What's the BEST SOUNDING stock Mustang?

Cobra R for a technically "stock" car.

Bullitt otherwise, they had a little throatier of an exhaust from the factory. And anything non-96-98... they had six catalytic converters on their mid pipe. Talk about choked down.
 
'68 428CJ or '70 BOSS 302 :shrug: :D

other than that the 4.6's all sound about the same, 4Vs maybe a little 'racier' than 2Vs...and personally from the outside I think the 4.6 sounds a lot better than the new 5.0's; they changed the firing order :(

...on the inside of the cars the 5.0's are pretty sweet, but that's because of those sound tubes things or whatever that pipe tweaked engine sounds into the cabin :rolleyes: