BACK-TO-BACK DYNO TEST: 6.4L Hemi Gets Intake, Headers, Camshaft!

Ever wanted to see dyno data between intake, headers, and camshaft on a 6.4L Hemi, all back-to-back? Yeah, we did too! This video covers each of our Naturally Aspirated Staged Packages for 6.4L Hemi explained, installed & tuned, and put to the test back-to-back! Follow along in the shop as we take this 2021 Dodge Challenger R/T Scat Pack from showroom stock, to Stage-1, Stage-2, and Stage-3, with results highlighted throughout. Below are the contents of each Package covered: Stage-1 • JLT Performance Series-II air-intake system • National Speed in-house ECU/PCM unlock (for 2015-2021 models) • SmartAccess cable (for 2018-2021 models) • Optional JLT Performance air-oil separator • Optional MotoRad 180° thermostat Stage-2 • All Stage-1 contents, plus: • Stainless Works Stainless Power 1.875" primary ID long-tube headers • OEM Mopar exhaust manifold gaskets Stage-3 • All Stage-1 & Stage-2 contents, plus: • COMP Cams Stage-2 HRT 273° camshaft • COMP Cams phase limiter • COMP Cams pushrods • COMP Cams Beehive valve springs • COMP Cams steel retainers • COMP Cams locks • COMP Cams spring seats • COMP Cams valve seals • NGK Spark Plugs LZTR6AIX-13 spark plugs • OEM Mopar SRT Hellcat hydraulic valve lifters • OEM Mopar SRT Hellcat engine oil pump • OEM Mopar gaskets & seals • OEM Mopar fasteners • OEM Mopar coolant • Mobil1 0W-40 synthetic engine oil • Lucas Oil Zinc-Plus break-in oil additive • Optional OEM Mopar SRT Hellcat 92mm throttle body • Optional ported OEM intake manifold We want to hear from you! Contact Us: https://nationalspeedinc.com/contact Phone: (910) 332-5901 Connect with National Speed online: Subscribe to our YouTube channel:    / nationalspeedinc   Visit our Website: https://nationalspeedinc.com Like us on Facebook:   / nationalspeed   Follow us on Instagram:   / nationalspeed   00:00 - Intro 00:48 - Stage Breakdown 02:15 - Baseline 02:42 - Stage 1 Install 03:40 - Stage 1 Dyno 04:23 - Stage 2 Install 05:12 - Stage 2 Dyno 05:49 - Stage 3 Install 06:42 - Stage 3 Dyno 07:47 - Outro