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Thumbnail Filmstrip of 7.3 Powerstroke OBS | E99 FFD HD Intake Plenums Images
Features:
Heavy duty design
2.25" openings to work with factory set up
Can withstand high boost from modified engines
Thick billet aluminum for years of worry free service
Fixes leaking factory plenums
Features:
Heavy duty design
2.25" openings to work with factory set up
Can withstand high boost from modified engines
Thick billet aluminum for years of worry free service
Fixes leaking factory plenums
Q
Tom • 06/21/2026, 10:50:27 PM
If i get these for my e99 7.3l will they come with new boots, if not will the factory ones stretch over? Also does it come with a new gasket?
A
06/25/2026, 1:12:02 PM
New boots are not included and these do not use a gasket. Ford Gray is used to seal. Gray RTV Silicone Sealant Ford TA-31
SKU: fmcTA-31
Q
Josh D • 07/14/2026, 11:13:05 PM
What Length Bolts do you recommend using with these OBS intake plenums
A
07/15/2026, 3:57:58 PM
Original bolts.
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4/5 Stars out of 3 Reviews
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William Tustin (NJ) | May 6th, 2021
The good: they are the right shape/size/bolt holes line up. The bad: On my 94.5 they caused a bunch of issues. First, on the passenger side rear the notch isn't big enough for the 45 deg fuel fitting going into cylinder head. Had to dremel that bigger. Second, passenger side front contacted the engine lifting bracket so that had to be removed. Third, due to the fact that they're thicker the driver side fuel return from cylinder head can't thread on to cylinder head fitting. Need to find a slightly taller fitting. A lot of these issues could be specific to my oddball 94.5 truck, so your results may vary.
Proposition 65 Warning Information -
P65Warnings.ca.gov
Fits: For the Strictly Diesel Dipstick Adapter
California Restricted
Fits: Universal - Many Applications