Thread: Dual exhaust on n/a 3.8

It will change it some? The more air you pull into the engineand the more you open up the exhaust opens up the motor and has to change the sound some. I agree with you to a certain extent on these motors because the stock manifolds are so resrictive and they have such a small throttle body. Every little thing you do will change the sound of the motor some, especially headers, cam and valve train.

sure it does

Originally Posted by BeastlyGroceryGetter

sure it does

because the motor has the ability to breath doesnt mean the exhaust note changes. the sound of the exhaust is based on a few factors:

a) size of the piping
b) running a cat or no cat
c) running a resonator, which type, or not running one at all
d) which mufflers are being used, or none
e) not from the intake

Originally Posted by Bio248

your intake has NOTHING to do with how the exhaust sounds.

Your full of...

it doesnt matter. the intake doesnt change the exhaust sound.

I had my air box on just a few minutes ago and took video of the exhaust with the box on and it was the raspy gp sound. I put my open cone on and it definately added depth to the exhaust. It didnt change the tone but it did add depth.

im trying to figure out how to do it from my phone

stock air box is restrictive, now put on a cone filter that is less restrictive, more air is able to pass through the engine and out the exhaust
the more air going in has to come out as well and it comes out at the end of the exhaust system where the mufflers are so they will behave differently

Not trying to argue with anyone or be a pita at all. I havnt been on the grand prix scene for very long so believe me or not, try it yourself. I cant get the second video with the deeper sound to send to my email. Even on something as small as my one cylinder 450 cc quad the engine tone changes when you add a different intake. Simply because the air is flowing at a different cfm through all of the parts you just mentioned. More air flowing into the tb through the intake manifold, into the heads and out through all of the components you just mentioned at greater volume creates a different sound again if you dont believe me get a db meter and test it at the pipe it does change. If you really want it to change up the compression and port the heads, then it will be very noticable.

what youre hearing is the intake.

f) sure it does

I have been building motors for 12 or so years bro, im over it your right im wrong even though the laws of physics say im right.

sure guys. keep being naive, it's fine. just stop saying it and letting other people learn things that aren't true.

im talking about no matter what intake you put on your car the exhaust note will not change. given that you were to change the FLOW DYNAMICS of the upper and lower intake then you may be able to produce a small, but different, sound from the exhaust. putting an open cone, short ram, fenderwell, etc. intake on your car will NOT change the exhaust note.

Engine sound and Exhaust sound are two different things.

You know what changes your exhaust note? GO FAST MODS! If its not quick, noone gives a damn what it sounds like anyway.

Yeah my engine makes more noise but my exhaust sure dont.