MrBalistic

do yu guys have any solution to the cold air intakes sucking in hot air? I have a k&n typhone on my 2011 is250 with the heat shield. I notice when I go to work at like 3am my car drives better with better throttle response than during the day when its hot out. My theory is that at 3am the air is much cooler than during the day and that's why it has a better response. Please Correct me if im worng and also is there is a solution to this problem? thanks

darkdream

Isn't that a short ram intake and not a cold air intake?

jdmSW20

iTrader: (12)

there is no cold air intake for the 2IS... the stock intake is already by design a "cold air intake"

if you have a short ram intake(what basically all of them are) you essentially have a hot air intake regardless

BoyOhBoy

iTrader: (9)

Only true cold air intake right now is darkness' custom one labeled as "Ultimate Performance CAI" (https://www.clublexus.com/forums/per...ir-intake.html) and PPE intake which is about to be released (https://www.clublexus.com/forums/per...and-video.html)

MrBalistic

thnx a lot guys, im gonna get the darkness custom one asap

BoyOhBoy

iTrader: (9)

Ya, I have that one just sitting in my garage right now! Got shipped to me last week. Not sure if I still want it because my exhaust is already so loud.

Gville350

iTrader: (10)

Yeah, you might as well call all of the SRIs a hot air intake!

azfsprt

iTrader: (4)

Ya those are all SRAI.
The only real ones are Darkstars CAI and in the future PPE's.

I also have the Ultimate Performance CAI, even if you have the exhaust its not that loud. If you have the exhaust it will actually sound better and more so on the exhuast over powering the CAI sound.

Here's my review.
https://www.clublexus.com/forums/per...-true-cai.html
Darkstar did a lot of test on this intake and its well worth the money vs the Hot sucking SRAI with heat shields that still suck hot air.

Need4Speed

colder air always helps the vehicle perform better.

Unfortunately in this heat ( for example in California) right now its very hard to have your vehicle breath cold air even with a heat shield.

a good option is a intake that is both a cold air and short ram.

azfsprt

iTrader: (4)

I think regardless a CAI is still much better, it gets outside air temp into the intake rather than hot air from the engine bay.
Especially for the Ultimate Performance Air Intake It actually gets cold air from the brake duct vent from the front bumper.