K&N Intake Released for 4GS
#1
Rookie
Thread Starter
K&N Intake Released for 4GS
I happened to stumble across this today which i hadn't seen before. Unlike the Cone style cold air intake offering for the 3GS, K&'N essentially uses a new tube similar to Joe Z or the F Sport, and they throw in a K&N OEM sized air filter. This would make sense considering i read posts saying people had to mod the 3GS K&N Cold Air Intake to fit their new 4GS.
Check it out. I think i'll stick with the JoeZ. However, Interesting HP claim of 12.57 HP @ 5498 RPM
http://www.knfilters.com/search/prod...prod=69-8704TP
Check it out. I think i'll stick with the JoeZ. However, Interesting HP claim of 12.57 HP @ 5498 RPM
http://www.knfilters.com/search/prod...prod=69-8704TP
#2
Lexus Fanatic
Interesting. So this deletes the sound generator...
#5
Lexus Test Driver
I wish they would've gone with the cone style filter like their other aftermarket intakes that give a nice growl.
This will be the same as factory setup, maybe even quieter. But it's only $200 and would be a nice eye candy.
This will be the same as factory setup, maybe even quieter. But it's only $200 and would be a nice eye candy.
#7
Rookie
Thread Starter
I knew about the old post.....but it was just released on their website. Over 12hp is a steep claim for what it is. I've always wondered about the "conditions" when they run their dyno tests.
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#9
Lead Lap
iTrader: (3)
There's no need to wonder since their dyno chart shows the date, time, temperature, gear and humidity at the time the tests were performed. K&N is very thorough in their testing and have successfully sued other intake manufacturers and won against them making false claims against their products.
#10
Rookie
Thread Starter
N54MPower,
There are several ways to manipulate your Dyno runs. Well beyond the temp and humidity, lol. Years ago I used to hang around a performance shop that had 2 dynos so i've seen it first hand. One of the ways is leaving the hood open versus closed. Fan/air mover relocation is another. And third, there is always "loading the drum". I'll let you look that one up. I'm not saying their products are not beneficial as i've personally used them on several vehicles....just stating what's blatantly obvious sometimes.
There are several ways to manipulate your Dyno runs. Well beyond the temp and humidity, lol. Years ago I used to hang around a performance shop that had 2 dynos so i've seen it first hand. One of the ways is leaving the hood open versus closed. Fan/air mover relocation is another. And third, there is always "loading the drum". I'll let you look that one up. I'm not saying their products are not beneficial as i've personally used them on several vehicles....just stating what's blatantly obvious sometimes.
#11
Lead Lap
So has anyone actually installed this yet? The growl that it produces is less than the OEM sound generator? The growl that the Typhoon created on the 3GS was outstanding...and much better than this new sound generator on the 4GS.
#12
Lexus Test Driver
There wouldn't be any growl, it's using the stock air box. The 3GS was using that cone filter and no stock air box.
#13
Lead Lap
The metal tube is what's responsible for the increased noise.
Regardless, I bought one and will compare the differences this weekend.
#14
Lexus Test Driver
#15
I put a K&N typhoon on my V6 Venza and what a waste. Lots of noise, performance gain? who knows. On a GS I was surprised at a factory noise producer but the throaty sound is OK. Why ruin a low profile sleeper for no reason. You might as well buy a coffee can muffler like the kid down the street.