J2 Engineering Dual 3.5" Muffler Tip Exhaust Catback System For Infiniti G37 4DR
It looks like it's that cross piece that's more off than the actual piping. For the hassle of returning and possibly just ending up w/ the exact same piece or similar issue I'd just mount it up. Just keep the bolts lightly snugged just to be sure it's going to fit to your satisfaction, then if it does tighten everything up and let all of us "inquiring minds" know what that set sounds like. You've lead us too far to stop now 

That looks hella nice to me. For what more half the price of a name brand system fitment is good. I've been eyeing these exhausts for the last year or so but am too damn cheap. Wife bitches too much when I waste money on car parts. I used to have a real problem. lol
So here's the moment everyone has been waiting for...
Exhaust is installed and I have a few miles on it. Initial thoughts? It's not bad at all!
The install was painless. Everything lined up (against all odds) flawlessly. No joke. Better fitment than the Top Speed. It lines up beautifully, with no tweaking whatsoever. None at all. The tips are a bit smaller than the TS, which is a bummer, but they look good and center nicely.
The only issue was that the cross brace couldn't go back on, as the junction between the y section with the resonators & the midpipe fell exactly at that location and would rest on the brace if I tried to put it on. I left it off for now. I might try to get something fabricated to replace it... we'll see.
And the sound? It's louder than the TS by a good bit, and doesn't peter out at the top of the rev range like the TS. It sounds more "burbly" than the TS, and has a higher tone. It reminds me of the "Subaru sound" mixed with G37. I like it, but it is very different than the TS. I do wish it was a touch deeper, though.
I'm interested how the sound will change as I get more miles on the car.
I have a set of Berk HFCs ready to put on, but I'm wondering if it would get super raspy with this CBE. Time will tell, I guess.
Here are some photos and a video:
Installed:

Underneath:

You can see where the brace would go, and how it would sit right on that junction. No good.



Exhaust is installed and I have a few miles on it. Initial thoughts? It's not bad at all!

The install was painless. Everything lined up (against all odds) flawlessly. No joke. Better fitment than the Top Speed. It lines up beautifully, with no tweaking whatsoever. None at all. The tips are a bit smaller than the TS, which is a bummer, but they look good and center nicely.
The only issue was that the cross brace couldn't go back on, as the junction between the y section with the resonators & the midpipe fell exactly at that location and would rest on the brace if I tried to put it on. I left it off for now. I might try to get something fabricated to replace it... we'll see.
And the sound? It's louder than the TS by a good bit, and doesn't peter out at the top of the rev range like the TS. It sounds more "burbly" than the TS, and has a higher tone. It reminds me of the "Subaru sound" mixed with G37. I like it, but it is very different than the TS. I do wish it was a touch deeper, though.
I'm interested how the sound will change as I get more miles on the car.
I have a set of Berk HFCs ready to put on, but I'm wondering if it would get super raspy with this CBE. Time will tell, I guess.
Here are some photos and a video:
Installed:

Underneath:

You can see where the brace would go, and how it would sit right on that junction. No good.



Last edited by lobuzz311; Feb 25, 2016 at 02:52 PM.
Pics aren't showing up, just a circle w/ a minus sign in the middle 
The sound clip sounds good, and the tips look alright, just takes some getting used to after having the larger ones. Look forward to more pics, and glad you have positive feedback w/ good fit & finish. Seems like a very good option, even better, than the TopSpeed. And nice to now about the full rpm sound. Going by what you know w/ the factory Y pipe and now this new Y-H hybrid pipe, do you think this would also clear the transfer case for AWD models? Would be nice to have another option for the X-ers.

The sound clip sounds good, and the tips look alright, just takes some getting used to after having the larger ones. Look forward to more pics, and glad you have positive feedback w/ good fit & finish. Seems like a very good option, even better, than the TopSpeed. And nice to now about the full rpm sound. Going by what you know w/ the factory Y pipe and now this new Y-H hybrid pipe, do you think this would also clear the transfer case for AWD models? Would be nice to have another option for the X-ers.
Oops. Just started using Google Photos. Thought I could directly link. Guess not. Fixed with imgur links.
Can't imagine it would. Not sure where the xfer case is, but I'm guessing within the Y of the Y-pipe? If so, not a chance. The J2 Y is much shorter to make room for those massive resonators.
Can't imagine it would. Not sure where the xfer case is, but I'm guessing within the Y of the Y-pipe? If so, not a chance. The J2 Y is much shorter to make room for those massive resonators.
Oops. Just started using Google Photos. Thought I could directly link. Guess not. Fixed with imgur links.
Can't imagine it would. Not sure where the xfer case is, but I'm guessing within the Y of the Y-pipe? If so, not a chance. The J2 Y is much shorter to make room for those massive resonators.
Can't imagine it would. Not sure where the xfer case is, but I'm guessing within the Y of the Y-pipe? If so, not a chance. The J2 Y is much shorter to make room for those massive resonators.
Looks to be a great fit overall, and agree about that lack of room up front for an AWD application.Thanks for being the test mule, looks like another option, and a good one for those wanting a true dual exhaust for the price of some axle back sets.
Update this as time goes on, would be a helpful addition, and if you want to cut & paste the pic/review post you made and start a thread in the review folder, that would be
The fit and finish looks surprisingly good, especially around the mufflers, which is where I've seen some of the TSP models diminish over time. Do you think the brace is actually needed? The resonators are full length, which is why the sound is relatively docile. Shorter resonators will make the exhaust louder, as will larger diameter piping (which also introduces drone in some instances). Nice write-up. Question. Did the packaging come with any form of support/contact information? Since they are in Socal, I tried to look these guys up once and talk to them and hit a dead end.
The resonators are full length, which is why the sound is relatively docile. Shorter resonators will make the exhaust louder, as will larger diameter piping (which also introduces drone in some instances). Nice write-up. Question. Did the packaging come with any form of support/contact information? Since they are in Socal, I tried to look these guys up once and talk to them and hit a dead end.
DNA Motoring search
Also found it under the j2race website:
Speed Daddy
801 S. Sentous St.
City of Industry, CA 91748
Phone: (626) 965-8898
E-mail: sales@speed-daddy.com
Web: Speed Daddy - Headers, Catback Exhausts, Mufflers, Turbochargers, Lowering Springs, Coilovers, Light Bulbs, HID Kits, Ballasts, LED
801 S. Sentous St.
City of Industry, CA 91748
Phone: (626) 965-8898
E-mail: sales@speed-daddy.com
Web: Speed Daddy - Headers, Catback Exhausts, Mufflers, Turbochargers, Lowering Springs, Coilovers, Light Bulbs, HID Kits, Ballasts, LED
Also found it under the j2race website:
Speed Daddy
801 S. Sentous St.
City of Industry, CA 91748
Phone: (626) 965-8898
E-mail: sales@speed-daddy.com
Web: Speed Daddy - Headers, Catback Exhausts, Mufflers, Turbochargers, Lowering Springs, Coilovers, Light Bulbs, HID Kits, Ballasts, LED
801 S. Sentous St.
City of Industry, CA 91748
Phone: (626) 965-8898
E-mail: sales@speed-daddy.com
Web: Speed Daddy - Headers, Catback Exhausts, Mufflers, Turbochargers, Lowering Springs, Coilovers, Light Bulbs, HID Kits, Ballasts, LED
Worth a shot, I guess.
And I'll post a thread in the review forum when my new cam comes in next week and I have time to get some extra/ better footage.







