Straight Exhaust Vs. H-Pipe Vs. X-Pipe! [Engine Masters - Episode 22]

This episode of Engine Masters delivers the goods many viewers have asked for as we test the power of straight dual exhaust with no crossover pipe versus using an H-pipe versus an X-pipe.

Will the old bench-racing stories come true, or is it all hocus-pocus? We find out using a basic 5.3L GM LS3 engine then precisely spell out the effect these exhaust-system modifications have on horsepower and torque.