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Made my own True Cold Air Intake

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Old 03-30-13, 04:11 PM   #16
Joshohoho
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My Second comment on this thread. Sounds amazing. I just realizes that is pretty loud from inside. Could you do a video outside? a drive by and a stand still?
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Old 03-30-13, 04:16 PM   #17
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Quote:
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My Second comment on this thread. Sounds amazing. I just realizes that is pretty loud from inside. Could you do a video outside? a drive by and a stand still?
Sure I will do that when I get a chance. Its actually not as loud in the car as you would think, and its quieter inside the car than a cut airbox.
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Old 04-14-13, 11:30 PM   #18
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nice job dude.
ive had cai on my previous cars running down the fender, i would remove the fender liner for max cool air, never had an issue in the rain. i think the filter would have to be submerged to suck in enough water to damage the engine.
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Old 04-17-13, 07:48 AM   #19
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Yes thats exactly right. But I made it like that just in case lol. Been real busy lately still going to get dyno numbers and a video of it from outside the car.
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Old 04-18-13, 12:03 PM   #20
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This should be a sticky!!!
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Old 04-19-13, 06:52 PM   #21
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PPE is working on a similarly designed CAI as well. sounds awesome tho
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Old 04-20-13, 12:58 AM   #22
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sounds like Vtec kicking in lol but I do agree with mikelucci on that one, it would be a hassle switching out intake stuff for rain, needs to be made for once you put it in, its there no headache!
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Old 04-26-13, 06:03 PM   #23
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Like I said before I havent had any problems in the rain. I only did this for those that might be uncomfortable with a true cold air in the rain.
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Old 04-29-13, 12:52 AM   #24
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Doesn't look bad at all. Very clean design man
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Old 04-29-13, 06:18 AM   #25
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Nice work!
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Old 05-02-13, 03:50 PM   #26
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dynoooooooooooooooooooooo
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Old 10-30-13, 11:09 PM   #27
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Originally Posted by darkstar38 View Post
Hey guys new to CL, but not new to modding/racing cars, I have been fabricating and racing my whole life and right now have a mustang thats about to hit the dyno and will put down about 800-1000 hp depending on boost level. I just recently upgraded my daily driver to an 06 IS350 with only 54K miles and absolutely love it. After some research I found out there wasnt much to offer in the cold air intake area, so I made my own.


Some details about the intake, 3" polished mandrel bent aluminum tubing with beaded ends, Machined and welded on MAF mount, valve cover breather, 3" green(also avail in blue) silicone couplings, hose clamps, K&n air filter. The air filter is located in the passenger side fender and gets cold air flow from the brake vent duct. Testing revealed a MINIMUM of 13* COOLER air charge temps vs the stock air intake. Testing done at 64* ambient air temp, while driving at 50mph the stock air intake temps were at 77*, at full throttle 84*. With the UP true cold air intake the temps were 64* while driving at 50 mph and 64* at full throttle. As the ambient air temp increases the UP cold air outperforms the stock intake even more.

I havent had a chance to dyno the UP intake vs stock but will soon. I can tell you the car feels much faster than it did with a cut airbox with k&n filter. It now spins the tires into 2nd gear.

"What if it rains?" you say, I designed the upper intake to fit the stock airbox for just that reason. I keep my stock airbox lid and filter in the trunk and also a screwdriver, If it rains you can quickly take loose the cold air and hook up the upper pipe to the stock airbox and drive off within 5 mins.

Enough about details heres some pics and a video of how it sounds.









Ultimate Performance CAI for Lexus IS250/350 - YouTube
sounds badass ! kudos
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Old 11-04-13, 07:20 PM   #28
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Sounds mean. How much did it cost you?
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Old 11-04-13, 07:22 PM   #29
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looks pretty nice! better than most of the DIY CAI intakes I've seen...
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Old 11-12-13, 07:15 AM   #30
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Thanks guys, I still havent had a chance to get track times or dyno numbers, but it definitely made the car faster. Several v8 cars that have lost to me never saw it coming lol.
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