Understanding Airflow and Sound Generation

unified so to speak so my sound prediction between number one and two this will sound much better this will sound smoother that will sound more aggressive like a you know clumpy hot rod sound you get more i think you'll get more pops and bangs and bubbles out of these ones than those ones so when you're trying to imagine the sound path coming through these things think about it like cars merging onto a highway you got every cylinders firing and they're each producing a a pulse of you know the explosion from that individual cylinders going through the header and they're all meeting up and why you get that that signature v8 you know popping ripping noise the typical cross plane domestic v8 ripping sound whatever you want to call it it's like you know it cracks it's got it's not smooth that is because you have exhaust pulses banging into each other the whole way through the tailpipes and when they exit out of the atmosphere they are disorganized they're colliding they're bouncing off each other and it just makes a big old racket you know exactly what i'm talking about if you hear some freaking pickup truck that has what they call true dual exhaust and it just sounds real slappy and awful that's because there is no harmonic balance of pulse pressure between the cylinder banks and that's where this one number four comes into play yes you can see that it comes out both sides of the car where all these ones just stick out one side on here you have your pulses coming through and there's a little bit of an equalization of pressure between the two but not a ton over here in this section the x-pipe section they are being forced to bleed pressure off to each side these ones were used on super speedways mostly in the early in the 90s some people use them other places but they're pretty much for restricted plate usage um up again up until 2007. this one came from a morgan mcclure super speedway car from 2001 and two that's why we chose number four for it this is the real deal actually unrelated this is the same exact thing but brand new so you can see kind of what they look like before they're made but if you want to know how an x-pipe works there's a whole different video on the channel i'll link it right here that explains the x-pipe better if you think about cars merging on an on-ramp whenever two ramps come together and there's a lot of space between the cars and they just kind of flow together like a zipper that's kind of what the x-pipe is doing or trying to do…