Cold Air Intake for IS350?? - Lexus IS Forum
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post #1 of 22 (permalink) Old 11-05-2007, 11:11 PM Thread Starter
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Cold Air Intake for IS350??

Are there any cold air intakes for the is350? I've been looking around for awhile while now but i can only find short rams. If there are any CAI's, can anyone tell me where I can get one? and which is the best?
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post #2 of 22 (permalink) Old 11-06-2007, 07:17 AM
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ARC supposedly sells a good cold air system, but it's insanely priced (I mean INSANELY priced, 4-8 times more expensive than most other intake systems).

Other than that nothing available will give you any more gains than the Joe Z intake pipe with stock airbox, it'll just cost more.
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post #3 of 22 (permalink) Old 11-07-2007, 12:38 PM
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Yeah, the ARC unit is crazy expensive. How does $889 sound for an intake...

Boom Plus Toys > Performance > ARC > Induction Box

I hope it comes with more than this...

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post #4 of 22 (permalink) Old 11-07-2007, 04:21 PM Thread Starter
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o jeez...i was hoping for about 350 at most
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post #5 of 22 (permalink) Old 11-07-2007, 07:54 PM
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Yeah, just put a Joe Z pipe on there and call it a day
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post #6 of 22 (permalink) Old 11-13-2007, 12:56 AM
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what about afe

afe claims 13whp gains
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post #7 of 22 (permalink) Old 11-13-2007, 05:25 AM
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K&N claims 11.27 @5800

Every manufacturer will claim numbers but you need to take them with a grain of salt. You need to pick the intake that fits your budget. Knightshade has the right idea. Personally, i went with the K&N because I had the money and have always trusted K&N parts on every vehicle I have ever owned.
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post #8 of 22 (permalink) Old 11-13-2007, 06:56 AM
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I don't recall anyone who wasn't trying to sell you the intake they themselves make showing more than about 5 hp gain for any intake on an IS350... but dyno testing on intakes is kinda tricky since they're generally done with the hood open, the vehicle standing still, and fans blowing over the intake.
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post #9 of 22 (permalink) Old 12-03-2007, 01:55 PM
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go with the joe-z.

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post #10 of 22 (permalink) Old 03-18-2008, 09:53 AM
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Anyone try AFE intake?
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post #11 of 22 (permalink) Old 03-20-2008, 11:33 AM
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I really like the K&N....and not because they sponsor me...

Nice when combined with the Borla exhaust....and it's on 250 AWD !!!

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post #12 of 22 (permalink) Old 04-15-2008, 05:59 AM
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the injen intake gave me 8hp and 10tq just the intake..

survey says, one more for the good guys!
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post #13 of 22 (permalink) Old 04-15-2008, 07:07 AM
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Quote:
Originally Posted by badx33 View Post
the injen intake gave me 8hp and 10tq just the intake..
No, it didn't.

The -stock- intake provides more air than the engine can use. There might be a couple hp to pick up from a smoother intake path (how the Joe Z gains anything) but no way you gain that much from a hot air intake with an open element. Especially not on a 250.

I could certainly see some unscientific testing that makes it look that way though.
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post #14 of 22 (permalink) Old 04-15-2008, 07:32 AM
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i have the dyno results to prove it! not with me right now but i do

survey says, one more for the good guys!
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post #15 of 22 (permalink) Old 04-15-2008, 12:19 PM
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Quote:
Originally Posted by badx33 View Post
i have the dyno results to prove it! not with me right now but i do
What methodology did you you use to conduct your various before and after tests, controlling for all the various factors, across what period of time including letting the ECU relearn?

Or did you just swap the part and dyno it, which doesn't prove anything except you spent like $300 to make your car louder.

(all of which ignores how useless a standing-still with your hood raised dyno test really is for an intake system, but that's besides the point
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