Has anyone out there used a '60 Cadillac dual exhaust on a '64? I know there may be minor mods needed to make it go.  Kanter listed a dual exhaust in their catalog for 1964 but when it arrived, it was a single system. I called them and they said, "oops the '64 did not come with a factory dual system."  I said, "I know that which is why I purchased the dual exhaust from you figuring you had done something special." Long story short and one refund later, does anyone make these things?  We have one muffler shop in town that could do custom bends and their reputation is less than stellar so I would just assume do this on my own.  Thanks!

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The discussion use to come up a lot, especially on former 63/64 Cadillac Websites, and the big issue for adding duals on the 63/64 is the gas tank wedged over to one side, requiring the pipe to awkwardly drop below the frame. I put duals on a 64 SDV that way and ran out the back and really hated it. Painted the pipes with exhaust black to make it look not so gaudy from the side. On my 64 CDV I had duals for several years and simply had the exhaust stop just behind the rear axle. You can see and hear it running on YouTube at https://youtu.be/YlpceVM8Xc8. I had Flowmasters and it was LOUD! and not what I wanted with this car and went back with the factory single exhaust, opting for the Stainless Upgrade and sourced from Classic Exhaust out of Ohio. There were some fitment mods that needed to be made as it wasn't a perfect fit, but pretty pleased... it is nice and quite now. This does  not answer your question, but thought I would share. I am not familiar with the 60 undercarriage or exhaust setup so perhaps someone else can chime in that is in the know!

Thanks Jason. I saw that video of your duals and thought it looked pretty cool.  I probably have the same dual Flowmaster set up you had and yes it is LOUD!!  That is why I was looking for something a little more stock.  I know Cadillac used the same basic X frame from '57-'64 and '60 was the last year the dual exhaust was officially offered.  Guys have successfully done the conversion on plenty of '61s and '62s but I was hoping there was a brave soul out there that tried it on our cars. 

The holes and fittings for brackets are available on right side. The only real obstacle is the gas tank? If fitting a smaller gas tank, like one of the new replacement types? Would that solve it?

It may?  Since the tank may be shot I may have to go that route and see.

Michael

Brand new smaller gas tanks are avilable For our cars
The duals out the back bumper do look really cool and hot all at the same time
They got the look !

I would think the best was to handle duals on our cars with a stock fuel tank would be to have them exit just in front of the rear wheels on both sides
Do not have the exhaust ending under the car as this could be dangeous to your health especially when the car is moving slow or stopped ( parade style )
Carbon monoxide is the sillent Killer !!
Can give you headaces and even have you black out
Holes in some of the floors of our cars adds to that issue

It might be best to have a shop that bends exhaust pipe design your dual exhaust system For you
They should provide there correct hangers to have the system rattle fee

Last but not least these year car were designed for a single exhaust system that was quiet
The fact that our engines do not turn high RPMS ( tack out at 4,600 RPMS ) makes duals less important for performance

Having owned a few 60's Cadillacs i now do not use the resonator at the very back of the system as it is the first part tomrust out
I use a straight pipe in that location

If you run your car for a half hour every time you start the car your exhaust will last a very long time
My stock exhaust is going on 30 years and when checked still solid

Enjoy

Well said, thanks Tony!

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