Emissions. 2016 2500HD. - Chevy and GMC Duramax Diesel Forum
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post #1 of 4 (permalink) Old 01-07-2020, 11:58 PM Thread Starter
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Emissions. 2016 2500HD.

Hello.

My Dad has a 2016 2500HD GMC. while ago did a delete kit with a 5 inch exhaust and GDP TUNE. Love everything about it but eventually got sick of the diesel smell that’s just awful and can smell from a mile away. Is there anyway I can get the emissions back on and everything, will that get the smell away. Personal Mechanic that did it all threw all the stuff away. Wondering where I can get everything and if this will all help the smell or do i have to get a stock exhaust as well. The Tune from GDP will still work with emissions as well so that’s fine
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post #2 of 4 (permalink) Old 01-08-2020, 04:10 AM
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if you put the cat back on,that will kill the smell.
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2002 GMC 2500HD, ECSB, 4WD, LB7
new style gm exhaust manifold, banks big head wastegate, PPE boost valve, banks air intake,high idle switch in cruise control, stock but not for long
EFI live tuned by me now,dps5 switch,EGT probe and autometer boost sensor,SoCal 6spd conversion

2016 GMC Denali stock for now
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post #3 of 4 (permalink) Old 01-08-2020, 03:09 PM
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Search craigslist for an exhaust or call some local shops and find the CAT and put it back on.

2016 LML Denali 2500
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post #4 of 4 (permalink) Old 01-08-2020, 10:33 PM Thread Starter
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Will the stock cat fit onto the 5 inch FLO PRO?
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