Riffraff Diesel Billet Intake Manifold Plenum Set for Ford 7.3L 1994-2003
Our Gen 3 billet aluminum plenums are 100% made in the USA from USA materials.
An engineered design that addresses several issues at once:
- Pair of 6061 Billet Aluminum Plenum - No more sheet metal to bend
- Made In the USA!
- Fits all popular 1994-2003 stock pedestal mount and T4 turbos
- Anodized for a long lasting finish
- Larger intake mouth to accommodate better flow than stock
- Fits under both stock and modified turbos 1994-2003
- Commonized to work with all 8 and 10 bolt cylinder heads
- Stainless Steel mounting hardware for seamless install
- Viton O-ring seal rather than RTV - Tested at over 150psi
- Works with both dual and single HPOP's
- Billet aluminum spacers for GPR and GPCM brackets
- Plenum mouth O.D. is machined to retain intake "Y" better for T4 style kits
If you are looking for a true billet solution at an economical price, then this is your product.
*Note: Factory 1994 - Early 1999 have 2" plenums, and Late 1999-2003 have 3" Plenums
*Note: Anodized Color on Aluminum can be discolored / damaged by chemical engine cleaners. Use only soap and water to clean.
*Fitment Note: The hardware included with the plenums is intended to secure the plenums and GPR/AIH bracket only; if the fuel line clamp and AIH ground wire will be re-used, customer will need to make provision for the reinstallation of those items. Due to variations in fuel systems, aftermarket HPOP, and turbos we can not guarantee fit with all options on the market. Some early OBS trucks stock fuel line adapters can interfere with the plenums. We suggest the RDP-FFL line kit in place of the stock fuel lines for the 1999-2003 models.


124 Reviews Hide Reviews Show Reviews
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beautiful, and seal very good
Had a leaking stock plenum, fixed the problem. Great product.
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Awesome Plenums
I bought these for my 7.3, and the fitment is great. One thing to take inconsideration though is the thickness compared to stock one. I am running a regulated return that feeds through the rear test ports of the heads, and because of the thickness difference I had to add a nipple to raise the AN fitting up a little. Not a big deal, and really like these plenums!
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New Design
I ordered these before I knew they were redesigned. They are very nicely machined, and the anodizing is very crisp. I have not had a chance to actually mount them up (motor is out being rebuilt), however visually they are beautiful. I also opted to ask Clay about custom color (orange) which came out awesome.
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Worked perfectly
Very sturdy design. The o-ring is handy because RTV is messy and can be a chore to redo.
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Incredible
Read the rest of these reviews, they are all saying the same thing. These things fit great, are machined really well, and no more RTV.
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Great product amazing fit
Stock intake was leaking didn't wanna mess with rtv mess fit like a glove all leaks are gone!!!
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bitchin product
Thanks to clay... this is what the 7.3 should have came with from the factory.nice clean look and fit.keep it up riffraff. ..
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Amazing Quality!!
You have to have these in your hand to really appreciate the time and engineering they have put into them. Comparing them to the stock, flimsy , restrictive plenums I can now tell why they are so much better and worth every penny. Was an easy install, and so glad they use an o-ring rather than RTV. Riffraff really is the best out there.
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Awesome product
I had a leaking stock plenum and rather than remove and reseal and worry about leaks coming back I put these on. They are very nice and I won't have to worry about leaks or crushed inlet tubes ever again. I did have one small issue one of the plenums had been dropped on a corner it looked like it was before they got anodized it wasn't a big deal and didn't even contact Riffraff I just took a small file to the head mating surface to make sure it sat flat. I would for sure buy these again.






