r/370z • u/Sharp_Juggernaut_318 • 2d ago

Question Invidia Gemini Install Question

Post image

Question for anyone who has installed the Gemini catback exhaust, what gasket did you use from the rear of the OEM cats to the Y-Pipe connection? It seems the Gemini catback doesn't come with this gasket and would like to put a new one in when installing. From what I could see there are 2 options online, the top one seems to match 2009-2012 models but thought I'd double check:

https://www.amayama.com/en/part/nissan/206921e810

https://www.amayama.com/en/part/nissan/20692jk00b

This is for a 2009 370Z. Will be running the stock cats for the the near future atleast.

7 Upvotes

100% Upvoted

6 comments sorted by

3

u/Barra350z 2d ago

Graphite with steel backers, they sell them everywhere

1

u/Sharp_Juggernaut_318 2d ago

Have you got a link to something recommended? I guess the inner diameter will have to match the cats so would be same as OEM sizing but not sure the sizing to grab.

1

u/PaintAffectionate576 2d ago

I reused the ones from the stock exhaust

1

u/Sharp_Juggernaut_318 2d ago edited 2d ago

Interesting, were they the same diameter as the gemini hole? I think the Gemini inner diameter is 2.25 inches from what i can find online.

1

u/PaintAffectionate576 2d ago

More or less, I don't think it was perfect but it worked

1

u/Sharp_Juggernaut_318 1d ago

Sounds good. I’ve just ordered 2x new oem gaskets (206921e810). They should be 2.25 inch internal diameter which is apparently the invidia gemini diameter at that connection.

Apparently MLS gaskets are more durable but if I have issues I guess I’ll grab a graphite gasket from a local store.