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Old 03-07-2013, 02:09 PM   #1
ahsfba
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Mellow MagnaFlow

Just got the MagnaFlow cat-back exhaust system (15072) installed on my 2012 hatch. The tone is gorgeous and the car pulls beautifully now, but I was expecting it to be a little louder. From what I've read, there is a break in period of a couple thousand miles with these things, but the noise will only increase slightly. Some say to delete the middle resonator and that should increase the volume a bit more. Is this a good route to take? How much will this affect volume and/or horsepower?


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Old 03-07-2013, 02:18 PM   #2
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the resonator shouldn't have any affect on your horsepower.
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Old 03-07-2013, 02:22 PM   #3
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Quote:
Originally Posted by ahsfba View Post
Just got the MagnaFlow cat-back exhaust system (15072) installed on my 2012 hatch. The tone is gorgeous and the car pulls beautifully now, but I was expecting it to be a little louder. From what I've read, there is a break in period of a couple thousand miles with these things, but the noise will only increase slightly. Some say to delete the middle resonator and that should increase the volume a bit more. Is this a good route to take? How much will this affect volume and/or horsepower?
I would leave the Magnaflow the way it is. Just in case you add the big boy headers down the road for that extra 10-12whp.

Also for it to stay mellow even with headers. The Magnaflow sounds great as is..
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Old 03-07-2013, 08:40 PM   #4
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Once it's "broke in" it will get louder. It's not to the point where it shatters your ear drums, but it produces a really nice note. Mine is pretty loud when I step on it, but cruising along at 70-75mph you can barely hear it in the car.
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Old 03-07-2013, 11:19 PM   #5
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the resonator shouldn't have any affect on your horsepower.
Thanks. This is my first time installing aftermarket exhaust on a vehicle. I didn't think removing the resonator would do anything to the horsepower since it's essentially the same principle as a lunchbox delete, but I had to ask.

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Once it's "broke in" it will get louder. It's not to the point where it shatters your ear drums, but it produces a really nice note. Mine is pretty loud when I step on it, but cruising along at 70-75mph you can barely hear it in the car.
Thank you! That's what I've been reading. Towards the end of my commute today it seemed to get quite a bit louder and throatier. Even if it gets only slightly louder, I'll be completely happy. The tone itself is awesome! Glad I spent the extra on the MagnaFlow
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Old 03-14-2013, 12:37 PM   #6
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A few days ago I got the center resonator removed just to see what it'd be like ($50). The car sounds amazing! I'll try to get a youtube video up within the next few days :)
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Old 04-04-2013, 02:46 PM   #7
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A few days ago I got the center resonator removed just to see what it'd be like ($50). The car sounds amazing! I'll try to get a youtube video up within the next few days :)
Got a vid up yet?
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Old 04-04-2013, 03:12 PM   #8
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Sorry, didn't realize there was still interest! I may be able to get one up tonight. I still get whiffs of that new exhaust smell on occasion, so I think it's still breaking in.
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Old 04-04-2013, 09:40 PM   #9
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Alright. I was able to shoot a really quick video when I got home from work. I'm trying to get hold of my buddy's nice video camera to give you guys something better.

YouTube Video
ERROR: If you can see this, then YouTube is down or you don't have Flash installed.
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Old 04-04-2013, 10:21 PM   #10
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Where is the middle resonator on the magnaflow system? Am I missing something?


Edit: nevermind I see now that the word middle was used in the first post then center was used later.... carry on I love magnaflow!
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