ORY for stock manifolds

**SpeedingLS1** · 05-15-2010, 10:01 AM

Does anyone know of any off-road Y-pipes that hook up to the stock exhaust manifolds? I saw Mac has one that works for the early LS1s, but I have an '02 so if I got that one I guess I'd have to do some tweaking to get it to work.

If need be, I could probably get a custom ORY made, just seeing if there are any off-the-shelf options.

**Hi-Po** · 05-15-2010, 10:33 AM

I would have to check into that, but just to offer up some advice... Dont buy a ORY for your stock manifolds. You will gain next to nothing, and it will not bolt up to headers if you choose to install them later down the road.

**SpeedingLS1** · 05-15-2010, 10:53 AM

Yeah, the only real reason I want an ORY now is that my stock cats are clogged up, so I just wanted something to get rid of them for the time being. And if I decided to do long-tubes down the road, I'll probably just pull the Y-pipe and go with a true-duel set-up.

**dennis ss** · 05-15-2010, 11:10 AM

Originally Posted by SpeedingLS1

Yeah, the only real reason I want an ORY now is that my stock cats are clogged up, so I just wanted something to get rid of them for the time being. And if I decided to do long-tubes down the road, I'll probably just pull the Y-pipe and go with a true-duel set-up.

I had an off road y built and had my cats deleted when I put on a muffler. I have my stock manifolds on and I noticed a big difference, especially once I had it tuned.

**Firebirdjones** · 05-15-2010, 01:11 PM

SLP also sold one if I remember correctly. It's been I few years but I think thats the one I used for a while on my 02.
I had warranty replace both cats on the car, then I took them off and boxed them up

I bought a used set of cats just to gut. Thought I would experiment at the track. The car didin't run any better so I went with the off road Y-pipe setup thinking maybe since the factory Y was smashed I'd see a difference.
The car still ran the same et and mph

So my advice would be just as Hipo said. Either bite the bullet and go with the long tube headers and off road Y now,,,,or if money is that tight, just pull off your cats and gut them, then reinstall them for the time being.