As the Title says, are there any differences in size? I heard that the JDM STI Maf Sensor is bigger then the UK WRX ones?
Does anyone have the exact size present? 76mm/80mm/90mm??

Greets Chris

 

I can measure it tomorrow at work. What year specifically?

 

That would be great! I was looking for the size of the GC8 E-Type (Version IV). I think it is 80mm but I am not sure.
However I have no idea how big the WRX one is? Maybe 75mm?

Would be great if someone could confirm.

 

Hi Sing, I think your right...I measured mine a while ago, cant remember exact figure now. But you're right the JDM STI is a larger diameter; am not sure if the STI's prior to vers 4 had them.But the v4 deffo has.
Also I dont know if all, but I am presuming (dangerous i know ), that all the 280 ps WRX's have them as well. My '97 wrx is the 280 ps version and has the STi 4 MAF.
Hope this helps.

 

my sti 3 maf is 80mm

 

they are diffrent sizes

here is mine and my mates uk same MY side by side








uk version would not work on my car at all

 

22b Maf is ID 84mm

 

Hey guys, thanks a million for those good informations!!
@StickyMicky - Great Pics!!! They help heaps!!!

I was asking as I am wondering if I would be able to fit JDM Parts such as Cold Air Intake, Filter, Inlet Pipe, Zero Sports Pipe from MAF to Inlet Pipe etc.

The definitiv answer now is NO! I need a bigger MAF ; ) means more air for my EJ20K - I think it looks forward to it : ))

 

the mafs will plug into the diffrent models but mine didnt run very well with the uk maf fitted

it wouldnt idle and was shaking the engine

 

@StickyMicky need to remap after the change of the MAF certainly. Makes a big difference to the AFR ; )

 

I think Micky just likes taking pictures of parts of cars!!

 

Hey guys, I was able to mesure 2 yesterday. The GDB`s MAF is only 76mm. The GC8 STI Version`s MAF is 90mm. The WRX ones are smaller but only a bit. So they might be 80mm or maybe also the 76mm...

Greets Chris

 

My MY98 WRX had a 90mm version.

 

mines the same as his ^^^^^^