Manifolds vs Headers: Which is Better?

Shayne puts factory-style cast manifolds head-to-head with shorty headers to see which performs better. We walk through the common misconceptions around shorty headers, compare real-world construction and durability, and then put both setups to the test on our SuperFlow 1020 flow bench. 🔧 In This Video: 0:00 – Intro & Manifold Overview 0:32 – What About Shorty Headers? 1:53 – Cast vs Tubular: Heat, Cracking & Welds 3:32 – Port Matching & Flow 5:02 – Flow Bench Testing 7:23 – Real-World Results 9:51 – Final Verdict 🛒 Shop the BD Manifolds here: https://us.bddiesel.com/collections/s... 📞 Got questions? Visit https://www.bddiesel.com or leave a comment below! 👍 Like this video? Subscribe for more tech breakdowns, testing, and performance tips. Want MORE Content? Follow us on our Socials! Facebook:   / bd.performancemanufacturing   Instagram:   / bd_performancemanufacturing   TikTok:   / bddieselperformance   #BDDiesel #LSManifold #ShortyHeader #ExhaustComparison #SilveradoPerformance #GMCPerformance #FlowBenchTest #ExhaustManifolds