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Which Magnafow for 2010 with the 5.3 14" or 18"?

muledeer

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muledeer Enthusiast

muledeer

Posted
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I have a 2010 with the 5.3 and been doing a bunch of research and think I have decided on the Magnaflow muffler which I will have the stock muffler cut out and have the new one welded in place. I can't decide between the 14" or the 18" What do you guys think if it was your choice?

 

Thanks for the input.

kstruckcountry Senior Enthusiast

kstruckcountry

Posted
Posted

I have the 22" by 5" by 11" on my 2006 5.3. It sounds great cruising in town and accelerating. I don't hear it at all cruising at highway speeds though. I used to have a round body 14", but the 22" is far better on the highway.

 

Which one you go with depends on what kind of driving you do and what sound you want from it.

Carder09 Senior Enthusiast

Carder09

Posted
Posted

14", loudest, 18", in between, and 22", not as loud. When I get back, I plan on getting the 14" muffler, center in, center out, 2.5" in/out .

Tweeter400 Enthusiast

Tweeter400

Posted
Posted

I have the 18" and it sounds good, but drones on the highway. I have an extended cab truck and the muffler is right below the passenger floorboard.

travishale84 Enthusiast

travishale84

Posted
Posted

I had the 14" magnaflow for my first setup, it was mellow sounding at idle but even at cruising speeds the drone drove me nuts. if i ever go back to magnaflow it will be with their 18" case. IMO the 14" droned as bad as a flowmaster 40 series

muledeer Enthusiast

muledeer

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The reason I was leaning towards magnaflow was all of the positive feedback I had read about not having any Drone issues with the 5.3, I have the 2010 Crew with the 5.3 and starting to lean towards the 18"

Roscopcoletrain Senior Enthusiast

Roscopcoletrain

Posted
Posted

I tossed the 22" on mine. Quiet at idle, quiet on the highway, but deeper then stock when you stand on it. Sounds good. Probably too quiet for anyone who wants aggressive sound.

 

Sent from my Nexus S

grizzly700fi Enthusiast

grizzly700fi

Posted
Posted

I got the 14" and love it. It has a nice rumble at all rpm's. It does drone on the highway but the radio can easily cover it. If you want absolutely no drone get 22" if you want nice sound when you get on it get the 18" and if you want good sound all the time and get loud when you step on it get the 14"

muledeer Enthusiast

muledeer

Posted
  • Author
Posted

Thanks guys for the feedback, I appreciate it. Still trying to decide...

oldscsc Enthusiast

oldscsc

Posted
Posted

18" here, welded in place of the stock muffler. Quiet at idle, silent at cruising, but you can tell it's got some rumble when you're accelerating. No drone, either.

  • 4 weeks later...
muledeer Enthusiast

muledeer

Posted
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Well i ended up ordering the 14", I hope I don't regret it. My Son talked me into the 14 over the 18.

muledeer Enthusiast

muledeer

Posted
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Posted

Put the 14" on and I don't like it. The drone at cruising drives me knuts. I think I will order the 18 and put the 14 up for sale.

Tweeter400 Enthusiast

Tweeter400

Posted
Posted

Put the 14" on and I don't like it. The drone at cruising drives me knuts. I think I will order the 18 and put the 14 up for sale.

 

 

I have the 18" dual in/dual out, and at 70mph, it still drones the cab like crazy. Put a trailer behind it, and forget about talking to the person next to you.

My wife has been begging me to put something else on. It drones more than my true duals with glass packs did. The glass packs "sing" with true duals, the magnaflow is just an annoying drone.... :nonod:

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