Magnaflow vs. Corsa vs. Eforce - Which Catback?
 

With a full exhaust system, my catback is just too loud. I cannot cruise on the highway or start my car when its any colder than 30F outside, without my car wanting to explode. I need some opinions.

Exhaust Setup: Tomei catless UEL, Tomei Overpipe, Berk Catted Front Pipe……and then what?

I haven’t heard these systems in person, but from reading online, this is what I have gathered:

Corsa 2.5’’ – Expensive, loud, not a lot of drone, heavy http://thmotorsports.com/i-1890990.a...vyMaArjr8P8HAQ
Magnaflow 2.5” – medium price range, not too loud?, maybe even too quiet??, no drone, heavy https://www.rallysportdirect.com/par...7ysaAigq8P8HAQ
Xforce 3” – N/A so I don’t need the 3” (yet), cheaper than the others, heavy https://www.rallysportdirect.com/fit...t-back-exhaust


I can’t get a real good gauge of each of these systems. The Corsa is the most expensive, and I think the one I would pick, but its $800+, the others are in the $500 range. I like the growing room of the Eforce, but I cant find much about it and what is the point of a 3” system, and having a 2.5” front pipe (HKS SC system is in the future)? Magnaflow is where I am leaning now, but my fear is that it will be too quiet.

I really want the car to be loud, deep and not drone as much. I don’t mind a little drone, but the N1 setup is just way too much at this point for the neighbors to take and for me, when I am on the highway (best exhaust system around for cruising around town).

Appreciate any input – and yes, I have scoured google/youtube to the end of the world and cannot decide. Talk me off the ledge of buying the Corsa or Magnaflow, or help me decide on the Eforce!

...Xforce. Eforce is a supercharger.


I would say magnaflow, even though it is not a very popular option on this board (research why) and it has a stamped u bend that kind of turns me off from it. It makes middle of the road power, less than stock weight, and easy on the wallet pricetag. It also comes with a great warranty.


The Xforce seems like a good exhaust, I'm not too sure why it isn't run more often. 3" would be overkill, and I doubt you see any gains from it with minimal mods like you have, and it is overkill for 90% of builds, but it would sound deep.


Corsa.... way too much money, not a great sound (JMO) but it doesn't drone!


Have you looked at the Q300??? Seems about what most people get when they don't want drone and still want a good sound. Any of these exhausts with missing cats are loud, and this car lends itself to sounding horrible....so I, personally, would go with the quietest setup possible, as it will still be louder than you anticipate.

I can't even blame autocorrect for that one....xforce is exactly what I meant.

And thank you for the input. I swore off the Q300 because the last thing I want to do is lose any sort of power and fear not having enough noise.

I wish I could tell how loud/deep these setups all are. In a perfect world I would listen to them all and decide.

i love the sound of my corsa and i think its worth the cost because of their muffler design. but it is definitely loud, and I'm only running the non-catted berk front pipe and that. about to weld in a resonator into the berk front pipe.

also running a JR supercharger, with a Delicious tune that reduces the cold start cycle. so its not as loud as it used to be, but still loud haha

Lose power? Over what, the N1?

Put stock frontpipe back on.

Yes.

I can't quite remember but I think someone on the boards may have mentioned the corsa gets stupidly loud with a uncatted uel header. But 'stupidly loud' is fairly subjective depending on person to person. I think a Magnaflow should be more tolerable with your set up. Not sure about xforce...

I also suggest looking at the Q300 or you can even save some money and go back to stock catback. The power gains with an aftermarket catback is pretty minimal anyways. Both will substatially reduce the amount of noise than your current setup but still will be loud enough for people to turn heads when you rip by!

Why are you only considering these 3 options?

There is many other catbacks that would be a good choice for you if your looking for a quiet catback. Yes some are very expensive, but these 3 catbacks are the most quiet options on the market today.

Option 1
Fujitsubo Authorize R

Option 2
Blitz VS/VSR

Option 3
Invidia Q300

Regarding front pipes (which will bring noise down drastically)

Option 1
Stock Front Pipe

Another Front Pipe that actually keeps the same noise level the same as Stock FP is the Fujitsubo Dual Resonated FP, however it only comes catless so your car will smell.

That's the problem...I'm searching for the unicorn. I want loud and no drone. I'm ok with a little, but current state is too much for the highway and winter cold starts. I love the volume now.

I would love to run the Q300, my biggest fear is shelling out the money doing the install and starting the car and being so disappointed.

I don't think that is an issue you will run in to.

Go magnaflow.... sounds like what you need.

I like my Magnaflow a lot. Not too loud and deeper sounding. Nice tips, not too tacky like some that I've seen.

However, after I installed UEL headers it was noticably louder. Then, after installing an HKS supercharger it is a bit louder than I'd like on not fully wot. Forces me to turn up the stereo to actually hear morning talk radio on my stop and go commute.

