Not the same except same in principal. I have a Magnaflow blot together exhaust system, Several things I've done working on the car have been made easier by the un-bolting & bolting of exhaust sections. I like it.

Tubo

My preference when installing an h-pipe under a manual transmission is to put the crossover right behind the transmission tail end.  That way if you are removing the transmission for some reason, you can slide it back far enough to disengage from the bellhousing and lower the front by hand while the h-pipe supports the tail end.  It can be very helpful to have it there.  Once the front of the tranny is on the ground or otherwise under control, then you can slide it forward and pull the tail from its perch atop the h-pipe.

Pablo wrote:

The little bit of time you'll spend welding the flanges on will be well worth it the first time you need to pull the tranny.
This is about the cheapest flanges I've found:  http://www.ebay.com/itm/161370032357?_trksid=p2055119.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT 
I use red Hi-Temp silicone sealer to seal them instead of gaskets - works like a charm.
Good luck

Thanks.  Picked up four today.
 

The h pipe didn't come close to fitting our tri-ys. I thought about trying to weld up flages square enough to get good seal with a gasket,  after cutting to get things lined up correctly,  and decided to go a different way.

Bought a pair of "header buddies". They are  ball connectors that you weld on the end of the h pipe. They bolt up to the header collector 3 bolt flanges and seal with no gasket.  They allow a fair bit of wiggle room  for imprecise cutting and fitting of the h pipe and create a great leakproof seal.

Highly recommend.

Bob

Thanks for the ideas.  I've installed the mufflers and tailpipes I ordered but I've given up on trying to use the H-pipe and intermediate pipes because they're not even close.  Weird that the intermediate pipes have 6 or so small bends along their lengths but are so far off.  Any way, I'm going to have these parts made by a muffler shop.  I can't take my car over there so I'm using 2" PVC pipe and 22.5 and 45 degree fittings to mock up the intermediate pipes so I can tuck them up next to the driveshaft.  My plan is to get those made and installed and then weld in the H-pipe near the end of the T-5 tailshaft.  I want to be able to easly remove them so I'm going to weld header flanges on the front of the mufflers.  I'm going to do the same to the ends of the intermediate pipes, but leave maybe 3/4" to slide into the muffler.  I'll post some photos when I'm done.

Other than "stabilizing" the entire exhaust system......H/X pipes do  little for street power. It does change the sound  and maybe reduce the probability of droning...but power boost?!??..........Not so much.
IF you have a nice lopey cam(if you go for that stuff!) it will mask it or at least the music it makes.
I have the X pipe and would do without it IF I ever change the exhaust system.
Maybe you should too!??!
6s6

I have used a rigid cross brace between the pipes for the reason Steve mentioned instead of a X or H pipe. One was just a piece of angle iron and a couple of muffler clamps. The power gain of the X or H is more noticeable at some points in the power band. Not always at peak power. Road racers may get more advantage than drag racers. Most I have tested gave a boost in power at such a low rev that is was mostly useless for me. They do destroy that nice LOUD crisp rumble.

Terry, we need a sound clip of this arrangement!