Can you put a CAI for a GT on an ST?, Can you put a CAI for a GT on an ST? Options

[CelicaST94]

Can you put a CAI for a GT on an ST? I can't seem to find one for STs except the garbage chromeintake or whatever on eBay.

[Shink]

Can you put a CAI for a GT on an ST? I can't seem to find one for STs except the garbage chromeintake or whatever on eBay.

OK, not sure what engines you have in US GT cars, but there are basically two engines:

ST/SR/LTD Model code AT200, engine 7A-FE,
Air filter pipe work size is 63mm (2.5")

GT Model Code ST202, engine 3S-GE,
Air filter pipe work size is 70mm (2.75")

So, if the pipe width is the same, you have no problems. If they are different, you're better off having a CAI pipe that is narrower than the engine's inlet pipe.

I hope this answers the question, or is useful in some way

[DEATH]

If they are different, you're better off having a CAI pipe that is narrower than the engine's inlet pipe.

I only disagree with this part of your statement. Fluid dynamics says you should have a larger pipe than the smallest orifice in line so as to create a better than useable volume available.
In all honesty it doesn't really make a noticeable diff.
SRI > CAI anyway [but lets not get that arguement going again]

[Shink]

Fluid dynamics says you should have a larger pipe than the smallest orifice in line so as to create a better than useable volume available.

Doesn't a larger inlet pipe at the engine create a positive vacuum pulling un-disrupted air into the engine?

But my understanding of fluid dynamics is intuitive rather than theoretical. Some more mechanically knowledgeable people have suggest same, though.

Either way, you're definitely right in saying the difference is barely noticeable. Mostly it's the temp of the air that seems to matter...as in, it's better when it's a cold day