exhaust/mufflers?

Orderd a Cold air intake and about to order exhaust...just wondering in order to increase my HP is it better to get a whole new exhaust system or would a larger muffler do about the same? im pretty sure a new system would be a lot better just dont know if its needed or not?

A cat back system from Magnaflow would be your best bet. It will allow better flow than stock and remove the resonators in the stock exhaust.

Another option is to get a high flow or straight through muffler and a high flow cat rather then an entire cat back system. This will be cheaper and you will be reusing your 2.25in exhaust tubing since it's going to be the same size as the one from the magnaflow cat back...
Magnaflow cat back - $500

High flow cat between $100 to $150
magnaflow race series for 2.25" $120

You'll save over $200
Performance difference? negliable.

If you're going to get a cat back exhuast, I suggest change your headers and get a 3inch diameter cat back instead.

The eclipse already has an excellent exhuast system. You won't get any noticable power increase from an exhuast upgrade except my above mentioned headers+catback upgrade which will give you maybe 30 or 40hp. If you're going to do a pussy upgrade, I suggest you save your money. Go for the big one.
Here's how... Quit smoking -> $3.50 a pack 1 pack a day.
1 year = $1277 = NEW HEADERS + exhuast.

Oh yeah, sorry Johhny, didn't mean to go against you just giving some money saving alternate advice.

Oh yeah. Catback system hp increase for eclipse-> 3 to 4hp.
Cost? $500 that's about $125 per hp.

headers+catback upgrade which will give you maybe 30 or 40hp.
that seems a little hight for just h/e. maybe some aftermarket camshafts and gears, and high compression pistons on top of that, you'd get that kind of gain.

yeah, with headers and exhaust you will gain maybe 15-20 HP max. The stock cam is more than adequate until you add some type of FI to the car.

Here is a good fix. go get a diamante intake manifold and TB. The TB is 68mm matched to the intake manifold. That will be a great addition that will allow for alot more power down the road.

BTW, how much would it be to rent a diamante for a day?

they actually do have a heder kit that comes headers downpipe and a high flow cat that they claim 30 whp on the dyno.

If you are looking for the ultimate muffler it's Dynomax Mufflers.
Check out their ULTRAFLOW Welded Universal Muffler, this muffler can be welded to your exhaust pipe and is universal for any vehicle.

The CFM is 1133. This is the sickest muffler available on the market today.

Dynomax ULTRAFLOW Welded Universal Muffler: http://www.dynomax.com/ultrafloweld.stm

Dont be an uneducated idiot and buy those magnas or flowmasters. If you need to go with magnas then just get their pipes but saw off the muffler and get a muffler shop to weld this baby in. You will gain at least 30+ HP with headers. Oh and did I mention you get a LIFETIME warranty on your muffler?

You know if it was me I would have this system...
Top-Of-The-Line Borla Exhaust
Saw off Borla Mufflers
Get muffler shop to weld Ultraflow Welded Universal Muffler to Borla Pipes

That should get you the most HP gain possible since borla is good for pipes.

Also you can check out how the Dynomax Mufflers sound by going here...
http://www.dynomax.com/sounds.stm Did someone say Jet Engine?

Anyone that races you and hears that sound will start getting second thoughts...

When it comes to brakes the best is brembo, but when it comes to exhausts you need a Dynomax. It's the real deal. Mod your car right dammit and start researching the best stuff.

-Nexagen

OK as I stated in my earlier post, get borla pipes, saw off the muffler/tip and get a muffler shop to weld the Dynomax Mufflers.

Here is a picture of how the Borla Catback looks like on a 3G V6...

http://www.borla.com/automotive/?cartID=2004020414204868.4.38.13

See that tip? Get a muffler shop to saw it off and then make them weld a Dynomax Universal Welded Muffler. The shop guys will take care of all the fitting so your Dynomax will fit.

This setup could run you up to a thousand with labor, Shipping and taxes but it's the ultimate exhaust system for a 3G.

I consider it a Stage 3 Exhaust. You will feel the difference right away.

Hmm I guess the link for Borla did'nt show the V6 GT. Well you can just use the menu and select mitsubishi - > Eclipse -> GT -> 2000+

If you are looking for the ultimate muffler it's Dynomax Mufflers.
Check out their ULTRAFLOW Welded Universal Muffler, this muffler can be welded to your exhaust pipe and is universal for any vehicle.



