Riffraff Diesel Bellowed Stainless Up-pipe Kit 99.5-03

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Riffraff Diesel Bellowed 321 Stainless Up-pipe Kit 99.5-03 7.3L

The ONLY 100% Made with Domestic Materials in the USA

These bellowed up-pipes are for the 1999.5-2003 Powerstroke 7.3L and have been designed to replace the "donut" gasket that is prone to leakage and give you a more cost effective choice over International.

Our bellowed up-pipes are not only less expensive than International they are also much higher quality both in material and fitment.  Made from aircraft grade 321 Stainless Steel rather than 409 or even 304 allows for a lifetime product that won't rust or crack, ever.  Because 321SS handles significantly higher temperatures and have better tensile strength these can also be used in much higher horsepower and towing applications than the International brand. 321 Stainless Steel is immune to extreme temperatures, stabilized by Titanium, resists intergranular corrosion, and is high strength. Used for aircraft afterburners, exhaust manifolds, cabin heaters, flash boilers, firewalls, and stack liners. Not only is our tubing 321 Stainless but so are the custom thick wall bellows and upper collar. We now also include our NEW USA MADE collector that was engineered in house, and manufactured 100% in a US Foundry. 

Bellowed Up-pipes are what you need to cure those leaking stock up-pipes. It isn't a matter of IF but WHEN your factory style up-pipes will start to leak, and when they do this is your permanent answer. Because they used a bellow rather than a donut gasket these kits won't leak and will ensure you are utilizing all your boost to spool the turbo. When your factory up-pipes leak you will start to see a loss of power, mileage and a gain in EGT's. This kits come complete as pictured with everything you need to swap the leaking factory up-pipes for the new bellowed style, including hardware nuts and bolts.

Kit Includes:
- 321 Stainless Up-pipes
- Riffraff Diesel Stainless Gaskets
- Riffraff Diesel USA Collector Manifold
- OEM Ford Motor Company Install Hardware Kit

*Ceramic Coating Details -
The Turbo Black ceramic was formulated for exhaust temps up to 2000*F and will hold in at least 60% of the heat from radiating out under your hood. Not all black coatings will achieve that function. These coatings have been specifically formulated for use on military aircraft.

By retaining the heat energy your turbo will spool up faster and more efficiently. We double coat the outside of the housing to protect it from rusting and it results in a much longer attractive finish while retaining heat. The two main functions of the coating is appearance and longevity of your engine parts and gaining a more efficient running engine.


These kits are 100% Made In The USA, and not overseas like other, lesser quality kits. 

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  • 5
    Excellant product

    Posted by Gary on Mar 30th 2022

    Done the job to perfection

  • 5
    Up-pipe kit 99.5-03

    Posted by Ernie Magana on Mar 28th 2022

    The Riffraff up-pipes fit perfect! Increase in power due to old leaking Ford up-pipes. I highly recommend Riffraff for a superb product.

  • 5
    Bellowed stainless up pipe kit

    Posted by Kelly on Feb 5th 2022

    This was my second time doing the job. I went with Dorman the first time because these were out of stock. The set from Dorman was complete garbage. Wrong bends, too long, the bellows were too big and we’re right against the bolts, no room for a socket. The old set leaked from day one from too much tension on the system. The Riffraff kit fit flawlessly and with zero leaks. Was easy to install and is high quality TIG welded stainless. Have recommended to several friends already.

  • 5

    Posted by Eloy Baldonado on Feb 2nd 2022

    good quality and a little difficult to install but worth the effort Let's Go Brandon!

  • 5
    Bellowed up-pipe 7.3

    Posted by Wish I would have done this earlier. on Jan 19th 2022

    This is the end all for underhood exhaust leaks. The ribbed design allows for an exact fit and if you tighten the bolts even your golden. Installed this with a 4in. Exhaust and now my rig sounds like a Navy Jet ready to launch on a carrier.

  • 5

    Posted by Kerry C. on Jan 12th 2022

    Found these up pipes to be of very high quality. They will be the last ones you buy.
    Clay is exceptional.

  • 4
    Riffraff Diesel Bellowed Stainless Up-pipe Kit 99.5-03

    Posted by Jason on Jan 3rd 2022

    No problems with install on this product. It's a job to install them but I had no issues with clearance, interference, or anything related to the kit. Exhaust leak is definitely gone now. Time will tell on the rest, but they sure look good and fit perfectly.

  • 5
    USA Proud

    Posted by Jerry on Dec 20th 2021

    I am proud to purchase such an unapologetically USA made product. When others are trying to quietly sell more and more overseas cheap parts Riffraff stands out in the crowd supporting American trades and providing a product that is a great example of a quality part.

  • 5
    Pricy but.....

    Posted by Michael Myers on Nov 17th 2021

    Yes their expensive, however the quality and build is the best and not something you want to have to replace a couple years down the road by buying the cheaper ones.