RAM 1500 Muffler Delete (5.7 HEMI) POWER LOSS + Backpressure Myth | 1 Year Review

The RAM 1500 Muffler delete for the loud 5.7 HEMI may result in low end power and torque loss. Exhaust back pressure is a myth, however changing exhaust velocity and cylinder scavenging from installing the Muffler Delete pipe may result in some real low end power loss.
Sound wise this option is as good as it gets if you are looking for a loud, cheap, deep snarly V8 sound. Although I don't have a decent sound clip, you almost have to hear the Hemi in person with the muffler delete option on to really understand how awesome it sounds. Driving around town you get all kind of looks because when you step on the throttle its a crazy aggressive snappy sound. but when just cruising at city speeds the truck is decently quiet and won't make too much of scene.
DRONE. At highway speeds this muffler delete pipe has a nasty drone. right around 110-120km/h the drone is pretty bad. so if you are driving a lot of highway km/h I would strongly caution you on this option.
COUNTRY DRIVING. Surprisingly this muffler delete is actually really quiet around 90-95km/h. So if you live in the country and don't drive with a lead foot you are going to enjoy this option because when just cruising around under 100km/h it's pretty quiet. But as soon as you drop a gear and get to about 2500 RPM, look out. Folks will hear you in the next county.
POWER LOSS. Yes unfortunately it looks like this muffler delete pipe just thrown into the mix will rob you of some low end power. I briefly go into what cylinder scavenging and exhaust velocity are and why they are pretty important for an engine to run at optimum power and efficiency. When you open up the exhaust system and make it less restrictive you are effecting the cylinder scavenging and essentially slightly throwing off the air fuel mixture that the engine is tuned and is expecting to have based upon factory scavenging characteristics.
Long story short. Backpressure is a myth but the conclusion is the same having a properly tuned exhaust system is best way to run a modern day engine. How much power is actually lost is up for debate. I couldn't come across any dyno number specifically for the RAM but after reading the forms it seems like a lot of guys were complaining about low end power loss which would theoretically make sense.
Solution is either you get the 5.7 HEMI tuned for a muffler delete or you dig into the wallet and buy a properly engineered and tuned exhaust system for the HEMI.
Hope you guys liked the video!