I was told Longtubes will make my exhaust QUIETER.

Craig Mack said:

I was on the corral talking about exhaust combos, and the topic of Longtubes got brought up. Two people with longtubes said it made their exhausts quieter and more mellow at idle and cruising....WTF? One of my friends has a '96 Impala SS with a flowmaster catback, and when he added longtubes, it made a NOTICEABLE difference. It was not only louder at idle and when revved, but it had more SNARE to it...it sounded meaner and more p!ssed off.

It doesn't make sense how a long tubular header that flows gases much more efficiently and faster would be QUIETER than the choking/restrictive stock manifolds. I have a UPR o/r X and bassani catback, and while it has a great tone and is loud, I want it noticeably louder, so I was going to get some Longtubes for xmas, but am reconsidering after hearing this, although it doesn't make sense to me.

I was hoping to gain several db's and add more bark to my exhaust with some LT's, and logically it seems like they would. Someone please help me out here.

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Craig Mack said:

actually i think our upstrairs computer transfers sound, some kid found a program that makes it work, so I may have one soon for you to jizz yourself.

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Craig Mack said:

Dude, I just got back from looking at apartments...some nice Japanese guy walking his dog purposely changed paths to walk over to my driveway and tell me how nice my car sounded. He has a TT 300zx that runs 12's and he was like "bro your cobra sounds REALLY REALLY nice, I mean it sounds really mean"...I was really surprised and was like thanks man.

In fact, the first day I even got my bassani catback,before it was even broken in (it gets louder and a lot edgier btw) I went over to my friends house, and revved, and some middle aged "enthusiast" came outside and told me how amazing it sounded.

That and the fact I gained major mph from switching to the bassani is the reason I can't switch it out...it's too good of a muffler. I just want it in your face loud at idle and low cruising. The thing about the bassani is its audible, but tame at these instances, but gets super loud when you mash the throttle down.

Anyways, just wanted to report you of another compliment on how amazing it sounds on my DOHC mustang.

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myponyrocks said:

ok I dont know the exact reason, but by using a comparison sorta theory heres what I think....

I was gonna compare whistling to blowing but then thought of all the dirty things people would say

just think of it this way, better flowing means more air is going through without hitting the noise making restrictions that were there before. It still makes a noise because it has to have some resistance, any how at WoT its more airflow, the resonance is deeper but its not as loud.

Now take the more restrictive pipe, its hitting "baffles" or whatever and making a lot of noise its not as deep but its louder because the added backpressure, at WoT its probly still louder than the free flowing, but not as deep (heres where whistling comes in and heres where the jokes start. The tighter you purse your lips the more shrill (high pitched) theres more back pressure, Theres a point where you cant whistle any more because your mouth is completely closed. Now go back to the other side, the wider your mouth the deeper the sound, the more air you pass through your lips the louder it is, but its not as loud as the whistle technique above... theres also a poin here where your mouth is opene too much and no sound comes out at all...)

Ok can I have a shovel to dig myself a hole now? I'm gonna hide for a while

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