Difference between ASZ & BLT

[Ibiza Evo 2]

All this time I thought I had a ASZ,but today I was removing the back seats and I saw the sticker next to the spare wheel and it looks like I have a BLT

That's why the cupra D FMIC conversion didn't fit properly at the EGR,I have a different EGR.
Does anybody know some more differences between the 2 ?

 

[SHADY-NINJA]

have a look on your logbook or you can remove the engine cover and look to the right of the engine.

 

[Ibiza Evo 2]

Yes,I know that.
But what I want to know if there is a difference between the ASZ & BLT

 

[Kam]

One is a sandwich ....

 

[RichardBW]

blt is euro 4. Also has slightly different injectors but close enough not to worry about when tuning. It was a tweaked ASZ for emissions purposes
The blt us also used in the last of the Fabia vrs cars and the Polo 9n gt.

 

[Ibiza Evo 2]

I don't worry about the tuning...already have 220bhp en 350lbs/ft
So with other injectors I would get higher figures