How did your Dodge/Shelby sound? I have two Dodge Spirit R/T's, 1992 & 1991 with Turbo III engine, 2.2L or 135 cu. in., dohc, 224hp, 1.66 hp/cu. in. ratio (highest of any Chrysler engine, haven't checked the new Hemi 5.7L in 2003 Dodge Ram Heavy Duty, yet) 141 mph, 5.9 sec. 0 - 60 mph and 28 MPG @ 80 mph. Dave Rex, P.E., 66 year old ----- Original Message ----- From: "Paul A. Feeney" <paFeeney@xxxxxxxx> To: <mailing-list@xxxxxxxxxxxxxxxx> Sent: Thursday, July 25, 2002 12:59 PM Subject: Re: IML: dual exhausts in '81-'83 > Neal, > > How much noise do you want to hear? Imperial owners love to keep their cars > quiet, but on other vehicles I own I have converted from single exhaust with > cats & muffler to dual with dual cats & NO MUFFLERS. The cats keep it fairly > quiet except at full throttle where it gets a little bit louder. With a carb > (non-EFI like the Imp's) you shouldn't have any adverse effects. > > Just a thought. I did it on my 79 Trans Am, 88 Dodge/Shelby CSX and both > worked out great. (CSX was a single exhaust, but still lost the cat). > > Paul A. Feeney > > 68 Crown Coupe > 82 IMP EFI > ----- Original Message ----- > From: <chrycordoba@xxxxxxxxxxxxxx> > To: <mailing-list@xxxxxxxxxxxxxxxx> > Sent: Thursday, July 25, 2002 9:25 AM > 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 > > > >