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Magnaflow 16929 installed!

13K views 26 replies 16 participants last post by  KarlG 
#1 ·
I just wrapped up installing my 16929 cat-back from magnaflow. i'd post a video but magnaflows video on youtube is the same. gray overland 5.7 with this system ha.
just drove it about 30 miles, and it is already louder now than it was at first.
here are my first impressions: the sound is really nice. deep, smooth tone. no rasp, minimal interior resonance.

i was curious how the MDS would sound when it went to 4 cyl mode, and indeed it resonates a SLIGHT bit more, but hardly noticable. i was concerned about this. i had a chevy with multi displacement and the exhaust made 4cyl mode sound like crap inside.

as far as performance boost goes, it may be purely psychological, but i believe i detect a little better response on the throttle, and perhaps a little bit more low end torque. in the higher ranges it feels the same.
it sounds the best between like 2000-3500 rpm. thats where the good tone is. above that, the engine drowns it out.

all in all, i am really happy. the fit and finish is great. two resonators and then one larger can in the back. all polished. the tips are double walled with the perforated insert. it is a very "classy" sounding system.

installation took me like an hour with ramps and hand tools. would have been faster but my x-pipe was crooked and i only noticed it on the first drive. had to go back and adjust.

a solid 4.5 stars out of 5. that .5 would have been for just a LITTLE more noise.

hope this is useful to anyone considering!
 
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#2 ·
Can't wait to hear it! Take a video asap please!!! LOL
 
#4 · (Edited)
heres the vid from youtube...

http://www.youtube.com/watch?v=bAXWIzWlam4

i dont think i can do much better than that... ill try to get an interior video when i get back to my camera tho

as for the x-pipe (which is included with the system, if that was a little unclear), it's hard to pinpoint exactly what part of the system does what in terms of sound or power/torque... although from my experience with a whole lot of V8s with aftermarket exhausts the addition of the x-pipe is generally what makes the exhaust note very smooth as opposed to raspy/burbley/popping/etc.

i also fired it up without the exhaust installed (had to know what it was like) and my GOD it is LOUD like that.

if i were a little younger i would have done no mufflers at all heh.

anyway, the system comes highly recommended by me at least.
 
#18 ·
heres the vid from youtube...

http://www.youtube.com/watch?v=bAXWIzWlam4

i dont think i can do much better than that... ill try to get an interior video when i get back to my camera tho

as for the x-pipe (which is included with the system, if that was a little unclear), it's hard to pinpoint exactly what part of the system does what in terms of sound or power/torque... although from my experience with a whole lot of V8s with aftermarket exhausts the addition of the x-pipe is generally what makes the exhaust note very smooth as opposed to raspy/burbley/popping/etc.

i also fired it up without the exhaust installed (had to know what it was like) and my GOD it is LOUD like that.

if i were a little younger i would have done no mufflers at all heh.

anyway, the system comes highly recommended by me at least.
That particular jeep in the vid sounds like a 4 cylinder at low rpm.. weird, I hope yours doesn't sound like that at WOT.
 
#14 ·
Since I don't have my Jeep yet, I can't check the relationship of the mufflers to the skid plates. Do you have the off-road package? Are skid plates an issue during install?
 
#15 ·
chibianh, the tips are a decent bit larger. they poke out like 1/4 inch too whereas the factory tips were recessed into the bumper openings. they dont stick out enough to reduce departure angle or anything though.

haven't really looked into anything else like the headers, but theres a chance from looking at it that the right shorty headers (long tube forget it with the cat) would work. cant say for sure.

as for the skidplates, i don't have em. however, i would imagine that if you do, they gotta come off for this. once installed there should be no interference though, the whole system is tucked into its little tunnel under the car really well.

rdmacneil, on the highway at about 75 it is quiet, especially because at that speed youre running on all 8 unless its completely flat for a while or even maybe a slight down grade. that said, when it does switch into 4cyl mode, you can tell. pitch rises a little, and noise rises a little (4cyl is louder at cruise than 8!).
 
#16 ·
as for the skidplates, i don't have em. however, i would imagine that if you do, they gotta come off for this. once installed there should be no interference though, the whole system is tucked into its little tunnel under the car really well.
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Thanks for that information. My OVL, when I order, will definitely have factory skids, so will hold on the exhaust until confirmed that it works with the factory skid plates.
 
#24 ·
I have just installed the magnaflow dual split as well and man i am loving it! it will get louder over time mine has already gotten a little bit louder. and also did you notice a stinky smell first few days of driving with the exhaust? i was told thats just the factory coating burning off but i havent noticed that with other exhaust systems ive had in the past, HKS, Apex.. etc
 
#26 ·
Yea mine smelled funny. Cosmoline burning off.
No fit with skid plates! Oh no! As my engineer buddy says, it's all just about finding the right size hammer to hit it with to make it fit.
 
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