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.
