probably a stupid question, but... - Jeep Commander Forums: Jeep Commander Forum
Exhaust Questions or advice about exhaust systems? This is the place...

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post #1 of 12 (permalink) Old 11-20-2010, 03:54 PM Thread Starter
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probably a stupid question, but...

why would someone want to change out their exhaust system? how is it an upgrade? is it just to make it sound different?
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post #2 of 12 (permalink) Old 11-20-2010, 04:18 PM
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Originally Posted by 7toothsmile View Post
why would someone want to change out their exhaust system? how is it an upgrade? is it just to make it sound different?
To let it breathe. The faster air can go out the faster it can come in.
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post #3 of 12 (permalink) Old 11-20-2010, 04:23 PM
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exhaust is your engine exhaling and the intake is your engine inhaling. Think about it, if you were running down the track trying to breath threw a straw you would be pretty tired and not able to go real fast. So upgrade get a bigger straw with less stuff in it so the air flows better. You would be able to breath easier hence go faster and farther. Same thing with intake and exhaust mods just letting the engine breath better so it can create more power.


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post #4 of 12 (permalink) Old 11-20-2010, 09:13 PM
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I agree with Sal.

Though I will add that it also sounds AWESOME!

06 Sport-4.7L with QT2

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post #5 of 12 (permalink) Old 11-21-2010, 08:12 AM
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I, too, agree with sal. I did install an aFe CAI, for better performance, and was thinking about a cat back system to finish the project. But for some reason, the aFe changed the tone of my exhaust. It is somewhat louder inside @ cruise, but when I "get" on it, it sounds exactly like cars from my past: 1968 Barracuda Formula S, 1972 Duster 340. At idle, it sounds like a boat (Malibu, CorrectCraft, etc). So, I nixed the idea of adding an exhaust, although it would would help with the breathing. I welded on a dual, intercooled Borla SS tip instead.
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post #6 of 12 (permalink) Old 11-21-2010, 08:46 AM
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sounds better.
more power (breathes easier)
better gas mileage.
sounds better.
sounds better.
and uh....sounds better.

*The More You Play With It, The Bigger It Gets*
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post #7 of 12 (permalink) Old 11-21-2010, 10:53 AM
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Quote:
sounds better.
more power (breathes easier)
better gas mileage.
sounds better.
sounds better.
and uh....sounds better.
So, am I to understand you think it sounds better?

Sal I think that was an excellent analogy......


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post #8 of 12 (permalink) Old 11-22-2010, 08:02 AM
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exhaust make car go vroom vroom.

*The More You Play With It, The Bigger It Gets*
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post #9 of 12 (permalink) Old 11-22-2010, 08:18 AM
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Does it make it sound better? lol j/k. Although I've heard it doesn't do much for a 3.7 as far as sound.

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post #10 of 12 (permalink) Old 11-22-2010, 12:59 PM Thread Starter
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I, too, agree with sal. I did install an aFe CAI, for better performance


so is this an intake mod then? if one replaces an exhaust, say with a flowmaster, since i know that name, does that change the intake as well or do you need to do another part? i read a thread where the guy just took off some part of the intake and then put on a k&m intake box.

i'm getting a trailer that will be ~5500lbs and plan on pulling it quite a bit so i want to make it as easy on my rig as possible. right now i have a complete stock jeep (hemi with the factory tow)
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