RDP Plenum Reinforcing Inserts™ 94 - Early 99

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RDP Plenum Reinforcing Inserts™ - Ford 7.3L 94-Early 99

These billet 7075 Aluminum plenum inserts are a Riffraff Diesel original design and are patent pending. They are made to allow you to clamp down as hard as needed with T-bolt clamps so that you don't have any boost leaks. Fix your bent and crushed stock plenums with our Inserts as well. This is a budget friendly option to buying full billet plenums. Easy install, no special tools needed.

These were designed so as to add the least restriction possible while providing more than adequate structure for clamping. The Plenum Inserts have been machined to within .164" of the OEM diameter so there will not be any measurable affect on EGT's or cfm flow.

These are sold in a pair.

Riffraff Diesel Performance is committed to 100% Made in the USA on this product. All materials are from USA resources. Every machining step is performed in the USA. Every component is assembled in the USA.


1994-Early 1999 E, F Series, and Excursion Powerstrokes
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  • 5
    Good quality

    Posted by Stephen on Nov 29th 2018

    Good quality help you be able to tighten down the clamps so your turbo y boots don’t slip off easy to put in just put them in a little and tap them in with a rubber mallet I would recommend hem to any one with an obs 7.3