Yes, route together, you can use slightly smaller diameter pipe (the area of
each should at least total the area of the original pipe). Your muffler man,
as long as he knows area equals radius squared times pi (3.14), can do the
figuring (he also has charts). Find another shop if he doesn't have a clue.
Your engine will run better, run cooler, more efficient (higher MPG), more
environmentally friendly, produce more power and sound great (a lot of the
sound depends on the muffler selected).
Good luck, let me know,
Dave Rex, 66 year old Professional Engineer
1993 Chrysler Imperial 3.8L V6
1997 Dodge Dakota 5.2L or 318 cu. in. V8, JACOBS ignation, 18 MPG
1992 Dodge Spirit R/T 2.2L turbocharged, intercooler, 16 valve head Lotus
designed for Chrysler, 224 hp
1991 Dodge Spirit R/T ditto, highest hp/cu. in. ratio, (1.66) of any Mopar
engine. 28 MPG @ 80 mph
----- Original Message -----
From: <chrycordoba@xxxxxxxxxxxxxx>
To: <mailing-list@xxxxxxxxxxxxxxxx>
Sent: Thursday, July 25, 2002 12:25 PM
Subject: IML: dual exhausts in '81-'83
> Has anyone out there converted their early '80s Imperial (or Cordoba-like
> mine-, Fifth Avenue, etc.) to dual exhausts? While on vacation, I'm
having
> some exhaust work done to my Cordoba and have just learned that the Y-pipe
and
> forward catalytic convertors are shot. None are available anymore, and my
> mechanic has suggested converting to dual exhausts with a catalytic
convertor
> on each, and then two mufflers, obviously. Is this feasible on these
cars? I
> also suggested fashioning a new y-pipe and omitting the front catalytic
> convertors.
>
> My concern is what unintended consequences might develop by having two
> tailpipes. I don't think there are the cavities in the floor pan for two
rear
> catalytic convertors and mufflers, nor room for an additional tailpipe on
the
> drivers side. How about routing two on the passenger side?
>
> Any assistance would be greatly appreciated as soon as possible. Thanks
so
> much for y'all's guidance.
>
> Neal Herman
> 1959 Imperial Crown
> 1972 Buick Riviera
> 1983 Chrysler Cordoba
>
>
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