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Exhaust questions (paging peter!)
- Subject: Exhaust questions (paging peter!)
- From: lord_verminaard at yahoo.com (Brendan Doyle)
- Date: Wed Aug 1 12:46:33 2007
Punch the cat out and see if you can tune MS to pass emissions. ;) Don't laugh too much, I've seen an older Camaro with an injected 305 pass the basic sniffer test (which is what most states use for old cars) without a cat at all. He did it with some combination of higher fuel pressure, lean running and some sort of additives.
Screw the downpipe and manifold, get some nice headers. :) My Autotech was picked up used for $180 shipped, and it was in nice shape.
Brendan
----- Original Message ----
From: Timbo <timjmcconnell@xxxxxxxxx>
To: Scirocco list <Scirocco-l@xxxxxxxxxxxx>
Sent: Wednesday, August 1, 2007 12:30:28 PM
Subject: Exhaust questions (paging peter!)
I'm pretty I need a new cat, because I've been running my car really
rich for a while (better for engine, worse for the cat!).
The exhaust is going to be a 2" aluminized TT with a resonator, and a
Dynomax. (Got it used, I would have bought a stainless, but hey - this
was cheap!)
Should I get some sort of High-flow cat, or stock? What does the high
flow cat come off of, or where can I get a new one. I need reliability
and the ability to pass emissions first, but if there's no downside to
going high-flow besides cost - I might as well do it.
And, is the TT dual downpipe worth it? I have a stock rabbit dual
manifold, downpipe, and an almost new accordian flexy section. I even
have both brackets!
--Timbo
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