Re: 4.7 exhaust questions

From: Paul Bullerman (hemikota@home.com)
Date: Wed Apr 25 2001 - 21:31:40 EDT


mine was made in 10/99 and I have two O2 sensors in the pre-cats and one
upstream of the third. I too would like to hollow out the main cat, but I
think I want to keep that 80k exhaust warranty. Those cats look expensive!
Even if an aftermarket version became available, still mucho dinero...
Boog

----- Original Message -----
From: <SEMIHEMI01@aol.com>
To: <dakota-truck@buffnet.net>
Sent: Wednesday, April 25, 2001 4:42 AM
Subject: Re: DML: 4.7 exhaust questions

> Bill,
> I I remember right,There are two O2 sensors are just upstream of the 2
> precats, On each side of the Y pipe and 1 downstream on the 2001. This is
> one reason I would not screw with the Precats. A hi-flo cat at the end of
the
> Y pipe might be to an advantage. Bill
>
> SEMIHEMI01@AOL.COM (Bill C.) 2001 QC, 4.7L, KENNE BELL SC'ed, 5spd.
> 3.55 LSD, Bored & polished TB, 10w-30 MOBIL 1, GIBSON 3" Single <A
> HREF="http://hometown.aol.com/semihemi01/">"THE DAK"</A>
>



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