Huge Magnaflow installed, definately wife approved!
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I finally got around to installing the new magnaflow muffler... What should have been a simple muffler swap went south real quick... First off it is definately longer than the previous magnaflow and freaking heavier... Everything started out fine, then i ran out of wire... So i switched to my spare roll of flux core, then damnit it ran out... so i had to run and get another roll.... it took like 4 hours total to weld the damn thing in...
It has about 1/2 the volume at idle, but cruising it is completely quiet! all i could hear is the wind blowing, no exhaust sound... It still has some rumble at WOT but nothing like it used to....
I still have the round 5 x18 in front of this one![Nod](https://www.performancetrucks.net/forums/images/smilies/LS1Tech/gr_nod.gif)
I installed magnaflow 12579
![](http://www.performancepeddler.com/images/Magnaflow/12579.jpg)
compared to old one...
![](http://i27.photobucket.com/albums/c185/BlackGMC/Truck/Exhaust/Magnaflow-02.jpg)
what the inside looks like
It has about 1/2 the volume at idle, but cruising it is completely quiet! all i could hear is the wind blowing, no exhaust sound... It still has some rumble at WOT but nothing like it used to....
I still have the round 5 x18 in front of this one
![Nod](https://www.performancetrucks.net/forums/images/smilies/LS1Tech/gr_nod.gif)
I installed magnaflow 12579
![](http://www.performancepeddler.com/images/Magnaflow/12579.jpg)
compared to old one...
![](http://i27.photobucket.com/albums/c185/BlackGMC/Truck/Exhaust/Magnaflow-02.jpg)
what the inside looks like
![](http://i27.photobucket.com/albums/c185/BlackGMC/Truck/Exhaust/Magnaflow-01.jpg)
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yes those magnaflows r big.. im running same one but di/do no cats... i only run one tho.. it sounds nice on idle and pretty loud at wot.. but much better then my 14" flowmanster.. i couldnt talk over that one.. this one is nice and at fwy speed it just like blackgmc said its just blowing air out..
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ive read that as well, im in for a video of idle, and wot if you got them. my corsa is raspy, and loud as a mo fo and wot, but i just bought the dynomax bullet as a resonator before my corsa, ive never heard of anyone running 2 in series mufflers, but hell, id give it a try. i want something quieter. hope i get it .