i just recenly bought a 2006 350z last friday and it only has 22,000 miles on it. it sounds really good i did not know but when i recieved it, it had a injen exhaust and a cold air intake. just wondering if injen is quality or not? thanks ahead of time

 

yes...

 

Yes, it is. I've had my Injen exhaust for 4 years now... got +90K miles on my 06 and the exhaust is still looking great. no issues with it.

 

Yes, Injen products are good quality.

 

Injen was one of the first manufacturers to make a dual exhaust for the 350Z. There are several varieties but essentially the same.

Not sure about the intake. The long intake (in front of the radiator) has lost favor.