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Old 04-23-2010, 09:07 PM   #1
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Toyota Tacoma Cold Air Intake

I have an 08 Toyota Tacoma TRD Sport prerunner double cab. I am thinking about getting cold air intake on mi truck. Is there one i can get that dosent make a lot of noise when you acclerate? what does it look like? Where do u get it? I am new to this forum.
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Old 04-23-2010, 09:13 PM   #2
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Welcome to TW! From the sounds of what you are looking for, stick with the stock intake. Most aftermarket intakes only make noise, and give no gain. Only a few give any real gains, but they are loud.
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Old 04-23-2010, 09:14 PM   #3
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You are lookibng for an impossible product for our trucks.
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Old 04-23-2010, 10:18 PM   #4
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what ur looking for is called magic it comes in the form of pixie dust. If you find it u hold the right to rub it in everyones face...

but seriously not alot u can do in this case that wont add sound, best u can do is go drop in a high flow filter in the stock set up. the gains r up to debate.
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Old 04-24-2010, 01:23 AM   #5
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Quote:
Originally Posted by chris4x4 View Post
Welcome to TW! From the sounds of what you are looking for, stick with the stock intake. Most aftermarket intakes only make noise, and give no gain. Only a few give any real gains, but they are loud.
We're gonna have to duke this one out one of these days chris.

I'd love to have a good in-depth debate/discussion on this. I think it would open a lot of insight on both ends and give us an opportunity to see things inside out.

Personally I'm all for an aftermarket intake, as it will provide great gains in the right scenario. While not all intakes are created equal, they can all be used with other mods to show positive gains.

Now saying an aftermarket intake is necessary in all situations is not entirely true. Depending on what your looking for, a drop in filter could very well be a better decision then an aftermarket intake.
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Old 04-24-2010, 07:07 AM   #6
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Quote:
Originally Posted by XrunnIT View Post
We're gonna have to duke this one out one of these days chris.

I'd love to have a good in-depth debate/discussion on this. I think it would open a lot of insight on both ends and give us an opportunity to see things inside out.

Personally I'm all for an aftermarket intake, as it will provide great gains in the right scenario. While not all intakes are created equal, they can all be used with other mods to show positive gains.

Now saying an aftermarket intake is necessary in all situations is not entirely true. Depending on what your looking for, a drop in filter could very well be a better decision then an aftermarket intake.
LOL! Yeah, I know....THing is, I've seen them on a dyno, and they never live up to the manufacture claims. And when used in conjunction with other mods, (SC, or Turbo), they may give a little bit of gain, but not much.
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Old 04-24-2010, 07:39 AM   #7
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Quote:
Originally Posted by chris4x4 View Post
LOL! Yeah, I know....THing is, I've seen them on a dyno, and they never live up to the manufacture claims. And when used in conjunction with other mods, (SC, or Turbo), they may give a little bit of gain, but not much.
20-30rwhp on a TRD s/c is just a tad more the a 'little' gain.

If you could, shoot me a PM with the CAI and dynos that you've tested. I'd like to see what you've seen.

Because our ECUs are a learning computer, it will take some time between mods to actually see the gains. Changing an intake and running back to back runs probably won't net you much of any gains on our trucks, simply because the ECU hasn't relearned its map and adjusted.

Plus when it comes to volumetric efficiency, the easier it is to come in and the easier it is to go out, the more power you'll make. Our trucks don't really benefit from the 'cold air' aspect but more of the less restrictive intake tubing.
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Old 04-24-2010, 07:57 AM   #8
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Quote:
Originally Posted by XrunnIT View Post
20-30rwhp on a TRD s/c is just a tad more the a 'little' gain.

If you could, shoot me a PM with the CAI and dynos that you've tested. I'd like to see what you've seen.

Because our ECUs are a learning computer, it will take some time between mods to actually see the gains. Changing an intake and running back to back runs probably won't net you much of any gains on our trucks, simply because the ECU hasn't relearned its map and adjusted.

