TRD airbox from the Long Beach celeb race cars

[vtmike]

Originally Posted by Nezz

I still don't get how everyone talks about "real engine sound" as a reason to remove the 'sound generator'. It's not like it's a lie, that's intake noise, right there. Feel free to say you prefer exhaust noise or whatever, but that's intake noise...

It's intake noise with certain frequencies artificially silenced by the resonators and others artificially magnified by being directed into the cabin. If you want to hear intake noise watch a video with a car with a perrin cai.

Sent from my Nexus 7 using Tapatalk HD

[roddy]

I don't mind the engine noise, but I don't mind losing it or a couple of pounds off the front end either.

[switchlanez]

Originally Posted by tripjammer

Anybody receive one of these yet?

Originally Posted by Hanakuso

Any differences like weight, sound, throttle response or Butt dyno? Did it come with a plug for the in car sound tube?

Originally Posted by Turdinator

Can't wait to hear your impressions guys.

I've had mine installed since Wendesday and been driving it these past few days.



Some reasons I purchased:

1. OEM
2. Straight tube has less impedance than a 90 degree elbow (which is what most other aftermarket CAIs have).
3. Air filter cuts diagonally across airbox to maximize its size in the given space for greater intake air volume.
4. Easier to change/clean the filter compared to most aftermarket CAIs.
5. Cold air from bumper enters stock Venturi tube snorkel ensuring constant pressure for predictable MAFS readings (rather than sporadic w/o snorkel).
6. Accordion tube allows for engine to rock under hard cornering without dislodging couplings on the airbox which is anchored to the chassis. Silicone couplings on aftermarket intakes with rigid tubes can gradually become undone.

Initial impressions/comparos:

1. Response: When I first installed my Takeda (with ECU reset by disconnecting battery for 15+ minutes), it felt/sounded like stock below 5.5k rpm and took several hundred miles for the ECU to adjust and improve throughout the rev range its response and loudness. When I sold my Takeda, I reverted to stock (reset ECU again) and response felt lethargic and quiet even with my red TRD sound changer. Installed my TRD intake (reset ECU) and it was instantly louder than stock but not as loud as Takeda. Also, it pulled as hard if not harder than my Takeda was pulling (AFTER the ECU had adjusted to the Takeda), only the TRD was pulling this hard from a *fresh* ECU reset. I can only imagine how it'll feel in a few hundred miles after the ECU has adjusted or if it needs to at all.
2. Sound: Quieter than my Takeda. And I like that because the Takeda would boom and almost sound louder than it should for how slow I'd be moving. But still louder than stock with my sound changer. I think it's a healthy induction sound; not wheezing like stock and not a ricey booming like some aftermarket intakes. Those who want extravagantly loud may want to look elsewhere. Those who want to better hear a healthy sounding engine, this does it, rightfully fitting the character of the car. But again, it hasn't been several hundred miles so the sound may still change.

Not too concerned about dyno results but I'd be surprised if it performed worse than stock. I also haven't been redlining it, and even if I did, my impressions wouldn't mean much because I haven't spent enough time through redline with my other intakes to form a familiar baseline for any meaningful comparisons. I expect it to be better than Takeda and rival or exceed Perrin given the above theory and my initial impressions.

[Killerbee]

Originally Posted by switchlanez

I've had mine installed since Wendesday and been driving it these past few days.



Some reasons I purchased:

1. OEM
2. Straight tube has less impedance than a 90 degree elbow (which is what most other aftermarket CAIs have).
3. Air filter cuts diagonally across airbox to maximize its size in the given space for greater intake air volume.
4. Easier to change/clean the filter compared to most aftermarket CAIs.
5. Cold air from bumper enters stock Venturi tube snorkel ensuring constant pressure for predictable MAFS readings (rather than sporadic w/o snorkel).
6. Accordion tube allows for engine to rock under hard cornering without dislodging couplings on the airbox which is anchored to the chassis. Silicone couplings on aftermarket intakes with rigid tubes can gradually become undone.

Initial impressions/comparos:

1. Response: When I first installed my Takeda (with ECU reset by disconnecting battery for 15+ minutes), it felt/sounded like stock below 5.5k rpm and took several hundred miles for the ECU to adjust and improve throughout the rev range its response and loudness. When I sold my Takeda, I reverted to stock (reset ECU again) and response felt lethargic and quiet even with my red TRD sound changer. Installed my TRD intake (reset ECU) and it was instantly louder than stock but not as loud as Takeda. Also, it pulled as hard if not harder than my Takeda was pulling (AFTER the ECU had adjusted to the Takeda), only the TRD was pulling this hard from a *fresh* ECU reset. I can only imagine how it'll feel in a few hundred miles after the ECU has adjusted or if it needs to at all.
2. Sound: Quieter than my Takeda. And I like that because the Takeda would boom and almost sound louder than it should for how slow I'd be moving. But still louder than stock with my sound changer. I think it's a healthy induction sound; not wheezing like stock and not a ricey booming like some aftermarket intakes. Those who want extravagantly loud may want to look elsewhere. Those who want to better hear a healthy sounding engine, this does it, rightfully fitting the character of the car. But again, it hasn't been several hundred miles so the sound may still change.

