Ok i searched and there was a lot of good info....But i have a specific question. I am about to buy a used exhaust of a guy. He said the exhaust is a true dual. But it doesnt have the H pipe. Meaning the pipes arent connected at all. Which model is this? i have read that there is a 1985-1986. But does anyone know the difference? is the one with the h pipe any better? i plan on getting an h pipe custom welded. But do the exhaust that come with the H pipe on already have any other things changed that makes it better? And is it even out yet?? Thanks in advance

 

The new one is the Injen Titanium Tip Track Edition SES 1986TT
The older one is the SES 1986C, I believe.

The main pipes are larger on the new version (50mm vs. 60mm). Ti ends. H pipe. Unknown other changes.

 

I have the original Injen Super SES Cat-Back Exhaust System . Posted plenty of photos in the exhaust forum. Just search. BTW I cannot answer you personal message: mailbox is full.

 

There are 3 Injen exhaust systems for the 350Z.

Angle tip: The first had angled SS tips that came with user installable tip silencers. There was no H or X pipe and all pipe connections were 2 bolt flange.

Straight tip: The second and probably most common has straight SS tips with the silencers installed into the back boxes. There is no H or X pipe and all connections are 2 bolt flange.

Ti tip: The latest system has straight titanium tips, includes an H pipe and has slip joints for the back box connection. I have not seen this system in person and am not sure it is even for sale yet.

Chris