Plus when it comes to volumetric efficiency, the easier it is to come in and the easier it is to go out, the more power you'll make. Our trucks don't really benefit from the 'cold air' aspect but more of the less restrictive intake tubing.

Thing is, You can throw on a intake tube thats 8" in diamete, it wont matter, as the throttle body still only allows a certain amount of flow thru it. Its the deciding factor. Not how large a tube the intake has, or what filter it has. My Wife threw out all of my dyno tests, notes, etc., a couple years ago. I cant produce "proof". On the flip side, why dont you show Me? Show me a gain of 20+ Hp (thats not a manufacture "test") from an intake? There is a guy on here who dynoed his truck with and with NO filter, and with no filter, he gained 1.* hp. Which is within the margin of error of the dyno. Yes, the ECU can adjust to a degree, but a gain of 0 with a mod, is not going to turn into a gain of 20 hp in a few weeks. On the 1Gr engine, its volumetric efficiency is given by the intake runners. Not the intake before the TB. To get any real gain from the intake side, and staying naturally inducted, you need to change the intake from the filter, all the way back to the runners. Including the TB. THEN you may have a 20 hp gain. "Maybe". There are quite a few guys, and maybe gals, in Japan who get paid big bucks to make these engines as economical, and efficient as they can. If a $10 aluminum tube made a huge difference, it would come from the factory. If a coffee can sized filter made a big difference, it too, would be OEM.
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Old 04-24-2010, 07:57 AM   #9
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My experience

I installed a TRD CAI on my 09 last week, and I am very satisfied with the results. Definate imorovement on acceleration without hesitation, and the sound is perfect. Not loud but just the right amount of low rumble. I love it and can't wait to install my TRD cat-back next. Hope this helps.
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Old 04-24-2010, 08:32 AM   #10
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Quote:
Originally Posted by chris4x4 View Post
Thing is, You can throw on a intake tube thats 8" in diamete, it wont matter, as the throttle body still only allows a certain amount of flow thru it. Its the deciding factor. Not how large a tube the intake has, or what filter it has. My Wife threw out all of my dyno tests, notes, etc., a couple years ago. I cant produce "proof". On the flip side, why dont you show Me? Show me a gain of 20+ Hp (thats not a manufacture "test") from an intake? There is a guy on here who dynoed his truck with and with NO filter, and with no filter, he gained 1.* hp. Which is within the margin of error of the dyno. Yes, the ECU can adjust to a degree, but a gain of 0 with a mod, is not going to turn into a gain of 20 hp in a few weeks. On the 1Gr engine, its volumetric efficiency is given by the intake runners. Not the intake before the TB. To get any real gain from the intake side, and staying naturally inducted, you need to change the intake from the filter, all the way back to the runners. Including the TB. THEN you may have a 20 hp gain. "Maybe". There are quite a few guys, and maybe gals, in Japan who get paid big bucks to make these engines as economical, and efficient as they can. If a $10 aluminum tube made a huge difference, it would come from the factory. If a coffee can sized filter made a big difference, it too, would be OEM.
but don't you think though that most people want quiet vehicles and if 15hp (doesn't trd advertise the cai at something like +15 hp?) comes at the expense of much more noise then they wouldn't want it on stock? how can it be advertised at +15 hp or + anything if it doesn't do it?
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Old 04-24-2010, 08:38 AM   #11
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Quote:
Originally Posted by knickerbocker View Post
but don't you think though that most people want quiet vehicles and if 15hp (doesn't trd advertise the cai at something like +15 hp?) comes at the expense of much more noise then they wouldn't want it on stock? how can it be advertised at +15 hp or + anything if it doesn't do it?

