Handogen

p1fcl01, check out this URL. It's a K&N post by Obidon concerning the K&N model numbers... apparently O'Reilly recommends the 33-2052 over the 33-2145 because it fits better. Mine dropped right in.


https://www.clublexus.com/forums/sho...threadid=44154

p1fcl01

Best Price I've found in anywhere. Just purchase the K&N filter for my 1999 RX300 for $37.83 and no shipping charge. I know about the model 33-2145-1 might not fit but I'm going to try anyway. If it doesn't I put it in my Sienna which use the same model filter. The site is www.ajusa.com. Oh, check out their used car department, some real nice Porches and Bimmers.....

Hope this helps.....

p1fcl01

Just received the K&N Model 33-2145-1 for my 1999 rx and it fits perfect. Don;t know about the mileage yet, but will post results later...

PortAh

Is the K&N 33-2145-1 the new replacement to older 33-2145
which someone said too small to fit?

Clarification please.

Daddy-O

PortAh,

I got this from K&N last week. Hope this clarifies things for you.



-----Original Message-----
From: martinj@knfilters.com [mailto:martinj@knfilters.com]
Sent: Thursday, August 08, 2002 7:04 PM
To: 'Paddy Wagon'
Subject: RE: Lexus RX 300


Dear Customer,

The replacement air filter for your vehicle is part# 33-2145-1. Please call 888-425-0325 to find suppliers in your area or log on to <http://www.knfilters.com/wheretobuy.htm> for the nearest dealer.

Thanks for writing,


Martin Jackson
K&N Engineering
Technical Support

p1fcl01

Hi all,
I just filled up my tank and check for mpg and it's up from 18.4 to 20. I'll see how the next tank will do. Will let you all know.....

commack4

Different for different years!
THe 2001 & 2002 latest model #33-2145-1

I installed in my RX 2001 and my 2002!

Just drove from LI, NY to Rapid city, SD.

AVG MPG 24.5

AVG around town 21.5
on 87 octane

Handogen

87 octane? I know the manual says you can run it in your vehicle... but why would you just to save a couple bucks? You're driving a Lexus!!

inthemix

When I go to various auto parts sites, some of them are coming up with two different part numbers for the K&N Air Filter.
33-2145-1 and 33-2052 ($10 higher). Dimensions are close but not exact.

What is the difference between these two filters? I have a 2001 RX300 2WD.

inthemix

Never mind. After reading other posts, it appears that 33-2052 is what I should order.

However, when you call K&N, they recommend 33-2145-1 (go figure??).

I believe I will take the advice of those who have ordered/installed over the K&N tech support reps.

cephraim

I know this is an old thread, but I was researching before buying.

I just bought the 3145-1 from Performance International after having spoken with both K&N technical support and Performance.

They both had the same response about the 2052:

Although it may fit tighter in the box, that is of no benefit. Rather, it is the seal of the filter to the air intake hole (or whatever it is called) that matters.

Also, neither K&N nor Lexus will be liable if something goes wrong because of the use of the 2052. (not that it would, but...)

Anyhow, thanks to this forum and these threads -- I'm looking forward to the improved gas mileage!

Eph