Help identify exhaust for oil line purchase

[lightbulb8817]

Can someone please take a look at these pics and let me know what type of exhaust this car has?

It's a 1975 2.7L. Car came from Oregon area, but it has an "EGR" light in the dash, so i'm thinking it may have been a California car originally with the thermo reactors replaced...?

I'm trying to install oil lines as this car didn't come with an oil cooler and need to identify the exhaust to purchase the correct lines. I'm hoping the back-date crossover pipe oil line (part no. 911107739) will fit this exhaust system / the car.

Thanks for the help!

[Joe Bob]

Looks like 73 and earlier equal length heat exchangers. You will need, if not already installed a different oil line. Pelican carries it, call and ask for Glenn Sager, he knows.

Any two in muffler will work. I like the single out as it does not have a drone.