Dont be an uneducated idiot and buy those magnas or flowmasters. If you need to go with magnas then just get their pipes but saw off the muffler and get a muffler shop to weld this baby in. You will gain at least 30+ HP with headers. Oh and did I mention you get a LIFETIME warranty on your muffler?


That should get you the most HP gain possible since borla is good for pipes.



Anyone that races you and hears that sound will start getting second thoughts...

When it comes to brakes the best is brembo, but when it comes to exhausts you need a Dynomax. It's the real deal.

Mod your car right dammit and start researching the best stuff.

-Nexagen
Ironic that you should say to research stuff.

You really need to SHUT THE FUCK UP . Who the fuck would buy a borla exhaust, which is normally twice the price of Magnaflow, and then cut off the most expensive part? I guess you would.

You consider it a stage 3 exhaust? please, you are so uneducated it is not even funny. the funny part is you think you do, which makes you even more dangerous, because you give bad advice to those who are just starting out.

Thank god some reason was posted in this thread before you posted in it. I would think you would have learned your lesson with your "ultimate gs build, the nexagen f1" idiotic thread.

Thank god I am not the mod of this thread, you would be so moderated right now.

ATTN Everyone: Do not pay attention to anything he says

Nexagen has proven once again that he knows absolutely nothing. He is a magazine racer.

Get your head out of your ass man. Serioulsy. Do some reasearch and learn shit before you post. We dont want you to spread your disease of ignorance to eveyone one these forums

Well apparantly we are all expressing our first amendment rights and some in a much more immature and over expressed manner. But this is really a post where we post suggestions.

Does someone have to take these suggestions and take them literally?
No

Do you have to get a specific brand and stick with it just cause someone says it's the best?
No

It's all up to you. Heck it's your money you decide what to do with it in terms as to how much you want to spend on your car. If you are on a budget get cheap stuff.

Your best bet would be to just go to http://www.google.com and type this...
Borla Reviews, Dynomax Reviews, Magnaflow Reviews
http://reviews.stangnet.com/review.cgi?ID=150 <-Dynomax Reviews
http://reviews.stangnet.com/review.cgi?ID=129 <-Borla Reviews
http://reviews.stangnet.com/review.cgi?ID=230 <-Magnaflow Reviews

Check the ratings on all the sites and see what people say about it. In the end the HP gains wont be too far off. Each exhaust system does sound different depending on what you are looking for.

Now dont get me wrong Magnaflow is pretty decent, their pipes are usually big and big does not mean better flow, still they offer good performance. Some people think that if their exhaust is the size of a trash can they will get better flow but no that is not the case. They sound pretty good and yes they are cheaper then borlas.

They perform just as good as any system out there and I think the difference in a Dyno could be around 1-2 HP or even to the third decimal point compared to the other two. In the end it's the Dyno that will tell you which is the best.

It's pure preference as to what you want to add. Just choose something you think is good from what others have said then stick with it. Or if you are all about how your car looks choose something you think will look good with your car.

nexagen, you are a f-ing idiot. Your stupidity is appalling. How dare you put a mustang review on this forum???

If you need to go with magnas then just get their pipes but saw off the muffler and get a muffler shop to weld this baby in. You will gain at least 30+ HP with headers.

Have you done this? Have you ran this on the dyno? If not don't bull shit. If you haven't noticed yet, people on this forum give you crap because you are insulting and nothing you say is remotely intelligent.

The statement nexaidiot posted is fine. You want reviews, you have them But keep in mind that HP and WHP is alot different. And also realize that reviewers get PAID to review. And some companies might just give them kickbacks for a better than average review. Ever think of that?

You claims of power are totally unsubstantiated. Also, the stangs you metioned are probably the V8 version and produce alot more exhaust than the V6 or I4 eclipse. You saw what they posted and think that is universally applicable. Nothing could be further from the truth.

the eclipse exhaust system flows very well for it being a stock product. Obviously some aftermarket systems are better than others, but for the 3G, the system must be specifically tuned for maximum gain.

nexagen is the same idiot that posted in another thread saying that the Dynomax full cat-back system produces 10x the power than a flowmaster does. thats like 100hp for just a cat-back. man i wish i could find more upgrades like that. ur an idiot

Do you have to get a specific brand and stick with it just cause someone says it's the best?
No

Ha ha ha....that coming from the guy who said he was gonna get an AEM intake (with his turbo no less) because it's "the most expensive."

What a jackass.