All Trac / GT-four Intake Systems

For frequently asked questions and answers about intake systems, to go the Modifications FAQ

For use with all universal cone filter kits:

HKS Air Flow Meter Adapter for Universal Filter  PN# 17106-001124                  $29 at Carparts.com

BOLT ON FILTERS

The most famous of them all.  K&N offers a stock replacement drop in filter.  The easiest filter installation available.  Offers a higher flow washable filter.  A separate cleaning kit is required.  The last filter you will ever buy.  Offers limited million mile warranty.  50 State emissions legal.

PRO: Simple installation, vehicle specific part numbers, filter remains inside box, resistant to heat.  Inexpensive.
CON: Not an open air filter ideal for maximum horsepower gain, although K&N cone kits are being developed in the UK.  Stay tuned.

K&N Insert filter  PN # 33-2030           $35-45
K&N Cleaning kit  PN # 99-5000           $10.99

One of the most popular high flow filters is now available in insert form.  Identical to the K&N insert style, but made from high flow famous HKS green foam

PRO: Simple installation, vehicle specific part numbers, filter remains inside box, resistant to heat.  
CON:  Difficult to clean

Part Number #1506-ST001  $39 at carparts.com

Available for $31.95 at maccar.com

Known as the highest cleaning ability in a aftermarket performance filter due to it's paper design.  Yet this unit still allows higher flow than the standard replacement from Toyota.

PRO: Simple installation, vehicle specific part numbers, filter remains inside box, resistant to heat, easy to clean paper design.
CON:  Performance suffers over time, ruined if becomes wet

Part Number #503-T102

Availability unknown, check your APEX'i dealer

Most would argue the best performance for Toyota comes from toyota.  This is Toyota Racing Development of Japan's High Flow Filter.  It is a foam style which claim higher power output than standard paper or K&N style cotton.  This item used to be rare, but is now available through your local dealer.

PRO: Simple installation, vehicle specific part numbers, filter remains inside box, resistant to heat.  Toyota quality.
CON:  

Part Number #00642-17801-004  From Toyota

Retail Price: 74.99

All Trac Club Discount Price: 64.95

Click here to order

The widely known HKS intake.  A funnel shaped air horn smooths air in fast.  Not known for low end response, but the filter of choice on many turbo high horsepower applications.  Element is replaceable by unscrewing a knob and lifting the top screen.  There is a bolt on kit for ST185, and ST205.  The ST185 kit contains adapter, filter, and small elbow to turn the filter towards the battery.  It can be adapted to ST165 with little effort.

PRO: Air horn intake, easy to replace element, bolt on easy installation
CON: Slight low end lag, more expensive than other intakes, costly replacement screens

ST185 Kit 150mm Filter, 70mm Inlet  $139 

PN# 1504-SPFT03  at Carparts.com  

Available for $129 at maccar.com                           

ST205 Kit 200mm Filter 100mm Pipe  21,800 Yen

UNIVERSAL FILTERS

These are aftermarket performance filters that are not necessarily designed to be on a Celica All Trac.  The companies offer universal versions that can be adapted with minor modification.  In most cases this requires removing the battery and relocating it to the rear.  You can read about an All Trac Club member that performed this modification on his ST185 All Trac.  Some filters require a universal adapter which turns the 3sgte Air Flow Meter into a 3" round opening which most filters accommodate.  More information about this adapter is found at the bottom of the page.

CLICK HERE to read about Matthew Crawley and his battery relocation project.

Unique Greddy/Gracer Airinx Air Filter.  High flow, high horsepower capability.  Double Material Foam filter for maximum filtration.  Inside air horn for more air velocity.  Using this intake requires custom mod as the filter itself is too large to fit in the engine bay without moving battery to the trunk.  Has a nice quick release key at the front to remove screen and foam without effort.
PRO: High flow capacity
CON: Extremely expensive, replacement elements expensive, no all trac specific application

12500132   UNIVERSAL ADAPTER 70mm         XM-02   49.95

12500001   AIRINX AX-S FILTER (SMALL)                   115.95

12900001   REPLACEMENT FILTER ELEMENT   AX-S   42.95

From maccar.com

The new Apex Power intake.  Known for it's high performance products Apex has stepped with what it claims to be the maximum flow on the market.  The power intake replaces the Apex super intake which was made of stainless steel.  The twin intake design l

PRO: Dry type filter, no oil involved, Double intake (top and sides)
CON: Slightly pricey, custom work required.

*Generic 3sgte adapter required

Bltiz joins the air intake arena with a 100% stainless steel mesh filter.  Claims traps particles as small as 150 microns.  Much more filtration than a foam or cotton filter.  It is washable and never needs to be replaced.

Click here to see blitz installed on GT-four

PRO: Very durable and strong, high filtration, exotic style
CON: Not smog legal, expensive, harder to install than other cone filters

Universal

All prices are from maccar.com

The MR2 kit will come with appropriate 3sgte adapter.  You may also be able to use some of the mounts, but the installation will still have to be custom.  You can buy the blitz core and the 60 or 70mm adapter which will allow you to custom mount your own setup.  You will also need a generic 3sgte AFM adapter.