recommendations for replacement air filter?

we bought a 99 gs400 that came with an hks intake system, and it kept throwing CELs. after finding out how much it would cost to dyno tune with an apexi safc i chose to reinstall the airbox with it's dingy original filter, which is hurting performance.
i was wondering if there are aftermarket options to a stock panel filter, or should i stay with stock? i do not want to use k&n because of the oil messing up sensors over time. i know i know... use oil sparingly, but after so many times on different cars i has cost me and i don't want to do it anymore.
i tried searching on the net but could only come up with a few names...
- trd
- tom's
- apexi
- blitz
does ne1 have any input on how these perform? which ones are dry filters? paper or foam? disposable or reusable? price?
thanks in advance...

we bought a 99 gs400 that came with an hks intake system, and it kept throwing CELs. after finding out how much it would cost to dyno tune with an apexi safc i chose to reinstall the airbox with it's dingy original filter, which is hurting performance.
i was wondering if there are aftermarket options to a stock panel filter, or should i stay with stock? i do not want to use k&n because of the oil messing up sensors over time. i know i know... use oil sparingly, but after so many times on different cars i has cost me and i don't want to do it anymore.
i tried searching on the net but could only come up with a few names...
- trd
- tom's
- apexi
- blitz
does ne1 have any input on how these perform? which ones are dry filters? paper or foam? disposable or reusable? price?
thanks in advance...
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according to the k&n website:
- k&n part number for gs400 is 33-2137
- oem toyota part number is 1780150030
but i cannot find listing for the gs430... is this the part number for what u have?
local lexus dealer is not very helpful unless i'm buying something from them
Last edited by Benjamin T; Aug 19, 2005 at 10:19 AM.
according to the k&n website:
- k&n part number for gs400 is 33-2137
- oem toyota part number is 1780150030
but i cannot find listing for the gs430... is this the part number for what u have?
local lexus dealer is not very helpful unless i'm buying something from them

I just checked the K&N web site and found this (do a search on filter size and select 33-2220):
K&N Applications for 33-2220
Product Information and Specifications for 33-2220
2006 LEXUS GS300 3.0L V6 F/I - All
2005 LEXUS GS430 4.3L V8 F/I - All
2005 LEXUS SC430 4.3L V8 F/I - All
2004 LEXUS GS430 4.3L V8 F/I - All
2004 LEXUS SC430 4.3L V8 F/I - All
2003 LEXUS GS430 4.3L V8 F/I - All
2003 LEXUS SC430 4.3L V8 F/I - All
2002 LEXUS GS430 4.3L V8 F/I - All
2002 LEXUS SC430 4.3L V8 F/I - All
2001 LEXUS GS430 4.3L V8 F/I - All
Last edited by rheiy; Aug 19, 2005 at 05:15 PM.
i was quoted $100cdn/hr straight time to do the safc, not including the cost of purchasing and installing the controller itself. i was told to expect it to be as much as $800cdn once everything was in and tuned







