2.4L LE5 Performance Tech 16 valve 171 hp EcoTec with 163 lb-ft of torque

Aftermarket Exhaust on auto 2.4

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Old 01-26-2007, 12:21 PM
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Aftermarket Exhaust on auto 2.4

Hey guys.

I was just wondering how many of you 2.4 guys put on an aftermarket exhaust. I have a few questions for ya...

1. What brand did you buy? How much was it?

2. Sound quality?

3. Loudness at highway cruising?

4. And does it sound gay when it shifts?

I know a handfull of guys at my school that have autos with aftermarket exhausts that sound terrible when the car is driving. I don't want that. lol.

Thanks guys!
Old 01-26-2007, 12:55 PM
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Originally Posted by averagewhiteboy
Hey guys.

I was just wondering how many of you 2.4 guys put on an aftermarket exhaust. I have a few questions for ya...

1. What brand did you buy? How much was it?

2. Sound quality?

3. Loudness at highway cruising?

4. And does it sound gay when it shifts?

I know a handfull of guys at my school that have autos with aftermarket exhausts that sound terrible when the car is driving. I don't want that. lol.

Thanks guys!
Drive it in the position between "D" and "L" (is that "i"? - I can't remember). That gives you a shift profile that's definitely more agressive than the smooth shifting "D". It will sound a lot better (plus it's more functional for performance driving).

I'm going to put a full aftermarket system (header, custom down pipe with high-flow cat, and cat back exhaust) on my 2.4 auto soon and will report on the sound.
Old 01-26-2007, 01:03 PM
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Originally Posted by LewiSS
Drive it in the position between "D" and "L" (is that "i"? - I can't remember). That gives you a shift profile that's definitely more agressive than the smooth shifting "D". It will sound a lot better (plus it's more functional for performance driving).

I'm going to put a full aftermarket system (header, custom down pipe with high-flow cat, and cat back exhaust) on my 2.4 auto soon and will report on the sound.
it's absolutely NOT better for performance driving, i don't know where you're getting that from... "I" setting is 3rd gear, and will change to 4th gear at redline... if you're starting below the optimal speed for third gear than it's a hell of a lot worse than leaving it in D
Old 01-26-2007, 04:19 PM
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i have the corsa touring exhaust and its the nicest ive seen for the cobalt but also the most expensive as well. nice deep but not loud tone.
Old 01-26-2007, 04:23 PM
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^Corsa Touring +1!
Old 01-26-2007, 04:30 PM
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Originally Posted by D4u2s0t
it's absolutely NOT better for performance driving, i don't know where you're getting that from... "I" setting is 3rd gear, and will change to 4th gear at redline... if you're starting below the optimal speed for third gear than it's a hell of a lot worse than leaving it in D
???
"I" is designed to use the lowest gear possible while shifting, while the "D" is an overdrive and will use the highest gear possible. Try out both gears from a dig and I think you'll find that "I" lets a bit more juice out of the powertrain.
I'm just wondering what you are validating that contradiction with.
Hell even the owner's manual backs up what LewiSS said
Old 01-26-2007, 05:21 PM
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Originally Posted by averagewhiteboy
Hey guys.

I was just wondering how many of you 2.4 guys put on an aftermarket exhaust. I have a few questions for ya...

1. What brand did you buy? How much was it?

2. Sound quality?

3. Loudness at highway cruising?

4. And does it sound gay when it shifts?

I know a handfull of guys at my school that have autos with aftermarket exhausts that sound terrible when the car is driving. I don't want that. lol.

Thanks guys!
I'll be out at 1st Try in a few weeks here getting quite the custom exhaust put on. Everything is getting replaced... header to tip... with a few bits of crazy in between. I guarantee that no other Cobalt will have something like this on their car.

If you want, I'll let you know when I'm going into the shop.
Old 01-26-2007, 07:09 PM
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Word up, man. If I'm free, I'll certainly stop down.

1st Try FTW!
Old 01-26-2007, 07:20 PM
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Universal Magnaflow- $159 installed

Sounded GREAT before I added an intake

With just the muffler, the car was not loud at all at highway speeds.

