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Discussion Starter #1
If I install just a Corsa muffler on my 6.0l, will I get a little better MPG? Or does my stock exhuast flow pretty good?

Thanks!
 

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welding it in should be no problem, just because the muffler is stainless steel and your other pipes arent doesnt really affect anything
 

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Mayhem, Like Me
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3,087 Posts
spintech FTW....
 

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Discussion Starter #11
I'm not looking for a loud deep muffler. Just a little growl, but nothing loud when I am on long drives.
 

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Mayhem, Like Me
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yep, if you arent looking for annoying, dont even think about dumping it LOL... it will end up on your nerves after a while.
 

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I have a single chamber IMCO, getting about 20-22 mpg(highway)...on a 4.8. average of about 17mpg city/highway. dumped is loud till up to speed.
 

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Team B.E.E.F hoody hoo
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I just put on two Flowmaster 40's dumped and they sound awesome. Can hear it in the cab, obviously, but does not have a bad drone at all. Haven't seen much of an increase yet, .1 so far but I installed it 2 days ago.
 

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I just put on two Flowmaster 40's dumped and they sound awesome. Can hear it in the cab, obviously, but does not have a bad drone at all. Haven't seen much of an increase yet, .1 so far but I installed it 2 days ago.
you will probably see a much better increase if you went with a better flowing muffler, flowmasters suck
 

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I CANT SPELL GET OVER IT
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i have a 6.0 also my truck is hella loud now because of the cam i am also thinking about spintech
 
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