Hey guys. I recently bought oem exhaust from someone because I have straight pipe and I'm in the process of being quieter again. The exhaust also came with this y pipe but I'm not sure from which Nissan/ Infiniti vehicle it came from. Just a question will it fit correctly on a 03 g coupe or not?

 

Looks like the HR Y pipe. If that's the case then yes it will fit no problem. And it might make you ever so slightly louder than stock.
Can someone else confirm if it is the Y pipe?