nice man!! get some sound clips up when it goes on... to let everyone hear the difference between a $15-$500 fart can, and a real exhaust lol

i jacked up my car today and was looking at the exhaust piping.. the piping is actually really well laid out. i couldn't crawl all the way up under it, but it looked like it had one long ass cherry bomb shaped cat, or it was a really long resonator. when i get it up on the rack tomorrow i'll see for sure.

 

That was not the Cat back that is on Magnaflow's web site was it??? That thing sounded awsome! Or did you just do a muffler swap?

 

I've been told that our cars come with a resonator stock.
On another note my brother just straight piped his Ion Redline, and HOLY $H*t it is loud......... and that back pressure ! Nice deep sound but it is loud and oh yeah did I mention it was loud. I don't think I'd recommend this if this car is your daily driver car.
Ok well this is dissappointing cause I'm looking for a less restrictive muffler for my car but after hearing your results looks like I'm not going with Magnaflow. Any suggestions of a good muffler that is reasonbly priced? Lets say in the $150 or lower range?

Tom

 

I did a muffler swap... but to be honest..It's the same muffler magnaflow was going to use on there new kit for the SS. I don't think piping is going to change the sound of exhaust much. I kept the Stock piping on for now but my exhaust has quited down a little bit. I may need to install yet another resinator before the muffler but it the performance gains are there.

Like I stated earlier, regardless which exhaust you go with it's going to be REALLY LOUD. Let me explain it again. REALLY LOUD. The stock one GM has on the cobalt is there for a reason, if replaced it will be loud as ****. Only sound clips I haven't hear yet was the dynomax exhaust. Flowmaster is a horrible sound , magnaflow is straight up loud and Borla still sounded weak but loud.

In another week I am going to search for a quiter exhaust system that still gets a nice tone in the RPM's. This one has to go. I've already been pulled over twice because the cops thought I was giving the SS it's all and it was only as 2k RPM. , mind you I was doing the speed limit and no points.

I will post pictures of the new exhaust later today on.

 

Pictures from yesterdays removal of the old exhaust.


Old Muffler off!



Old Muffler on the floor. Wow, what a beast!


Too late now... can't go back!

 

Go with the magnaflow oval muffler, not the round one. There is a big diff in sound between the two and fit as long a resonator as you can fit and you will be happier as it seems that you like the kind of exhaust sound that I do, low and deep at low rpm's but a little louder and nastier as the revs hit the top

 

Not to be harsh, but you were warned couple times.....

This is a free flow muffler and you NEED a resonator! Put a resonator on and see how it sounds then, you might just like it!

 

I am in the midst of getting a 2.5 and 3 inch stainless steel exhaust system built for my SS/SC. They are using a vibrant muffler (what the shop sells). I should have it done by Wednesday next week.

I think if it works out they will be able to make and sell kits to other mail order.

I have a base line dyno and the shop is doing a dyno on both the 2.5 and 3 inch systems to see which is best.

 

no gains going past 2.5 in exhaust piping. Just a waste of money. Plus 3' exhaust piping won't fit in the areas designated for the exhaust. This I learned already. 2.5 is the bigest you can go for the layout for the exhaust back. 3' is possible... if you want your piping to always hit bumps.

 

So I just listened to the exhaust on Magnaflow sound clips for the cobalt and what I have now. It's the same , Thinking of going dual exhaust now and add an extra resinator on my car and buy an rk sport rear valance to complete the look. I think with duals it won't sound as bad as with one. It will be evenly pushed out and a better resinator will make it not sound so ricey.

Exhausts on four cylinders i'm thinking are doomed from the beginning you touch them. I heard a blue cobalt coupe today with an oval magnaflow on it, owner said he also wishes he didn't go with magnaflow too, freak occurance? I think not. He asked me how he sounded on the road and I said no quiter then mine is. sounds just like my car except the rumble is not as deep and sounds like a mesquito buzzing in your ear instead, he also did just a muffler swap. It's not going to matter what piping you use. Fact is, when we go aftermarket we need something to tone this **** down, maybe we need to follow suit with Subaru and get two resenators. ugh! I just wanted to barf when I heard the coupe with the oval magnaflow .

Sorry but if you don't want your cobalt to sound like rice, don't get a magnaflow.

 

Well I wouldn't be so quick to make that statement because I know that it does

 

Yeah if your pushing over 300HP, it's worthless otherwise. In case you haven't noticed, our cars haven't touched even the 230 barrier yet. Let alone 300. I know with more boost and other mods a 3' exhaust will run well but worthless otherwise.

 

how is a dual exhaust going to evenly push out? if you thought it sounded bad w/ one exhaust it will sound twice as bad w/ 2. you have a 4 cyl engine. why would you put dual exhaust on it if it didn't come out the factory like that? you only have one header. i'm not trying to bash here but it just doesn't make sense to put a dual on a 4 cyl.

 

SRT4's have it on a 4 cyl. What makes the Neon so special?
I say if you want dual go for it. Its your car

 

jonelz, not to toot the horn, lol but the SRT has a TURBO

Turbo's help to cancel some exhaust pulses as they travel thru the T/C housing that is how dodge get's away with having no muffler stock, just 1 resonator in the intermediate pipe...

but I agree, the sunfires come with duals stock, they fix the problem of too much flow thru one pipe by putting a larger muffler on the side closer to the intermediate pipe and a smaller on on the muffler further away. This in turn creates more restriction on the shorter side forcing the exhaust thru the longer side.

Put that resonator on.....

 

Good point but if my 2.4L 155hp Grand AM can get away with it, so can the SS

 

well the srt-4 is turbo charged for one and it also came w/ dual exhaust. i am aware that some 4 cyl cars came w/ duals but that is how they were designed and i'm sure they are restricted to not push out too much to make it sound nasty. i'm just not a big fan of putting dual exhausts on a car that doesn't come w/ it out of the factory. but then you are right, it's his car and he will do what he feels is right.

 

Didnt say it couldnt be made to work, but it can. What the problem is on you GA, if you have the stock duals and look underneath, then you will see that you have 2 mufflers and one is smaller than the other to help control flow....

The SS will flow a lot more exhaust than a 2.4L GA so that is a tough one there....


But hopefully he will get it worked out!

 

Wrong. The SRT-4 does not have dual exhaust. It has one muffler with a pipe bent in a u or y lettering that gives the apperance of dual exhaust. It's not dual exhaust it's an exhuast w/u or y bent piping.

Going dual exhaust on my car will not sound worse. What I meant to say in the last statement is that with the exhaust being pushed to two mufflers instead of one it will have a more even tone. With one muffler on the car it will obviously sound loud because it has to push through that muffler. Now having it pushed through two mufflers on a 4 cylinder will lessen the tone.

It has been proven.

 

ya, ok dual exhaust tips on the SRT, but so would what you would be doing, there is no room for a true dual nor a need for one. But I am telling you it sounds WORSE, when we blocked the exhaust going to the 2nd muffler it sounded better! But like Jonelz says do what you want with your car...we are only here for advise and optinion, both of which is FREE

 

Note taken , thanks for the advice.