IS - 3rd Gen (2014-present) Discussion about the 2014+ model IS models

2021 IS350 Cold Air Intake

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Old Feb 21, 2022 | 04:29 AM
  #16  
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Originally Posted by IS350USB
Injen claims 19+ Hp, wouldn’t that make it better in performance over stock?
Lmao you won't even get close to 19hp gain. Especially when it starts to get hot
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Old Feb 21, 2022 | 08:31 AM
  #17  
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Originally Posted by Answer
You won't get that
Originally Posted by TreysGS460
Lmao you won't even get close to 19hp gain. Especially when it starts to get hot
Yeah I’m not surprised lol. Might just stick with stock and a TOMs filter or something.
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Old Feb 24, 2022 | 08:44 AM
  #18  
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No, there is likely no instant 19hp + gain. But there is much more to it than put in. get 19hp. Here is a thread back some time ago I remember about the Injen. There are also so so many different problems with the results linked and the topic here.

https://www.clublexus.com/forums/per...ir-intake.html

To get a real accurate result, there would need to be some free flow increase with exhaust also. One big factor would also be that the ECU would take 100 - 200 miles of re-learn, and that would also depend on how that 100 - 200 miles was driven for relearn. I spoken and was given some Data that they shared with me from 2 different shops that Tune Lexus ECU's and have lots of Dyno and Mapping results to see provide insight about the Stock ECU and tune.

There is also lots of info that backs up the Tuners explanations, that show some of the limits in CAI results are due the the Stock Tune and MAF seeing lots more Air and then limiting the TB opening percentage, and affecting the Fuel trims. Small airflow variations affect the Stock MAF sensor. There are some test that resulted in nice gains with Cone Air filter CIA's but took some ECU corrections and used a different Toyota MAF to trick the ECU and do it. So at the end of the day CIA for the Lexus Stock 3.5 dont really work, but they do actually work if you do other Modification. If you are going to make a blanket statement post here, please provide the link or test result that show something you have actually done or have to go along with it, as I would like to ask some more informational questions about your experience and documented results please. Otherwise a it dont work post, with you did nothing is just incorrect and useless. Thnaks.
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Old Feb 24, 2022 | 09:58 AM
  #19  
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@jgscott Great post, I think I agree there's no point to a CAI unless you are doing other mods to the car. Even with turbo cars this is true to an extent. I remember with my Mk7 GTI the common consensus was that there was no reason to upgrade the intake outside of sound, unless you are going with a more aggressive tune involving exhaust modifications (especially the down-pipe).

I feel like a lot of people equate sound to speed. If it works for you, then I say go ahead and get yourself an intake. But, it's not going to make the difference of you beating another stock IS 350 in a race.
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Old Feb 25, 2022 | 07:59 AM
  #20  
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Originally Posted by jgscott
Otherwise a it dont work post, with you did nothing is just incorrect and useless. Thnaks.
I'm new to the modification world as I generally like my vehicles stock. The only reason I mentioned what Injen was claiming is because of exactly that. They're making a claim of 19+hp. Personally I just wanted to start off with something small in the modification world to my vehicle and go from there. If it brought forward performance then that's a plus. No need to rage post. Talk about a rough community in here lol.
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Old Feb 25, 2022 | 08:02 AM
  #21  
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Originally Posted by arentz07
@jgscott Great post, I think I agree there's no point to a CAI unless you are doing other mods to the car. Even with turbo cars this is true to an extent. I remember with my Mk7 GTI the common consensus was that there was no reason to upgrade the intake outside of sound, unless you are going with a more aggressive tune involving exhaust modifications (especially the down-pipe).

