Engine Masters: Season 5, Episode 7

5 - 7: Single vs. Dual Exhaust

The guys determine whether a dual 2.5-inch or a single 3.0-inch exhaust system has more power on this episode of Engine Masters, presented by AMSOIL. They swap pipes on a run-of-the mill 351 Ford, then they test turbo versus straight-through mufflers and Y-pipe versus a 90-degree merge.