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 flow
- 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 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. We suggest the RDP-FFL line kit in place of the stock fuel lines.
106 Reviews Hide Reviews Show Reviews
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RiffRaff Intake manifolds
These things look great. Solid construction and extremely easy to install. Only issue for me, is the only issue for everyone. That one stupid bolt!
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Better than OEM
These things are heavy duty and perfect fit. The only thing I had an issue with was one of the oring gaskets wouldn't stay seated in the plenum and had to use a little hairspray to keep it seated while I installed it, but have drove a few thousand miles since then with 0 issues at all. holding boost perfectly.
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Great, but
These plenums look great, perform perfectly, and are a great upgrade! Slight issues to keep in mind are the drivers rear feed line on the Irate RR interferes with the plenum and it must be ground down to clear. Only had to remove about an 1/8" and should not affect the function. Also, the CNC fab HPOP lines have a fitting that must be installed and clocked correctly before installing the plenum. Neither are Clay's fault, so I won't deduct a star for them. Just make sure you do both of those things before torquing the Allen head bolts.
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Strong yet elegant plenums, far exceeded my predictions!
You well not be disappointed, top notch quality, great shipping, and USA ALL THE WAY!!
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work of art
The pictures don't do them enough justice. These are amazing works of art and engineering. Perfect fit, and I love the oring, it is so superior to the silicone on the factory ones.
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BILLET INTAKE, T500 HPOP
I just did a complete upgrade for my early 99 7.3. These billet intakes and the T500 were just what I needed to make sure that my 7.3 will continue to maintain its well deserved title, "the work horse."
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Billet plenums
Great product, fitment and quality is excellent. Read the instructions found online before installing.
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Riff Raff Billet Manifolds
Bought a set of these for my truck and they are awesome. Quality is top shelf. The instructions tell you how to go about the install. I am upgrading my truck with what I consider will get me through another 17 years of service. Clay at Riff Raff is a great help to us Aussies.
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Billet plenums
Great quality and fit. Works great I hade a leak at the factory plenums caused by my compounds but these have held up great to what gets pushed too them
