Name: Header Science: Step vs. Merge
Released: 2023-11-17

There's a hidden magic in the world of exhaust systems that can either enhance or diminish power. The team delves into the advantages of stepped headers, which feature primaries that increase in diameter, and merge collectors that intentionally restrict flow at the collector. They compare these to traditional, straightforward headers. Do the claims about frequency tuning from these stepped designs and the velocity-boosting merges actually impact engine performance? Without a doubt!

Show Engine Masters

Episode S08E26

Air Date Nov 17, 2023

Season 8 Episodes

S08E01 Air-to-Air Intercooler, Now With CO2!! S08E02 High vs. Low Injectors S08E03 Tank Testing for Air-to-Water Intercoolers S08E04 The Throttle-Body Throwdown! S08E05 Bellmouth Power S08E06 Sequential vs. Batch Fire EFI S08E07 One Cam, Three Ways S08E08 Straight Talk About Spark Plugs S08E09 Exhaust Tech: Header Primary Length S08E10 Cams: How Small Is Too Small? S08E11 When Headers Don't Matter S08E12 Big-Block Chevy Dual Plane Shootout! S08E13 The Weight of Oil S08E14 Keep Your Fuel Cool!! S08E15 The Surprising Findings of the Air Filter Shootout S08E16 Proper Pushrods & Sufficient Springs S08E17 The Nitrous Plate Debate S08E18 BBF Intake Manifold Comparison S08E19 Heat Management S08E20 A Study in O2 Sensors and AFR Readings S08E21 Controlling the Hit S08E22 BIG CFM Shootout S08E23 Sniper 2 the Rescue S08E24 Port v Plate Nitrous Injection S08E25 The Exhaust Duration Equation S08E26 Header Science: Step vs. Merge

Header Science: Step vs. Merge (S08E26)

Season 8 Episodes