cai piping

[68redbug2000jetta]

hi folks im doing the aeg intake manifold swap on my aba motor and i have to make my own cai up.anyways what size piping should i use.2-1/2 half or a different size?thanks

[911_fan]

same as MAF outlet diameter.

[68redbug2000jetta]

its like 2-5/8 i think (i measured it..forgot what it was now.mighta been 2-3/4).most tubing is either 2",2-1/2 or 2-1/4 so im not sure if i use 2-1/2 or go 3".i dont know much about intake stuff

[Hurt]

Buy a eBay 1.8T CAI. The piping fits.

[68redbug2000jetta]

i have a 1.8t cai laying around but id have to remove the windshield washer tank just to run it but i want to keep it in the bay as i use it (we have ALOT of dump trucks go up and down 95 so they put alot of trash on the roads plus other construction crap)..i could use the coupling maybe as its perfect for the maf and just get 3" piping as that what the cai size is...