Not too concerned about dyno results but I'd be surprised if it performed worse than stock. I also haven't been redlining it, and even if I did, my impressions wouldn't mean much because I haven't spent enough time through redline with my other intakes to form a familiar baseline for any meaningful comparisons. I expect it to be better than Takeda and rival or exceed Perrin given the above theory and my initial impressions.
__________________

"This isn’t about specifications or numbers but a cultural phenomenon."
-Moto-P

Thanks for the review, got me interessted in the TRD intake
Does it "delete" the sound tube exit? I see in your picture that you have removed it, is that by choice or because the intake doesnt offer to connect it anymore?

[switchlanez]

Originally Posted by Killerbee

Thanks for the review, got me interessted in the TRD intake
Does it "delete" the sound tube exit? I see in your picture that you have removed it, is that by choice or because the intake doesnt offer to connect it anymore?

Yes, sound tube is deleted and there is no option to connect it anymore.

[Mars2]

what is the size of the filter?

[Red2Liter]

Originally Posted by JMPoole

Got mine Wednesday and installed it this afternoon but haven't had time to log anything. Installation took about 20 minutes.

Did the large volume of the airbox produce a resonance? I had an early BMW with twin Solexes that produced a loud moan when I put my foot into it.

Also, no problems with the stock firmware in the ECU? Toyota doesn't require a reflash or anything do they?

I don't mind legitimate intake noises, I just have a problem with sound tubes that artificially produce noise and cover up the actual engine sounds

[acro]

Love the looks of it but still waiting on someone to report what a tune would do with this intake

[JMPoole]

No extra noise and I can say that I like not having the sound generator hooked up. It feels as though the torque dip is a little smoother but looking at the datalogs no appreciable gain in air volume. That being said, has anyone really done a datalog with various intakes to see if they flow more air? One thing I didn't think about was whether a dyno is going to tell the true story on any of the intakes as cold air intakes are largely dependent on the vehicle being in motion and pressurized air being forced to the inlet or filter snorkel. Sooooo, I don't have anything appreciable yet. I am however going to enjoy some nice weather and drive my car around. BTW, I have to say the two mods that absolutely transformed the car (and caused me to sell my turbo kit) were Visconti's E85 tune and the Cusco Final Drive that I built for the car (which my shop will be offering a core service for those that have considered this upgrade). Sorry for the shameless plug but I feel strongly about the diff. By the time you add up a full exhaust with headers you will have almost exceeded the price of both of those mods and probably have little to show for it. My 2 cents.

[Killerbee]

Originally Posted by switchlanez

Yes, sound tube is deleted and there is no option to connect it anymore.
__________________

"This isn’t about specifications or numbers but a cultural phenomenon."
-Moto-P

do you miss the soundtube or does the louder TRD intake sound compensate you for it?

[switchlanez]

Originally Posted by Killerbee

do you miss the soundtube or does the louder TRD intake sound compensate you for it?

I don't miss the sound tube at all. The idea of removing a few pounds of excess piping makes it easier to dimiss. The intake sound does compensate for it. It makes a snarling sound similar to the red TRD sound changer I had on my sound generator, just a bit more muffled/less direct. Oh yeah, that's another thing. Seems like it has a slight raspy growl whereas my Takeda was a [louder] continuous boom.

[efactor84]

videos?

[tripjammer]

Originally Posted by efactor84

videos?

Yeah anybody got a youtube video on how this sounds while driving? I think i am going to order one of these. What is the going price for these?

[Cadenz]

So the Greddy SP Elite does not overwhelm the sound of the TRD intake? Actually did the SP Elite overwhelm the stock sound tube in general? I tried on a Works AB-M and I couldn't hear the engine noise, below 4k rpm, coming through the sound tube anymore.

Originally Posted by switchlanez

I don't miss the sound tube at all. The idea of removing a few pounds of excess piping makes it easier to dimiss. The intake sound does compensate for it. It makes a snarling sound similar to the red TRD sound changer I had on my sound generator, just a bit more muffled/less direct. Oh yeah, that's another thing. Seems like it has a slight raspy growl whereas my Takeda was a [louder] continuous boom.
__________________

"This isn’t about specifications or numbers but a cultural phenomenon."
-Moto-P