Posted this in another thread, but creating a new one so it's easier to see.
I was inspired by another member who had made a post about the K&N intake tube. Similar to the Tundra TRD intake, it is just a straight tube from airbox to throttle body. No sound reducing resonators that we have stock. Only downside is it's $250. Not terribly expensive but I didn't feel like paying that much.
Enter in the stock Tundra/Sequoia intake tubes. Compared to our 200 series one it just has one resonator instead of two and the one it has is a little smaller. These can be had relatively cheaply used. I found mine for $45 on ebay. This is a 100% bolt-on affair and provides a little more intake noise than stock. It's very subtle but under moderate to heavier acceleration you do get a nice little bit of grumble in that 2,000-4,000 rpm range. It sounds like a stock Tundra. No surprise there.
Now you can stop here and have a very incognito little intake mod. Or you can continue on to mimic the K&N or TRD intakes like I did. The goal is to create a straight tube/delete the resonator. Grab your cutting tool of choice and get to work. I used a dremel with a cutting disc and sanding barrel. It was messy but made very quick work. Instead of making the first cut right by the tube, I recommend cutting the resonator in half by the seam first. It was much easier to remove this way. You can then cut off the remainder much easier.
Now to seal it I recommend plastic welding. I did try to use some plastic epoxy for the nipples but for whatever reason this plastic did not seem to adhere well to it. Fortunately you have a ton of excess plastic that just so happens to be the right type to use for grafting in. I chose a couple pieces of relatively flat bits of the resonator and heated them to be pliable with a heat gun. Molded these to the round contour of the tube, then cut to fit the openings. Then just melt em in together. Once flat drill appropriately sized holes for the nipples and much more carefully weld those in as well. For strength and because access was easy I did melt both inside and outside of the nipples. The smaller one ended up getting sealed by accident but was easy to drill through and reopen.
All that's left is to install. For this you'll need to extend the larger of the two hoses coming off the intake. I don't know what size I bought (just handed the parts guy the nipple and said give me 2 feet of whatever fits this), but about 21" of heater hose did the trick. The smaller hose has plenty of length to fit. In fact, it was almost too long, so I actually shortened it by about 2 inches.
I was inspired by another member who had made a post about the K&N intake tube. Similar to the Tundra TRD intake, it is just a straight tube from airbox to throttle body. No sound reducing resonators that we have stock. Only downside is it's $250. Not terribly expensive but I didn't feel like paying that much.
Enter in the stock Tundra/Sequoia intake tubes. Compared to our 200 series one it just has one resonator instead of two and the one it has is a little smaller. These can be had relatively cheaply used. I found mine for $45 on ebay. This is a 100% bolt-on affair and provides a little more intake noise than stock. It's very subtle but under moderate to heavier acceleration you do get a nice little bit of grumble in that 2,000-4,000 rpm range. It sounds like a stock Tundra. No surprise there.
Now you can stop here and have a very incognito little intake mod. Or you can continue on to mimic the K&N or TRD intakes like I did. The goal is to create a straight tube/delete the resonator. Grab your cutting tool of choice and get to work. I used a dremel with a cutting disc and sanding barrel. It was messy but made very quick work. Instead of making the first cut right by the tube, I recommend cutting the resonator in half by the seam first. It was much easier to remove this way. You can then cut off the remainder much easier.
Now to seal it I recommend plastic welding. I did try to use some plastic epoxy for the nipples but for whatever reason this plastic did not seem to adhere well to it. Fortunately you have a ton of excess plastic that just so happens to be the right type to use for grafting in. I chose a couple pieces of relatively flat bits of the resonator and heated them to be pliable with a heat gun. Molded these to the round contour of the tube, then cut to fit the openings. Then just melt em in together. Once flat drill appropriately sized holes for the nipples and much more carefully weld those in as well. For strength and because access was easy I did melt both inside and outside of the nipples. The smaller one ended up getting sealed by accident but was easy to drill through and reopen.
All that's left is to install. For this you'll need to extend the larger of the two hoses coming off the intake. I don't know what size I bought (just handed the parts guy the nipple and said give me 2 feet of whatever fits this), but about 21" of heater hose did the trick. The smaller hose has plenty of length to fit. In fact, it was almost too long, so I actually shortened it by about 2 inches.
Last edited:
