Cobb DP —> Nameless CBE

[Mr. Electric Wizard]

Is this how you connect a 3” Cobb DP to a 3” Namless CBE?

I would have thought that the foil gasket would fit in there better.

Am I missing anything?

 

Thanks!

[Mr. Electric Wizard]

There's another paper gasket that is 3" ID, so it seems this piece is a second gasket for this junction. Just imagine that gasket is in the photo.

[busyychild]

I’m wondering the same thing on how the new full 3” Cobb GESi downpipes fit on aftermarket 3” catback exhausts.

 

As you said, I imagine it should go:

 

DP > flat DP gasket > 3” donut gasket > midpipe

 

Which should work since the flared flange will center and retain the 3” donut gasket. I would just make sure not to torque the bolts too tight where it deforms the donut gasket.

 

The instructions on the Nameless website only account for a stock downpipe:

 

https://shop.namelessperformance.com/content/install-guide-ab-mp-cb.pdf

 

The instructions on the Cobb website assume a flat flange on the aftermarket catback:

 

https://cobbtuning.atlassian.net/wiki/spaces/PRS/pages/1370783745/524210+-+Subaru+GESi+Downpipe

 

Please post photos with what you end up doing if you don’t get any other responses before then.

Edited September 4, 2021 by busyychild

[rhino6303]

You just use the nameless donut gasket. It sucks down and doesn't leak. Don't overtighten it.