I feel like a lot of people equate sound to speed. If it works for you, then I say go ahead and get yourself an intake. But, it's not going to make the difference of you beating another stock IS 350 in a race.
Again, just wanting to slowly make additions to my vehicle and that wasn't sound related. I would've gone with an actual exhaust in that case...
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Old Feb 25, 2022 | 08:14 AM
  #22  
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Originally Posted by IS350USB
Again, just wanting to slowly make additions to my vehicle and that wasn't sound related. I would've gone with an actual exhaust in that case...
Yeah I won't judge! TBH I would invest in an intake if I was planning to do other mods to the car as a way of "future proofing" it, as I have heard it described before. Plus, it does sound cool.
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Old Feb 25, 2022 | 03:42 PM
  #23  
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Originally Posted by IS350USB
I'm new to the modification world as I generally like my vehicles stock. The only reason I mentioned what Injen was claiming is because of exactly that. They're making a claim of 19+hp. Personally I just wanted to start off with something small in the modification world to my vehicle and go from there. If it brought forward performance then that's a plus. No need to rage post. Talk about a rough community in here lol.
You cut a line out of a whole detail informational post I shared, then you call it a "rage post"? lol! Sorry if your little feeling were hurt.
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Old Feb 25, 2022 | 06:38 PM
  #24  
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Originally Posted by jgscott
You cut a line out of a whole detail informational post I shared, then you call it a "rage post"? lol! Sorry if your little feeling were hurt.
It doesn’t matter what I cut out, anyone can scroll up to read your rant. I cut it out cause it was unnecessarily long. My inquire by no means was to specifically increase HP on my vehicle. Again, a simple mod was the inquire with a small benefit being a plus.

Your stating I’m laying out blanket statements as if I’m trying to sell these facts made by the brand to the forum. I’m not the one making these claims, the brand is. So why bash me for it lol.

And we get your point but it didn’t have to come off like a ****. What’s it to you what people do with their vehicles. Mind your own and **** off. What a tool.
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Old Feb 25, 2022 | 08:40 PM
  #25  
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Originally Posted by IS350USB
It doesn’t matter what I cut out, anyone can scroll up to read your rant. I cut it out cause it was unnecessarily long. My inquire by no means was to specifically increase HP on my vehicle. Again, a simple mod was the inquire with a small benefit being a plus.

Your stating I’m laying out blanket statements as if I’m trying to sell these facts made by the brand to the forum. I’m not the one making these claims, the brand is. So why bash me for it lol.

And we get your point but it didn’t have to come off like a ****. What’s it to you what people do with their vehicles. Mind your own and **** off. What a tool.
My 1st response was not even directed to you? But you actually have exposed yourself here with immaturity also. My post was long due to explaining why and those who Tuned, and the data they discovered. Again you are tripping because I didn't even pay your post any attention at all before I posted the info. Which part of I was Not even looking at or thinking of your Post don't you understand? That's the Crazy thing about this, SMH. Stop having internet temper Tantrum do to your insecurity.

I've been to the Injen site before you likely even drove a Lexus. That Intake has been there for a while now. There is a Dyno with it there also he claims 19hp at the end. When you 1st responded I was thinking what is this guys problem? That was the 1st I went back and read your little post. Dude you are really paranoid seriously. There have been a million times someone posted about something I thought different here and I appreciated it, and did not Whine like you. Again I didn't even pay you any attention so to answer your last question obviously....... I have no interest in what you do with your car. If you read back I can see why you Targeted me. Because you got checked by other thinking the 19hp claim. In fact I am the only one who said it is possible. This is long again because you don't get it. Have a nice day!

Last edited by jgscott; Feb 25, 2022 at 09:50 PM. Reason: Sp
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Old Mar 13, 2022 | 07:26 PM
  #26  
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Originally Posted by IS350USB
Any suggestions on the best Air Intake?

K&N, Takeda, Injen, etc.
all of those intakes are compatible on the 2021 is350? it doesnt say on their website
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Old Mar 13, 2022 | 09:06 PM
  #27  
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Originally Posted by rxtodd
all of those intakes are compatible on the 2021 is350? it doesnt say on their website
Yes. The stock intake hasn't changed on the 2021 IS 350.
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Old Mar 14, 2022 | 11:42 PM
  #28  
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Originally Posted by arentz07
Yes. The stock intake hasn't changed on the 2021 IS 350.
It seems like the OP of this thread had to modify the takeda heat shield to fit on the 21 though
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Old Mar 22, 2022 | 01:31 PM
  #29  
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Originally Posted by LexoticJ
looks good. I went with a injen intake on mine. Exhaust in route.

And I bagged it.

Just wondering but where are the calipers from? Looks so clean.
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Old Mar 24, 2022 | 08:22 AM
  #30  
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Originally Posted by is350becky
Just wondering but where are the calipers from? Looks so clean.
Those are GS F brakes if I am not mistaken.
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