Will 370z paddle shifters fit on g37 coupe ?

 

YesI'm not 100% on the shroud

My question is will other Nissan paddle shifters fit?
Example, Altima paddle shifters come up on eBay for cheap
Paddles are obviously a different shape, and maybe not quite long enough...
But the switch mounts and electrical plugs look the same

 

It is safe to say that 99% of Nissan's COLUMN mounted paddle shifters will work regardless of model. They are only simple momentary switches that carry a ground signal. The main difference will be in the shape/size of the paddle and the associated column shroud/cover. All this hinges on whether your car is pre-wired for the paddles or not.

Now that Nissan is switching to STEERING WHEEL mounted paddles adding them is a different beast entirely (believe me, I know) but that is not relevant here...