Ok, so i bought the K&N drop in filter online at E-bay and the seller has an auction for a 2007 GS 350 K&N drop in filter...

http://cgi.ebay.com/ebaymotors/K-N-A...3286.m20.l1116

Now when I get my confirmation email saying its being shipped I notice it says for a 2006 IS 250/350... I told him I hope they are sending the right part and he tells me this item fits 12 different Lexus models.. Does any one know if this is true ?

 

12?! which 12?! i can see how is350 and gs350 uses the same, and maybe the is250. but what else?

in the old gs, gs300, gs400, and gs430 they all used different drop in filters

 

dude it is not that hard to check

http://www.knfilters.com/air_filter/Lexus_iS350.aspx
http://www.knfilters.com/air_filter/Lexus_GS350.aspx

 

Hahahahaha... I just got owned ! Thanks dude I feel like a noob now

 

Anyone know how much HP you actually gain with this drop in FILTER?

 

nothing to crazy probably 5-8 hp ? I just want my engine to breath better until I get a real Intake system...

 

5-8 HP gain? Are you serious? Most cars gain nothing in the form of HP from a K&N drop in. I use K&N and TRD drop in on all my cars, but usually dont notice any power gain from a drop in, maybe a little on the top end. The reason I use it is to save money, not for performance.

 

yes, I am serious... It does add atleast 5hp and No you probably won't notice that small difference... I am using it temporarily until I get a real Intake system... I just wanted something for now...

 

I would pass on the K&N, but check out the link and draw your own conclusions.
http://forums.nicoclub.com/zerothrea...postid=1864002

 

I dont know about that rey, I think 5-8 hp gain from a drop in air filter is a pipe dream. Even the K&N site only claim a 1-4 horsepower gain:

http://www.knfilters.com/filtercharger.htm

That means most of the time you gain nothing. In fact, there have been quite a few independent studies and dyno runs that show K&N drop ins gain no horsepower or very very little. Here is wab site from a guy who did his own dyno run and found no power gain what so ever.

http://www.jackphelps.com/frontier/dynoknfilter.htm

If you want a 4 or 5 horsepower gain, you need to install a K&N cold air intake.

 

exactly, i said at least 5 hp, whats the big deal , ?

 

I have purchased a K&N Drop in for my previous vehicles in the past. I never bought it for the performance aspect, it was more for longevity and the re usability that was most appealing.

 

totally.... able to reuse the filter that's the key imho

hp? 3/300 isn't going to be felt

 

I just installed my K&N filter earlier 2day, it literally took me 2 minutes to replace... My stock filter was really dirty with all this debris on the bottom side... I did not know it would be that easy... No tools required at all... The filter was already pre-greased so no mess !!!

I also installed a TYC carbon air filter for my AC... WOW, what a difference... No more moldy/ old air smell coming out of my a/c... If you guys have not replace your cabin air filter, I highly recommend it... Thats also took 2 minutes to install... (It is located in the glove box, behind the T shaped shelf for those who did not know.)

 

carbon? um... ok. I don't see anything wrong with a regular lexus one... since all filters do get old and need to be changed. I would hope it smells better after changing the filter, otherwise something might have died in your car.

But yeah, if I get a drop it... it will be the k&n so i can just clean it or w/e and reuse.