I still use the stock front pipe to retain one cat and to keep the resonator. I am considering buying another resonator and having it welded into the front pipe to tone things down a bit.

Keep this in mind if you might go FI. Dont worry about power, +/- 2 HP isn't going to make any difference.

Go to a car meet and ask other owners to hear their setup? Videos do no justice.

I have the Corsa catback and no way in hell am I putting on a header. I've heard in person the catback + uel header and other components changed.. holy hell is it loud! Btw, there's a reason why it's so expensive. No drone at all, and that's what I was looking for when I was still shopping around.

I second what Mr. Impreza posted. :)

Solution:

Sell your setup. Go w/ Apex'i header/overpipe/catalyzer setup if you must run a catalytic converter in your system.
Or, sell the Berk and run Fujitsubo front pipe if you don't need to run a catalytic converter.
Select your favorite exhaust.

-alex

You know you can add more resonator to the midpipe to keep volumen down

Oh yeah, thanks for the reminder!

Well, if I ever do decide to chase more power, I'll keep that in mind.

Thanks for the reply! Exactly what I was hoping for. Have you heard any other setups in person? I've heard the full cat less with a non res Perrin and that may have been louder than my catted N1 setup.

Maybe my fears of going magnaflow and it being too quiet aren't justified. Maybe it's what I need. Thanks man.

I'll be putting on a uel header and and have the corsa installed right now. I'll update with how the sound is and try and get a decent sound clip. Will be putting back stock front pipe

Great, would love to hear your thoughts!

Some others I didnt consider:

Perrin Resonated, FT86 Speed Factory, and the Megan catback.

I've got the Perrin 2.5" resonated (with UEL catless header/OP/catted FP). I like it, but it's not the deepest sounding exhaust. If you want deep, you probably want something different. Maybe the Perrin 3" resonated would be better, not sure.

Awesome feedback. Thank you. The un-resonated I heard was pretty raspy.

Leaning towards Magnaflow. Can't find it any cheaper than $660 on Amazon. Going to check with some vendors now.

I may also paint the system black to keep with the 'stealth' look on my car. Fingers crossed it isn't too quiet.

I sometimes see them being posted for sale for really good prices on here, if you are willing to wait. Otherwise, Magnaflow has an awesome sound - was about to go that route until I discovered Corsa. :)

Thoughts on the Megan racing catback: http://www.maperformance.com/product...FUMlgQodWakH_g

http://d5otzd52uv6zz.cloudfront.net/...1083ca-800.jpg

No.

So I installed the uel header today. I will upload sound clips when I get the chance. I absolutely love it with the corsa exhaust. I put my stock front pipe back on and believe it or not.... It's quieter than the corsa exhaust with a cat less un resonated front pipe. People even commented that it's quieter. At WOT she screams but it's an amazing sound. I don't think I'll be putting back on the straight pipe... I think this is perfect

Or you can buy an axleback from them to keep price down
stock midpipe (resonator) is pretty good to keep rasp/drone down.

Found the magnaflow for $570 shipped online.

How is the volume? Tone? Drone?

Thanks for keeping us updated. Would love a
Video clip!

@tinma: Which header. Chatted or no?

@OP. Have you considered using OFT or similar aftermarket tune to eliminate the high overlap valve timing during cold start?

I hate to admit it....but I have the OFT and no personal laptop to try and play with that (IT for work and I have two laptops for my job). I wish there was a service, where I could send my OFT and have it flashed with a 93 octane tune and this overlap valve timing you speak of.

i love my magnaflow with front and over pipes sounds just right i have a video with me on the dyno

Quick update.

After measuring my Berk Catted Front pipe and discovering it to be 2.25", I am going to ditch the front pipe and catback and do the full, xforce, 3" system with the cat.

I am curious the noise level, but we will see. I will make a separate thread and report back!

Did you ever get a chance to upload the clip? Considering this with my Corsa but want to hear it first. Thanks!

Sent from my Nexus 6P using Tapatalk

I got the Gruppe-S header (uncatted)

Ill try and get a clip of it this week....Ive been busy lately so I have not been able to yet. Ill update very soon

Keep us posted. I like the tone of corsa and I'm curious about the sound if with a uel header.

Hi,

I just ran into your thread and saw what you were choosing between. I actually run a Gruppe-S UEL Header (Similar to Tomei UEL), stock OP, stock FP, and a magnaflow catback.

I don't have a youtube vid handy, but if you find instagram for tedders_frs, I have a video of my car on a dyno with that exact same setup if you wanna hear. Of course, it could be skewed by my phone's microphone. It's one of the older videos on my account. You could just send me a PM later and I'll try to upload a video if you want.

I have the corsa cat and tomei uel. I love my corsa cat, no drone at all and it keep the burble real deep and not to ricey. Its also nice because you can keep it fairly quiet if you need to with low rpms. I would go corsa especially if you want something quieter then what you have.