Items such as dual exhaust and super stock wheels had to be ordered 'a la-carte'.

The base model has the same look, although without dress-up items like a rear spoiler and dual exhaust.

Power seats and dual exhaust were made standard across the line.

The 350 was rerated from 250 to 160 bhp (175 with dual exhaust) at 4,400.

Midyear also brought a more potent 283 with dual exhausts and 220 horsepower.

The 501 model is identified visually by a center skirt horn and dual exhausts.

Station wagons that used the 454 now featured dual exhaust as well.

And the throaty rumble of the dual exhausts make it seem even faster.

The previously round dual exhaust outlets were made larger and rectangular in shape.

P71s can also be identified by the dual exhaust and an analog 140 mph speedometer.