It still sounds good, but I liked the sound a lot better with the stock intake. I am actually thinking about selling the injen intake because I miss how it sounded with just the muffler.
Old 01-26-2007, 07:25 PM
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That kinda sucks then... I'm nuying an Injen in a few months. lol. Any sound clips? Does it sound BAD wit hthe intake? Or just alot louder? I was kinda considering the universal muffler route, but I've heard good things about catbacks...
Old 01-26-2007, 07:29 PM
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It doesn't sound bad. It is louder and I liked the way it sounded with just the muffler and without the intake better.
Old 01-26-2007, 07:59 PM
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I have the GMPP touring on my 2.4 auto. It Has a nice deep tone. At highway speed you can barely here it inside the car. I think it sounds quite manly until it shifts into overdrive, then its not too impressive. I'm very happy with it.
Dennis
Old 01-26-2007, 09:35 PM
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Soundclips of the GMPP? Isn't that one like 600 though? lol.
Old 01-26-2007, 09:39 PM
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mine was $700
Old 01-26-2007, 09:47 PM
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Originally Posted by averagewhiteboy
Hey guys.

I was just wondering how many of you 2.4 guys put on an aftermarket exhaust. I have a few questions for ya...

1. What brand did you buy? How much was it?

2. Sound quality?

3. Loudness at highway cruising?

4. And does it sound gay when it shifts?

I know a handfull of guys at my school that have autos with aftermarket exhausts that sound terrible when the car is driving. I don't want that. lol.

Thanks guys!
1. Corsa Touring 615 Shipped ( Intense-Racing.com ) No longer available at that site I think =(

2. Sound Quality

3. Highway cruisin'

4. Uhh....I've never known an exhaust wanting to slide something into my bunghole when I shift but uhh... The answer would be no.


CORSA! NO DRONE! NICE TONE!
Old 01-27-2007, 03:01 PM
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Anything better than stock, so I chose the unique design ARK N2 from ARK Performance. The quality and fitting is awsome.
Ebay has a better price

1. 609.00 +S/H
2. Deep / strong
3. Works NP / Silencer included
4. Check yourself. http://www.arkperformanceusa.com/pho...ry.php?cat=505
Old 01-27-2007, 08:21 PM
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Will anything happen from just getting a universal muffler installed instead of a full catback? That's all I did on my old Accord and it was nice. Plus, 150 is much better to my wallet than 600. Plus, I'd rather use that 500 for my Recaros...
Old 01-27-2007, 08:27 PM
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The GM exhaust can be had for about $400.00 and sounds nice.
Old 01-27-2007, 08:32 PM
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^^^
Cadillac horns???

As soon as I saw that I thought of my Cobalt making the horn noise of my 89 DeVille. That thing sounded like a train. haha!
Old 01-27-2007, 11:52 PM
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Originally Posted by monkeiboy
???
"I" is designed to use the lowest gear possible while shifting, while the "D" is an overdrive and will use the highest gear possible. Try out both gears from a dig and I think you'll find that "I" lets a bit more juice out of the powertrain.
I'm just wondering what you are validating that contradiction with.
Hell even the owner's manual backs up what LewiSS said
you were right... i gave it a run in "I" from 20-80 and the car just took off... my bad for the mistake, and for giving bad info
Old 01-28-2007, 06:09 AM
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i like the way srt 4's sound and one of my friends will give me the stock exhaust from a srt4 do you think it will fit and will it sound the same
Old 01-28-2007, 08:48 AM
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Originally Posted by texlonghorn1212
i like the way srt 4's sound and one of my friends will give me the stock exhaust from a srt4 do you think it will fit and will it sound the same
nope
Old 01-28-2007, 10:55 AM
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Originally Posted by texlonghorn1212
i like the way srt 4's sound and one of my friends will give me the stock exhaust from a srt4 do you think it will fit and will it sound the same
Old 01-28-2007, 12:07 PM
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All engines sound different. That's like saying "I'm putting a Mustang 5.0 exhaust on my Cobalt and it'll sound just like the 5.0."

Just kidding man. Put the knife down.

Old 01-28-2007, 12:49 PM
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It's only funny cause SRT4s have a turbo in there somewhere.


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