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4.8l Muffler

JBAustin10

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JBAustin10 New Member

JBAustin10

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looking to get just a muffler online for cheaper then have a muffler shop weld it on, i want somthing throaty, but besides it being 2 3/4 and out i have no idea what to look for can anyone steer me on exactly what to order

thanks

TearsOfMcCown Enthusiast

TearsOfMcCown

Posted
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I have a 4.8L and i already owned a 3 chamber flow master. I had it but on and the pipe come just over the rear axle where its hidden. I think it sounds great and have had some compliments. Its not real loud either. Idle at a stop sign you cant even hear it. It just sounds great when you open it up. It perfect for someone who wants sound but not the deafening rumble you can get from other exhaust

jhoff8487 Enthusiast

jhoff8487

Posted
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I just ordered a Magnaflow 18" muffler. It should be here today and hopefully if early enough, I'll get it installed this afternoon if not tomorrow. I'll let you know.

JBAustin10 New Member

JBAustin10

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3" inlet Flowmaster Super 44.

 

3" inlet? why to let it slip over the stock piping? and with that go back to a 2.75 outlet or go 3 inch also?

 

to anyone, do any other sizes of the muffler matter to make sure it fits my truck?

thanks

bjweavers New Member

bjweavers

Posted
Posted

I did a DynoMax cat-back exhaust system on my '03 Silverado EXT 4X4 and have been very happy with the results. It consists of a 3" intermediate pipe to the muffler and dual 2 1/2" pipes out the tail. It gives my toy a nice respectable rumble and a few extra horses under the hood as well. I ordered it thru www.SummitRacing.com at a very reasonable price. Also, if you replace the factory air intake box with a high performance air intake, you will get a very noticable increase in HP and improved gas milage as well (if you keep the gas pedel off the floor board :lol: ).

ws6_guy Senior Enthusiast

ws6_guy

Posted
Posted
3" inlet Flowmaster Super 44.

 

3" inlet? why to let it slip over the stock piping? and with that go back to a 2.75 outlet or go 3 inch also?

 

to anyone, do any other sizes of the muffler matter to make sure it fits my truck?

thanks

 

 

Yes. Since the factory pipe is 2.75, and pretty much all mufflers out there are 2.50, and 3", there is no in-between. You could get the 2.5" or 3" whatever you need. The exhaust shop will make it work properly with re-sizing adapters.

 

You can keep the stock 2.75" tailpipe if you wish to, and maybe even add a custom stainless tip for better looks & throatier sound.

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