We have a '56 Olds with dual exhaust and we want to change the mufflers to get more rumble. Do we have to the increase the size of the exhaust pipe. Also would anyone know where we could by a diecast car of this model.

 

You should not have to increase exhaust pipe size to do what you want. Back in the day, the muffler of choice for the "cool sound" for these rides was the Smitty Glasspack.

 

Thanks Dave. I appreciate your unput.

 

Kenny,

No problem. More than glad to add my 2 cents.

I would suggest you check out the Classic Oldsmobile Forum, as there are a whole bunch of 56 Olds owners and fans there who could be of help to you.