Look for a Y pipe ( cant find it )

[Matt-B]

I measured my headers, and there aprox 1.75" from my m50

im going 3 inch exhaust, so I need a Y pipe for 1.75 dual in, and 3in out...does anyone have a link? I looked for an our or so this morning

-matt

[FredK]

You'll likely have to find a 1.75" dual merge from Columbia River Mandrel Bending and have them weld a transition megaphone to 3.0".

You might be able to score a 1.75 dual merge off Ebay (search: exhaust collector), as 1.75 to 2.25 or 2.5" is a common size for V8 tri-Y headers.

[Matt-B]

No luck on ebay, ill keep looking around...

[LJ851]

Prob have to be custom, A 3inch pipe off 2 1.75s is too big as i said before. This is why you cant find one. That being said, whoever welded your subframe knows there way around a welder pretty well. If you take him 2 1.75 bends and a 3 inch pipe perhaps he could make them one.

[Matt-B]

Yea, ill probably go buy pipe tomorrow

[MonkeyMadness]

I have custom 2-1 in mild steel 1.75" to 2". I have two vertions 1" between the two or 1.5" between the two inlet.. I can also expand the inlet to 1.875" so the 1.75" slips inside the inlet (part in picture)
I can mod it to exit in a 3"? I'll look into it on monday..

This is the only pic i have on hand right now but i can post up more monday...
It's a crappy pic sorry, it's the piece at the back of the body..

[castros]

If you don't find one LMK, I could make you one to your specs.

[Matt-B]

castros prices? I have no job, and dont wanna spend like 100$

I would just make my own, if it was that much or buy a 2inch y to 3 inch and weld the gap

[MR 325]

What I want to know is why in the world you are going to run 3 inch exhaust on an M50.

[Wishno87]

What I want to know is why in the world you are going to run 3 inch exhaust on an M50.

+1
Absolutely no reason for that.

[Matt-B]

because the headers are 1.75 in x2

3 inch seems reasonable enough to allow good exhaust flow. I doubled the area with the radius on headers and a 3 in pipe is close to the area of headers x2

My m42 has 2.5" so why not 3 inch on an m50? also I have a single exhaust cut out and only have room for 1 pipe

[LJ851]

What I want to know is why in the world you are going to run 3 inch exhaust on an M50.

Thats what i tried to tell him! I guess he doesnt like torque? maybe he will believe you.

[Wishno87]

Thats what i tried to tell him! I guess he doesnt like torque? maybe he will believe you.

He had an m42. I dont think he knows what tq is.
(I'm just kidding matt dont be sad)

[Van Westervelt]

Matt, you need to learn math.

1.75" diam pipe = 2.41 sq in

x2 = 4.81 sq in (stockish)

3" diam pipe = 7.07 sq in (Mayhemish & dumb)

YOU DO NOT WANT 3" PIPE!

[LJ851]

Only one cylinder fires at a time. You do not want exhaust pipe equal to the size of Both collectors. Exhaust pipe diameter is dictated by horsepower and rpm and where you want the best compromise.