards.

Exchanges
The fastest way to ensure you get what you want is to return the item you have, and once the return is accepted, make a separate purchase for the new item.

Refunds
We will notify you once we’ve received and inspected your return, and let you know if the refund was approved or not. If approved, you’ll be automatically refunded on your original payment method. Please remember it can take some time for your bank or credit card company to process and post the refund too.