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How it Installation?

Step 1:

Please ensure the vehicle has been turned off and cooled down before proceeding with any further operations.

Step 2:

First, the inner fender of the passenger-side front wheel needs to be removed to make it easier to access the original exhaust downpipe for hardware installation.After removing the inner liner, loosen the clamps that secure the lower section of the exhaust downpipe to the upper section. Once the clamps are loosened, the two bolts securing the lower exhaust downpipe can be removed.

Step 3:

Finally, remove the two nuts and two studs securing the lower section of the exhaust downpipe to the passenger-side cylinder head. After removing them, pry and shake the exhaust downpipe until it detaches from the upper section. It may be necessary to remove two exhaust downpipe hangers to move the exhaust downpipe and create sufficient working space at the bottom.

Step 4:

Now you can begin disassembling the upper part. First, loosen the 11mm nut on the T-bolt clamp, then remove the lower exhaust downpipe clamp that connects the upper part and the rear of the turbine.

Step 5:

After removing the exhaust downpipe clamp, you can remove the 10mm bolts that secure the upper exhaust downpipe to the engine cover. Then, begin installing the 4-inch stainless steel exhaust downpipe.

Step 6:

Secure the upper assembly to the rear of the turbocharger using the exhaust downpipe clamp. To facilitate rotation of the upper assembly, the clamp does not need to be tightened too much. Then, reinstall the 10mm bolts onto the rear cover to secure the exhaust downpipe . After tightening the bolts, tighten the nuts on the exhaust downpipe clamp.

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Step 7:

Next, install the lower assembly. Install the clamps that came with your package onto the exhaust downpipe, making sure the nuts are facing the firewall. Slide the lower assembly into place and install it onto the upper assembly. Reinstall the two studs and two nuts to secure it in place.

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Step 8:

After tightening the nuts and studs, the clamps that secure and seal the lower component to the upper component can be tightened.

Step 9:

After securely connecting the two exhaust pipe sections, reconnect the exhaust system to the exhaust downpipe. Check for leaks; if there are no issues, reinstall the mudguard liner.

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TruckTok 2020-2024 6.7L Ford powerstroke 4
0%, only 860 left
TruckTok 2020-2024 6.7L Ford powerstroke 4
TruckTok 2020-2024 6.7L Ford powerstroke 4
TruckTok 2020-2024 6.7L Ford powerstroke 4
TruckTok 2020-2024 6.7L Ford powerstroke 4
TruckTok 2020-2024 6.7L Ford powerstroke 4
TruckTok 2020-2024 6.7L Ford powerstroke 4
TruckTok 2020-2024 6.7L Ford powerstroke 4
TruckTok 2020-2024 6.7L Ford powerstroke 4

TruckTok 2020-2024 6.7L Ford powerstroke 4" downpipe Exhaust

$269.99

FITMENT

  • 2020-2024 Ford Powerstroke F-250 / F-350 / F-450 Super Duty Diesel Pickup Truck
  • Note: This is a 4" downpipe. It connects the turbocharger outlet to the mid-section exhaust.

DESCRIPTION

Product Overview

  • Many truck owners remove the DPF only to find their turbo response still lags. The culprit? The factory 20+ downpipe features a heavily crimped, flat section to clear the crossmember, which pinches the exhaust flow down to 3 inches or less.
  • This premium 4" SS Downpipe replaces that pinched factory restriction with a uniform, mandrel-bent 4-inch structure straight from the turbo exhaust housing.
  • It eliminates the #1 remaining restriction in your exhaust path, unleashes instantaneous VGT turbo response, and drives down hazardous exhaust heat.

Key Features

  • Heavy-Duty T409 SS Build: Engineered from rugged T409 stainless steel to withstand intense thermal shocks, underhood heat cycles, and harsh road salt.
  • Eliminate Crimped Bottleneck: Replace the flattened factory pipe. The uniform 4" diameter ensures unrestricted exhaust velocity from the turbo outlet to the tailpipe.
  • Faster Turbo Spool: Clear out backpressure directly at the turbine wheel. This allows the turbo to shed spent air instantly, which reduces turbo lag and delivers snappier throttle response.
  • Lower EGTs When Towing Heavy: Prevent exhaust heat from trap against the engine block. The high-flow design evacuates hot gases rapidly to lower EGTs significantly under heavy trailer loads.

FAQ

Q: I already installed a DPF delete pipe. Why do I need to upgrade to this 4" Downpipe?

A: Because factory downpipe is the new bottleneck. To clear the frame, Ford flattened a section of the stock pipe down to under 3 inches. Even with the DPF gone, exhaust still chokes at this narrow pinch point. Upgrading to this 4" Downpipe creates a true, uniform 4" path for maximum efficiency.

Q: Can I install this 4" downpipe if I want to keep my factory DPF emissions system intact?

A: Yes, you can. If factory downpipe is rusted or cracked, this serves as a heavy-duty, high-flow replacement that bolts directly into the stock emissions canister. No delete tuner is required if you retain the factory DPF setup.

Q: Will this 4" downpipe trigger a Check Engine Light (CEL) on my dash?

A: If connect it to a stock factory DPF system, it will not throw codes. However, if you use it to run a full DPF delete setup, you must flash truck with a proper delete tuner like our Mini Maxx Tuner V2 to disable the emission sensors permanently.

Q: Which delete pipe should I buy to pair with this 4" Downpipe for a complete turbo-back system?

A: This downpipe connects perfectly to any DP-Back Exhaust pipe. To build a complete high-flow system from the turbo all the way to the exhaust tip, pair this downpipe with match options: 17-22 4" DP-Back or 5" DP-Back Exhaust.

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