Plenum CAC Boot Kit for Ford 7.3L 99.5-03 F-Series & E-Series
This boot kit will replace both of your Late 99-03 Plenum boots while running stock intake components. We also offer clamp kits if you are still running your stock Ford clamps.
59 Reviews Hide Reviews Show Reviews
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4 Nice quality
Posted by Maximilian Pelletier on Jul 3rd 2025
I would have given it five stars if they were a quarter inch longer. Couldn't get the AFE Spyder to fit along with riff raff plenums without moving the hose off the plenums of a little bit where the clapms were just catching the groove.
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5 Plenum CAC Boot Kit - 99.5-03
Posted by N P on Mar 19th 2025
These boots are so much thicker than the original ones. The Ford ones have lasted me 21 ys and only now have to change them due to oil leaking. I would get new clamps if doing it again.
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5 Plenum Boots
Posted by James on Feb 4th 2025
Look and fit great!
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5 Riffraff Quality
Posted by Cyrus Mohit on Oct 3rd 2023
Riffraff quality! Made to last.
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5 Cac boots
Posted by Noah jackson on May 15th 2023
Very high quality and best price they fit perfect
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5 RIFFRAFF DIESEL PLENUM CAC BOOT KIT - 99.5-03
Posted by Chris Michaud on Jun 14th 2022
Fit the Hole. Came Fast. Thankyou
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5 Plenum CAC Boot Kit - 99.5-03
Posted by Scott Rodenhiser on Jan 18th 2022
Much better quality than the OEM ones. I have read of people having problems installing these, I did not have any issues. Left the new t-bolt clamps loose, lined up the spider and turbo outlet, tightened the v clamp on the spider them tightened the boots. It was very easy and looks solid.
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5 Plenum boots
Posted by Adam P on Dec 16th 2021
These are real good quality boots, a bit stiff to work with but they are good long lasting quality.
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5 plenum-cac-boot
Posted by Wanderin Beast on Nov 15th 2021
Worked great, hoping for years of service for my E350
