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2015-2019 6.7L Ford powerstroke 4"downpipe Exhaust

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FITMENT
- 2015-2019 Ford F-250 / F-350 / F-450 Super Duty Super Duty Diesel Pickup Truck
DESCRIPTION
Product Overview
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Many truck owners install a cold air intake, flash a tune, and swap the DPF delete pipe, yet wonder why the turbo still feels choked.
- The factory 15-19 downpipe features a brutal, flattened section to clear the bellhousing that pinches your exhaust flow down to a pathetic 2.5 inches.
- It permanently cures the notorious factory heat shield rattle, prevents flex pipe cracks under high boost, and serves as the absolute foundation for any high-performance 6.7L build.
Key Features
- Heavy-Duty T409 SS Shell: Built from heavy-gauge T409 stainless steel to defend against severe thermal shock, high-EGT stress, and corrosive winter road salt.
- Smash the 2.5" Bottleneck: Replace the heavily pinched factory pipe. The uniform 4" diameter provides unhindered exhaust velocity directly from the turbine wheel outlet.
- Reinforced Flex Protection: Upgrade the weakest link. The high-performance flex section withstands the intense exhaust temperatures and increased vibrations of tuned trucks without split or leak risks.
- Instant VGT Turbo Spool: Erase low-end turbo lag completely. Near-zero turbo backpressure allows the compressor to spool up faster, which delivers a sharp, immediate throttle response.
FAQ
Q: I already have a 4" DPF delete pipe installed. Do I really need to replace my stock downpipe?
A: Yes, if you want full performance. factory 15-19 downpipe is pinched down to 2.5 inches to clear the transmission. This means exhaust still chokes right at the turbo exit. Upgrade this 4" Downpipe removes this ultimate restriction and allows engine to breathe in a uniform 4" path from start to finish.
Q: Which mid-pipe or full exhaust setup should I buy to pair with this 2015-2019 Downpipe?
A: To maximize your airflow and build a complete high-flow system, we highly recommend you pair this downpipe with 4" DPF Delete pipe or 4"/5" Full Exhaust.
Q: Will this 4" downpipe fit a 11-14 or a 20+ Ford 6.7L Powerstroke?
A: No, it will not. The 11-14 trucks utilize a different factory turbocharger setup and the 20+ trucks have entirely different engine bay clearances. If you drive a 20-24 model, please purchase 4" Downpipe.
Q: Why should this downpipe be the first thing I upgrade on my 15-19 truck?
A: Beyond the 2.5" airflow restriction, the stock downpipe welded heat shields crack and rattle at idle, and the factory flex pipe splits open under high-boost tunes. This 4" upgrade fixes all three issues at once.
Built by diesel guysTrusted by diesel guys
Derek W.
Verified buyerRunning between three rig sites every week, was burning through DEF in about 2 weeks. Getting 6 weeks per jug now. Regen lockouts used to cost me half a day in the field, that's done with.
Chris D.
Verified buyerGot four trucks on the ranch, did this one first to see how it'd go. Eight months in, no codes, pulls hay like she's new again. Other three are getting done before winter.
Travis M.
Verified buyerTowing the boat down to the Keys used to kill me at 11 mpg. Got 15.4 last trip, same boat, same route. Pipe looks stock from the outside, none of my buddies even noticed it's gone.
Mike R.
Verified buyerHauled my horses from Fort Worth up to Amarillo last month, got 17.8 empty on the way back. Was running around 13 before. Pulls a lot better up the grades too, didn't expect that part.
Jason T.
Verified buyerUsed to go into regen every 280 miles when I was loaded down, now I'm pushing 580 with no regen at all. EGTs run way cooler too pulling the skid steer. Wish I had done this sooner, honestly.
Brandon L.
Verified buyerBought it used and the previous guy had wiped the delete history clean. Got everything put back the right way, ran the protocol, passed smog first try. Truck finally drives like it should.
Trusted by 10,000+ american diesel owners
2015-2019 6.7L Ford powerstroke 4" downpipe Exhaust
Guaranteed Fitment
American Owned
24/7 US Support
Free USA Shipping
Every Bundle Includes
Install it in your driveway
Unbox & inspect
15 min
Flash ECU & verify
20 min
Remove stock components
60 - 90 min
Install hardware kit
45 - 60 min
TRUE AMERICAN DIESELVS.OTHER RETAILERS

24/7 access to a real mechanic - not a chatbot or ticket queue
Support hidden behind contact forms and multi-day email replies
Guaranteed Fitment Or Your Money Back - every kit, every truck
Compatibility warnings buried in fine print, after you've already paid
5,000+ verified reviews, sorted by your exact engine platform
One generic review count for every truck on the site
Proven 5–8 MPG gain - real dyno results, not a marketing guess
Vague performance claims with no data behind them
Lifetime warranty, spelled out in plain terms - no fine print maze
Vague "we'll fix it" warranty language, no stated terms
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Got questions?
The stuff that keeps you up at night before you commit. Answered in plain talk by guys who actually wrench on these trucks.
A full mandrel-bent stainless DPF and CAT delete pipe, EGR block-off plates and gaskets, DEF delete components, all mounting hardware and clamps, and your preloaded tuner with the custom tune for your VIN. We don't ship anything you don't need, and we don't leave anything out that you do.
No. The custom tune disables the codes the deleted hardware would otherwise throw. Dash stays clean. If a real fault code pops up after install, call our line and a tech walks you through it. Usually it's a sensor that got unplugged during the wrench work, takes 5 minutes to sort out.
We pull your VIN before we ship. Engine, year, trim, cab config, all verified against the kit. If it doesn't fit your truck, you send it back and we either ship the right kit or refund you in full. Fitment is on us, not you. That's why we call it a fitment guarantee.
Most of our customers do. Average install is 2 to 4 hours with basic hand tools, sockets, ratchet, jack stands. You'll get the step-by-step install video emailed after purchase and a 24/7 phone line if you get stuck. If you can change your own oil, you can run our protocol.
Real custom files. Built in-house by guys who've been turning wrenches and writing tunes on Cummins, Duramax, and Powerstroke platforms for years. Every tune is dialed to your year, your engine, and how you actually drive the truck. No outsourced generic tunes pulled off a shared drive.
Once we've got the base files for your platform, dialing it in for your specific truck takes about 20 minutes. Charging $300 for that didn't sit right with us. We'd rather give you the better experience and earn the call when your buddy's truck needs help.
You call us. Real diesel techs, US-based, picking up the phone. We help with install troubleshooting, tune adjustments, fitment issues, codes, anything. We don't disappear after the sale, and the line doesn't go to voicemail. Phone number is at the bottom of every email and on every page of this site.
Yes. The custom tune is reversible, flash the stock file back through your tuner and the truck reads as factory again. The only thing that's permanent is the deleted hardware itself, but most buyers in the diesel community see a properly executed delete as a value-add, not a deduction. We can also ship the OEM-style reverse plates if you want to put the factory exhaust back on for resale.
Lifetime warranty on the stainless delete pipe, no rust-through, no cracks, ever. 2-year warranty on the EGR delete plates, gaskets, and hardware. If anything fails, we ship a replacement same day. The tuner itself carries the manufacturer warranty through EZ Lynk or HP Tuners.
Orders ship from Fort Worth within 1 to 2 business days. Free express shipping anywhere in the lower 48. Most orders land in 3 to 5 days. You'll get tracking the second it leaves the shop.











