What is louder a ford lightning or mustang cobra?

Generally, a Ford Lightning (especially the supercharged versions) will be louder than a Mustang Cobra, particularly at higher RPMs. The Lightning's larger engine displacement and often aftermarket exhaust modifications contribute to a more pronounced exhaust note. However, the specific loudness of either vehicle depends heavily on the individual modifications made to the exhaust system. A stock Cobra might be quieter than a heavily modified Lightning, and vice-versa.