Thought I had a few pinhole leaks in my old CACs, threw these in. Noticeably better, no more high pitch squealing. Not as much of a "turbo" sound, but that means its getting all the air it needs. It used to do a big like suction sound when Id hammer it then let off, now it doesnt. Kind of miss that sound but overall its got better performance. Oh ya, only installed 2 of the 6. . . #RIFFRAFF

Also. . . this is the only product I have purchased from Clay that I didnt wait on the email reminder to review.

Very sturdy in the way they're made yet pliable enough to install without too much force to get them into place. Very nice product.

Very glad I finally spent the time to get into the truck and install these on my e99. Took about 4 hours and a couple ugly words but at the end of the day everything fit up, i had my boost pressure back, and the truck is very happy.

What a bitch to get the bottom two boots installed with the spyder, but they are on now. I recommend the RDP Plenum Reinforcing Inserts and the new clamps for them, ford uses just regular hose clamps, the new clamps, you get to tighten them so they wont leak or come off using the reinforcing inserts. Now I struggled mostly with the clamps (my stock clamps on the new boots, RDP boots are thicker). What made the clamps easy was to take the nut and spring off, position the clamp where you want it, install nut alone, run it up, then take the nut back off the clamp and install the spring and nut again. That made it so easy I just took all the rest of the clamps apart and positioned them and installed the nuts again........Take the battery and air cleaner box off (easy) you have tons or room on the driver side. Get your wife to help, mine did all the cleaning of the inter cooler pipes. Lots of sludge from leaking old boots. It was worth doing myself, and the boots are way better than the ford boots I took off my 2002 7.3. It is harder to put it all back together but its very doable. Ohhh plan on doing the work laying, sitting, and kneeling in the engine compartment, I used an old pillow to lay on.

The boots fit tight and are maintaining a seal.

Had a lot of trouble getting aftermarket boots to stay on but these boots seem to do the trick. I scrubbed the manifold and intercooler tubes with soap and water and used a spray on contact glue and they have been good so far pulling my fifth wheel on maximum boost (over 35lbs)! Buy Riff Raff Clamps and forget the spring type clamps that limit clamping force.

My 7.3 was suffering from higher than normal EGT's and what seemed like low boost. I would peak at about 20-21 when I punched it. Changed the boots and now getting 25psi no problem and lowered egts by about 200*. Great product. A couple pieces are a bit longer than stock and can make it tough to line up, but doable. the IC boots were a little loose on the piping side - not sure, but they seal fine

Besides drastically improving the look under my hood, these boots are a high quality improvement to my air flow on my truck. A little hard to get on but well worth the time and money.

amazing quality boots. snug fit. great look! love that they are made in the USA. would highly recommend.