RDP Plenum Reinforcing Inserts™ - Ford 7.3L 99.5-03
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.
178 Reviews Hide Reviews Show Reviews
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Intake plenum inserts
Very nice built well. The lip keeps you from knocking them in too far. I sprayed mine with carb cleaner knocked them in with a rubber mallet and that made me trust tightening the new boost clamps onto the stock flimsy intake plenums
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RDP PLENUM REINFORCING INCERTS
Amazing quality.....
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Plenum Inserts
Great product!
My EOM plenum openings where tapering shut a bit, so I had to tap these in. Knew they needed to be installed with the new T-bolt style boot clamps. If you're getting in this far you'd be silly not to install a set of these inserts. -
plenum
fit perfect
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Plenum reinforce sleeves
Inexspensive quality upgrade. Every purchase i have made has been a quality product and resonably priced. I will continue to use their products.
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Plenum inserts
These worked out great, my plenums were a little bent up and I didn't want to buy new ones. I just knocked them in problem solved.
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Plenum inserts
My second pair installed easily
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Inserts
Precision fit and finish where it is really needed. Excellent
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RDP PLENUM REINFORCING INSERTS™ 99.5-03
Great to prevent deforming the weak factory plenums!