Manifold and exhaust pipe

DatsunMax · Post by **DatsunMax** » Mon May 11, 2015 10:15 pm

Hi 311s Families,

I am working on my 1600. I bought a aftermarket manifold and it is 2.25" in diameter. The frame's exhaust holes is only 2" in diameter. So how do I go about this? Go under the frame? I really don't want to go under the frame. It is ugly and not safe.

Worst case I just use the original header.

theunz · Post by **theunz** » Mon May 11, 2015 10:36 pm

Reduce it down to two inches or ovalize it to fit through the frame. You probably don't need 2.25 on a 1600 anyway.

Nissanman · Post by **Nissanman** » Tue May 12, 2015 5:19 am

How about a flexible connection that also reduces the pipe diameter to suit the chassis holes?

msampsel · Post by **msampsel** » Tue May 12, 2015 6:05 am

You might consider ceramic coating inside and out of your manifold or header if it is off the vehicle.
Seems it might keep things cooler. I am thinking of doing mine someday. I think my header is 2"
and for a 2 liter 1600 it works just fine.

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Manifold and exhaust pipe

Manifold and exhaust pipe

Re: Manifold and exhaust pipe

Re: Manifold and exhaust pipe

Re: Manifold and exhaust pipe