2-1 collector?

[SwiftE30]

so im ordering a kit from columbia river mandrel bends to fab up my own exhaust, BUT i am 5 hours away from my car so i can't measure anything. I want to order a 2-1 collector for the OEM m50 midpipes, but i dont know what size diameter the pipes are. i am going with 3" piping, so i need to know if i need a 2.25"-3" collector/ 2.5"-3" collector etc, etc,

can anyone help me out on this? thanks

[SwiftE30]

anybody?

[tonytony]

i think the downtubes were 1.75, but its been awhile since ive looked at the exhuast, im just now getting back into the scene

[nando]

it's probably closer to 2" on the secondaries. but you really need to measure..

[SwiftE30]

yeah i know, but im 3oo miles aweay and wont be back till first week of may. And no way of getting a measurement from my family member. thats why i was hoping somebody on here could help me out ang get the measurement, so i can get a big order of parts ordered and shipped to be ready for when i get home.

[SwiftE30]

...anybody want to take a quick measurement for me? im sure half the members on here have obd1 oem midpipes.

[tonytony]

sorry obd2 downpipes

[SwiftE30]

sorry obd2 downpipes

are they different sizes?

can anybody help me out on this? i'm heading home soon and would like to hve the parts there when i get back so i can start welding them up.

[tonytony]

ill measure tomorrow

[SwiftE30]

awesome. thank you.