[alfa] Re: Aftermarket Cats...

[George Graves <gmgraves@xxxxxxxxxxx>]

Don't know how true this is, but I've heard from several knowledgeable 
individuals that Alfa OEM cats have a lot more platinum in them than do 
aftermarket cats. That means that they should last several times longer 
than the aftermarket variety. If so, the cheaper non-Alfa units would 
simply not be the bargain that their slightly lesser price would have 
one believe that they are.


George Graves
'86 GTV-6


On Jan 26, 2004, at 8:57 PM, alfa-digest wrote:


> Date: Mon, 26 Jan 2004 14:04:21 -0800
> From: Jon Pike <jhpike@domain.elided>
> Subject: [alfa] Aftermarket Cats...
>
> Not the furry kind, either...
>
> I was wondering if there is any great difference between the various
> cats avalable from the various vendors..  Since I'm running now (YES!!!
> #1119 is ALIVE again!!!) and need to get smogged for re registration,
> and I have the original 27 yr old cat converter..  I would think I'm
> buying one.
>
> So, I was wanting to hear if there are ones to get or avoid..  probably
> what's important is the ground clearance, are they better or worse than
> the original "hatbox:" one of the 70's, which is kinda low to start
> with.  Or is there lower quality problems and such?
>
> Lastly but probaly not leastly, is how do they sound?  I know they are
> more free flowing,  which should improve things,  and do any of their
> natural resonance work exceptionally well with the Alfa exhaust note?
>
> And here's a question for Eric,  is it possible to run a 70's Spica
> motor with a cat and WITHOUT the air injection pump?  Mine is a noisy,
> nasty mess.. it and it's pulley makes such noise I thought I had 
> bearing
> problems in my newly rebuilt engine..  and I HATE that ugly, always in
> the way bracket up front!!
>
> Thanks!!
>
> Jon
> 77 Spider (living and breating again!!)
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