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Installed My Magnaflow Today. Have Question

crepitus

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crepitus Enthusiast

crepitus

Posted
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So i did the muffler swap over the weekend. i got the 12589. love the sound when taking off and quite like stock when just cruising. one thing i dont like is the floor vibrates more now. did anyone that put on a magnaflow muffler try to reattach the stock shield? i think this would help but dont know how to go about doing it.

MotoMedic Senior Enthusiast

MotoMedic

Posted
Posted

i ordered the same muffler.. should come in mon/tues.. i plan to have them attach stock shield.. will let you know if i get vibration also..

 

 

 

you could always just take out the seats, pull up the carpet & line the entire truck floor with dynomat! :chevrolet:

omegafiler Senior Enthusiast

omegafiler

Posted
Posted

Can't say I've ever noticed a vibration with the Magnaflow... perhaps a buzzy sort of sound at first. But you may want to just drive it for awhile, let it get broken in, see how it sounds then. The tone does change after a bit and should sound better. Then after ya get some more miles with the exhaust, you can see if you want to make it quieter, louder, add a resonator, buy a Corsa, etc. :chevrolet:

hotwheels57 Enthusiast

hotwheels57

Posted
Posted

The oem shield is more for heat, not for vibrations. That said, you could attach the oem shield with long metal "zip ties" that are available in a well stocked hardware store, HOME DEPOT, LOWE'S, etc. You might also find them at SUMMIT RACING or JEG'S. You could drill a few small holes in the heat shield, then weld the shields to the muffler(s) at the holes

Look at the SUMMIT RACING catalog. They sell heat shields for certain models of the FLOWMASTER mufflers. You might be able to adapt them to your system. They're aluminum and can be trimmed, but they're not inexpensive. They attach with the same metal "zip ties".

Finally, more than likely you have the muffler(s) or pipe(s positioned to close to the floorboard or a frame rail/cross member, which might be causing the exhaust to transmit the vibrations your experiancing.

crepitus Enthusiast

crepitus

Posted
  • Author
Posted
The oem shield is more for heat, not for vibrations. That said, you could attach the oem shield with long metal "zip ties" that are available in a well stocked hardware store, HOME DEPOT, LOWE'S, etc. You might also find them at SUMMIT RACING or JEG'S. You could drill a few small holes in the heat shield, then weld the shields to the muffler(s) at the holes

Look at the SUMMIT RACING catalog. They sell heat shields for certain models of the FLOWMASTER mufflers. You might be able to adapt them to your system. They're aluminum and can be trimmed, but they're not inexpensive. They attach with the same metal "zip ties".

Finally, more than likely you have the muffler(s) or pipe(s positioned to close to the floorboard or a frame rail/cross member, which might be causing the exhaust to transmit the vibrations your experiancing.

thanks for the reply. i was thinking the shield may redirect the sound. the flowmaster shields say they do and they dont look like anything more then what i have for my stock setup. figured i would give it a try. the muffler is in the same stock position.

hulbert Enthusiast

hulbert

Posted
Posted
So i did the muffler swap over the weekend. i got the 12589. love the sound when taking off and quite like stock when just cruising. one thing i dont like is the floor vibrates more now. did anyone that put on a magnaflow muffler try to reattach the stock shield? i think this would help but dont know how to go about doing it.

 

Can you post sound of this exhaust, I'm trying to decide what muffler to put on but I want to strike that balance between quiet and too loud. thanks

MotoMedic Senior Enthusiast

MotoMedic

Posted
Posted

yeah, i have a lil vibration too.. but i decided to have my exhaust dump in front of the rear axle, so it's to be expected.

 

as for the heat shield decreasing sound- no chance. it's a only a thin piece of sheet metal... strapped to muffler it'll only vibrate/resonate at same frequency

MotoMedic Senior Enthusiast

MotoMedic

Posted
Posted

it dumps straight backin front of the axle, about 5 inches after the mulffler.. not the side exit in front of rear wheel like 'sport truck' style.. i'll take a pic anyway when it's light outside...

crepitus Enthusiast

crepitus

Posted
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How hard was it to do this install, i myself am interested in doing it, after i find a kit of course.

I didnt get a kit just installed a muffler. its not hard to install its hard to find the pipes to make it fit. lucky for me my friend works at a metal shop so he made the transitions and welded it up.

BigJayDogg3 Senior Enthusiast

BigJayDogg3

Posted
Posted
How hard was it to do this install, i myself am interested in doing it, after i find a kit of course.

I didnt get a kit just installed a muffler. its not hard to install its hard to find the pipes to make it fit. lucky for me my friend works at a metal shop so he made the transitions and welded it up.

 

 

 

How come everybody but me seems to have friends that work in shops. :)

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