2015 exhaust diameter

Chuy · 01-14-2016, 03:56 PM

I have heard that we have a two and a half to 3 inch exhaust I'm just trying to find out what it is. Do we have to replace the mid pipe and H pipe.

EzDz · 01-14-2016, 07:41 PM

The cats are 2 1/8th inch i believe... I measured the stock nismo muffler and its inlets were 2 1/4th I think. They are by no means 3, I could be off in the other numbers though

2011 Nismo#91 · 01-15-2016, 08:40 AM

The most restrictive parts of the stock nismo setup are around 2 and 1/8 and are located up front, I had some approximate diameters posted a few years ago. If it really matters I could go and just measure it since it off the car now.

Chuy · 01-15-2016, 12:46 PM

Thanks for the input was hoping to save some money but I guess it's just better to do the entire exhaust then.

01-14-2016, 03:56 PM	#1 (permalink)
Chuy Enthusiast Member Join Date: Apr 2010 Location: Colorado Springs Posts: 474 Drives: 2015 NISMO Rep Power: 15	2015 exhaust diameter I have heard that we have a two and a half to 3 inch exhaust I'm just trying to find out what it is. Do we have to replace the mid pipe and H pipe. __________________ Miko 2015 Nismo Tech: nothing RIP Ginger 2009 370Z Sport Touring

01-14-2016, 07:41 PM	#2 (permalink)
EzDz Enthusiast Member Join Date: Aug 2015 Location: Pittsburgh Posts: 309 Drives: 2016 370z Nismo Tech Rep Power: 9	The cats are 2 1/8th inch i believe... I measured the stock nismo muffler and its inlets were 2 1/4th I think. They are by no means 3, I could be off in the other numbers though __________________ Nismo \| Moore Performance \| AAM \| Tein \| PPE \| Tomei \| Eibach \| Z1 Sponsored: Mishimoto

01-15-2016, 12:46 PM	#4 (permalink)
Chuy Enthusiast Member Join Date: Apr 2010 Location: Colorado Springs Posts: 474 Drives: 2015 NISMO Rep Power: 15	Thanks for the input was hoping to save some money but I guess it's just better to do the entire exhaust then. __________________ Miko 2015 Nismo Tech: nothing RIP Ginger 2009 370Z Sport Touring

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01-15-2016, 08:40 AM	#3 (permalink)
2011 Nismo#91 A True Z Fanatic Join Date: Mar 2011 Location: NJ Posts: 2,381 Drives: slowly Rep Power: 33858	The most restrictive parts of the stock nismo setup are around 2 and 1/8 and are located up front, I had some approximate diameters posted a few years ago. If it really matters I could go and just measure it since it off the car now.