So I just wanted to chime in on this one a little bit. Believe it or not, I have been asked this question many times over the past 9 years ever since we started making exhaust systems for the 350Z/G35 Coupe. Here is why we do not use "Flex Joints" within our 2.5" cat back exhaust system. Please try and keep an open mind when reading my reasons because some of them are facts a few are opinions and some of them are based off of experiences.

-Flex joints are designed to give you more adjustability in the exhaust fitment, yes. However they are there to soak up in consistency in slight alignment issues. If an exhaust system is not produced to the exact spec of what it is bolting up to, the flex joint will allow you to fudge it and make it fit. This is not the correct way to do things. Sure it will take the bind off of the exhaust system and in turn shift the bind into the flex joint.

-In the case of this specific car the first rubber hangers that hold the exhaust up are located right in front of the rear sway bar. That is physically far away from either the transmission brace on the catalytic converters or the head of the engine. Now if you put flex joints directly in the front of the exhaust system everything behind them will (weigh) on them. This puts a lot of stress on them and after time they will deteriorate and eventually sag or worse yet, blow out and create an exhaust leak.

-They will decrease ground clearance.

-They add material cost and production time to the build process.

-The list goes on and on but in the grand scheme of things, your engine sits in rubber motor mounts. Your exhaust system sits in rubber hangers. Your exhaust system is indirectly bolted to your engine through your cats and manifolds. Nothing is solid mounted to the car and as the engine torques, the exhaust torques with it.

Thats all I have for now. Thank you for your time.

Tony

Great info Tony....:tup:

Thanks for the info. Tony...

What number are we on today, Blake?

^
Same question as I want to know when to expect my order. Updating us with the latest shipped order # will be great.

Tony just a little reminder, I e-mailed you my order change like you requested, just waiting on the new invoice....Thanks!

I am working on getting this info for you guys. Give me a day or two and I will update this thread!

I will make sure we don't forget to get your invoice ASAP! :tup:

Does anyone have a photo of the FI exhaust system, installed, from directly below the rear differential?

I'm trying to see how occluded the differential is from below while the system is installed.

Thanks!

It is chilly out so i just snapped a few, i don't know if this helps. Nothing touches it's just the angle cause it was hard to get under there.

http://i1109.photobucket.com/albums/...psd008ad20.jpg

http://i1109.photobucket.com/albums/...ps24f73e3d.jpg

http://i1109.photobucket.com/albums/...ps0a903368.jpg

http://i1109.photobucket.com/albums/...ps0b3472ee.jpg

In your estimation, can you get a jack between those pipes to lift off the diff?

That's my preferred lifting point in the rear.

EDIT: looks like you jack there as well, so I'm guessing it's fine?

Yeah i do use the diff, you should be fine. :tup:

So shiny...

http://i1109.photobucket.com/albums/...ps820edc70.jpg

Looks great!

just uncovered mine monday night and my exhaust was all shiny too :tup:

forgot it polished them before i put the monster away.

I need to polish mine to get rid of the yellow-ish color in the tips.