This arrived in today for my 96 Z.



I must say, this thing is a nice piece. Well worth the $600 for it. I'm pretty sure it will out flow the stock GM piece. Heck, GM wants around $500 for each cat!!!

I plan on installing it in a few days. I'll get pics of it installed.

 

It will definetely outflow the stock unit, The random tech dual cat y is a nice piece, because it isn't flatened in a few places like most ORY's. I'd get rid of the flowmaster behind it though...That's definetely hurting your setup as far as flow goes.

 

I have a 97 Camaro with SLP shorts and a Random dual cat Y. Made a big differance in flow. I think you will like it. I am FI (383 - D1) so, I recently have blown out the Rt side cat. Replaced it with a straight pipe and now has alot of noise. I did a custom 3 1/2" cat back system with a Spin tech, and, it has alot of resonance. I am back to experimentation with the exhaust system. Now I am making my own parts to quiet it down. I have also installed a 3 1/2" QTP dump for max flow. B.

 

I am having problems with this system.

It looks great but the collector flanges are bigger than the stock manifold gaskets. This is causing me to burn gaskets.....on both sides!!!! The flanges being bigger will not clamp the metal rings of the stock gaskets properly.

I'm not sure what to do about it.....hence my post in this forum about converting to single cats etc....

I have asked Random Tech about this....hope to have a reply tomorrow.

Are you guys, with this system, having problems with burning gaskets?

 

I'm sure I can get a 1/8" to 1/4" bigger diameter gasket for the passengers side...but where in the **** can I get bigger holed gasket for the screwy flange on the drivers side????

 

I have a random Y on a 97 SS/ M6. This is how I solved the gasket problem...

Purchased some collector (copper) gaskets from Summit. 2" in Left and 2 1/2" on Rt.
Also, on left side, used some hi-temp adhesive heat tape on pipe flange, then, took the 2" copper gasket (embossed side up) and, inserted 1/8 steel rivets to retain it on center.
Filed the heads down a bit to clear the copper flange crush.
Works great, and, I just bolt it up there with no placement of the gasket. gasket.
Those stock gaskets will not work (especially with an ATI D1 blower). I call them a bad design.

I hardly ever replace the left side copper gasket, but, be carefull not to dent the embossed flange when handling the cross pipe. If you do, then, just drill out rivets and re-install a new copper collector.
Also, when torquing flange bolts, do them in order, and, take some shim stock (0.005") and probe the flange joint about the total perifory for seal. I only do the Left side since the flange is not a good symetrical clamp load design.

I recently bleu out the Rt cat. Did some intake hard duct work on the blower suction side. Bleu the cat into the Y pipe. Had to take the Y down and cut the cats out, but, the Random Y really makes a big differance.
Just my experience.
B.