Need a little help

[ridnlow]

Ok guys,
Almost got my truck up and running but I cant figure out what do with the exhaust.. Its got the stock manifolds on it and I cant find the flanges that bolt up to the manifold (y-pipe) anywhere.. I think on the ls1 the cat bolted directly to the manifold.. I dont think you can buy used cats at a junkyard.. I dont want spend a lot of money on the S & P headers.. Any ideas??

[RedHeartbeat]

Find you a shop that specializes in F-body performance. They've almost always got a y-pipe or two laying around from a header install job. I've picked up two of them for free, complete with cats, from one of my local shops.

[ridnlow]

<div class='quotetop'>QUOTE(RedHeartbeat &#064; Mar 9 2007, 11&#58;56 AM) [snapback]85812[/snapback]</div>

Find you a shop that specializes in F-body performance. They&#39;ve almost always got a y-pipe or two laying around from a header install job. I&#39;ve picked up two of them for free, complete with cats, from one of my local shops.
[/b]

Awesome, thanks for the help&#33;

[project92]

The flanges you need are part of the pre-cats. The Y-pipe bolts up to the aft side of the pre-cats, there is a somewhat male/female flange set-up at the aft connection. My swap (doner) came with the pre-cats and now with "Reds" answer (thank you) I too will look to my local muff shop for the Y-pipe. It will be a temporary set-up for now.

[airdeano]

check your local dealership.
warrenty cat replacements come with new collectors attached and the
older ones are scrapped... see if theyd section them from the
converters... thats where i got mine...

airdeano

[ridnlow]

We just ended up buying gaskets and making the flanges.. truck runs STRONG.. still got some work (tuning) to do though..