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Discussion Starter · #1 ·
Hey everyone! I live in Colorado and was thinking about doing a muffler delete on my 06 5.9. Could not find any emissions laws to see if I would fail emissions because of visual inspection. Thanks!
 

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2011 Ram 2500 4x4 6.7 68RFE 4 inch lift
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You have a CAT in the down pipe, so changing the muffler will be fine.
 

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hydraulic lifter crew
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wouldn't the 06 have the same set up as the 04.5 early 07..? with the football cat, post downpipe? there's nothing inside the factory downpipe except soot.
 

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2011 Ram 2500 4x4 6.7 68RFE 4 inch lift
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I’m sorry, I got this mixed up. Never mind what I wrote.
 

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hydraulic lifter crew
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are you asking if there is a chance of failing a visual, during the yearly inspection, if you remove the cat?
 
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wouldn't the 06 have the same set up as the 04.5 early 07..? with the football cat, post downpipe? there's nothing inside the factory downpipe except soot.

^^^ This is correct.

Jacobstrom, if your catalytic converter is gone, you won't pass a visual emissions test.

Deleting the muffler won't affect an emissions test but the truck will be loud and they may ding you on that.
 

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Discussion Starter · #10 ·
^^^ This is correct.

Jacobstrom, if your catalytic converter is gone, you won't pass a visual emissions test.

Deleting the muffler won't affect an emissions test but the truck will be loud and they may ding you on that.
Ya I was going to keep my cats on and just remove muffler
 

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Ya I was going to keep my cats on and just remove muffler
You can go with a less restrictive muffler. No muffler's going to be loud and negatively yours and other's hearing. Take it from an old coot,protect your hearing. It's a cumulative loss starting from adolescence. Loud's obnoxious not power enhancing.
 

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Usually visual means it needs to have whatever it came with new.
 
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Clayton @ DDP Motorsports
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Like @tryNto stated it does depend on how strict your inspection place is but some places if they don't see what it had as factory that actually knows what they are looking at they will fail you. i havent seen this too often but they are out there. Most of the time from what i have been told you "shouldn't" have a problem without a muffler but like stated above, they may ding you for the noise if they realize that it sounds different then the others.
 
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