DIESELR Stainless Steel Header Manifolds (1999-2003 Powerstroke 7.3L)

Take your 7.3L Powerstroke to the next level with the DIESELR Stainless Steel Header Manifolds — built tough, built to last, and built to let your truck breathe like it should’ve from the factory. Designed to replace those crack-prone stock manifolds, this kit brings serious durability and flow to the table for your F250, F350, or F450.

Made from high-grade stainless steel, these manifolds resist warping, cracking, and corrosion — even under the heat and stress of towing, hauling, or full-send driving. Whether you're working the truck hard or dialing in a performance setup, these headers are up for the job.

The manifolds have been re-engineered and reinforced in all the weak points where OEMs typically fail. No more dealing with leaks or performance loss from thermal stress. Plus, every unit undergoes a rigorous inspection process to ensure top-notch quality from Doctor Diesel USA.

NOTE:
These headers do not come with an exhaust back pressure sensor bung. Depending on your turbo setup, tuning or modification may be required.

✅ Kit Includes:

• (2) Stainless steel exhaust manifolds

• (2) Cylinder head gaskets

• (4) Studs & (4) nuts for exhaust pipe flange

• (16) ARP-style 12-point exhaust manifold bolts

🔧 Fitment:

• 1999–2003 Ford Powerstroke 7.3L

• F250 / F350 / F450

• Replaces OEM Part Numbers: F81Z9431AA, F81Z9430AA

🔥 Why Upgrade?

• Stronger than stock: Redesigned in high-failure zones

• Leak-resistant: Keeps exhaust flowing where it should

• High-flow stainless design: Boosts turbo spool-up & lowers EGTs

Don’t let cracked manifolds choke your performance. Bolt on a set of DIESELR Stainless Steel Header Manifolds and give your 7.3L the airflow it deserves.