Fine print on all of these HP claims "up to", and sometimes "On test vehicle". many manufactures convert to "Crank HP", or tune the ECU for the intake. I have yet to see any dyno showing near claimed HP gains for any intake, other than the URD. In some cases (K&N intake on the 3.4), there have been dyno runs showing a loss.
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Old 04-24-2010, 08:40 AM   #12
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well crap. that's retarded. well, guess i just saved 350 bucks.
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Old 04-24-2010, 11:53 AM   #13
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Quote:
Originally Posted by chris4x4 View Post
Thing is, You can throw on a intake tube thats 8" in diamete, it wont matter, as the throttle body still only allows a certain amount of flow thru it. Its the deciding factor. Not how large a tube the intake has, or what filter it has. My Wife threw out all of my dyno tests, notes, etc., a couple years ago. I cant produce "proof". On the flip side, why dont you show Me? Show me a gain of 20+ Hp (thats not a manufacture "test") from an intake? There is a guy on here who dynoed his truck with and with NO filter, and with no filter, he gained 1.* hp. Which is within the margin of error of the dyno. Yes, the ECU can adjust to a degree, but a gain of 0 with a mod, is not going to turn into a gain of 20 hp in a few weeks. On the 1Gr engine, its volumetric efficiency is given by the intake runners. Not the intake before the TB. To get any real gain from the intake side, and staying naturally inducted, you need to change the intake from the filter, all the way back to the runners. Including the TB. THEN you may have a 20 hp gain. "Maybe". There are quite a few guys, and maybe gals, in Japan who get paid big bucks to make these engines as economical, and efficient as they can. If a $10 aluminum tube made a huge difference, it would come from the factory. If a coffee can sized filter made a big difference, it too, would be OEM.
The high hp gain I saw was going from the stock intake to the TRD intake (IIRC) on a TRD supercharged truck. I'm looking for the dyno sheet now, and will post it once I find it again.

Here is a dyno done by a 3rd Party, comparing two aftermarket intakes (TRD2, and the aFe Si Stage 2) to the stock intake.

+12rwhp/+13ft-lbs, which is real close to what is advertised.



The intake runners play a huge roll in the VE, and the TB will determine the volume of air coming in. But the motor is still a big air pump. And because the intake stroke is based on vacuum any restriction through the intake system will have a negative effect.

In regards to the engineering, performance is sacrificed for ride quality (quiet intake) and emissions. So because the system is designed to meet those requirements first there is still untapped power to gain if you're willing to sacrifice the features.
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Old 04-24-2010, 12:50 PM   #14
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ok guys thanks for all your posts. Can i just change the black plastic tube to a metal one and upgrade to a k&n stock filter? what will that do?
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Old 04-24-2010, 01:58 PM   #15
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Quote:
Originally Posted by donovan6241 View Post
ok guys thanks for all your posts. Can i just change the black plastic tube to a metal one and upgrade to a k&n stock filter? what will that do?
I wouldn't recommend that.

MAF accuracy is another big part of aftermarket intakes. The reason the K&N for the 3.4L was so bad was because of the bad MAF accuracy. If your on a budget a drop in filter is your best bet.
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Old 04-24-2010, 03:54 PM   #16
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All i can say is, i went from a k & n drop in to an AFe cai and big difference! It made a big difference and not just in sound. Sounds good imo and now i have the URD maf. sensor calibrator and it's even more WOW! I don't have a dyno sheet but i could definately feel the difference. So i would say i had to have gained a few ponies?
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Old 04-28-2010, 02:15 PM   #17
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Quote:
Originally Posted by XrunnIT View Post
Here is a dyno done by a 3rd Party, comparing two aftermarket intakes (TRD2, and the aFe Si Stage 2) to the stock intake.

+12rwhp/+13ft-lbs, which is real close to what is advertised.


is this from an otherwise stock truck or one with other mods? also, is "TRD2" the "new" TRD intake? i'm assuming this is second gen truck? it makes sense that cai would make a bigger difference with s/c than with n/a because that's the whole point.
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Old 04-28-2010, 02:24 PM   #18
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Cold air and no noise? Stock is perfect.
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Old 02-19-2014, 01:32 AM   #19
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Whats wrong with a little noise
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