Engine Masters: Season 6, Episode 4 - ProjectFreeTV

6 - 4: Mandrel- v. Crunch-Bent Exhaust

The guys find out if mandrel-bent exhaust pipes really make more power over the crimped and crunched pipes the local shop bends up. They test them with mufflers, without mufflers, with turbo mufflers and more on Engine Masters, presented by AMSOIL.