What did you do to your NBS GMT800 Tahoe/Yukon Today?

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DPGDirk

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Got my Speed Engineering headers, ORY and MBRP cat back installed today.

What sucks is that BOTH of the rearward exhaust manifold bolts were broken off and had to pull the heads to drill and EZ-Out these bolts.

One expensive exhaust upgrade...
 

Countryboy07

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Got my Speed Engineering headers, ORY and MBRP cat back installed today.

What sucks is that BOTH of the rearward exhaust manifold bolts were broken off and had to pull the heads to drill and EZ-Out these bolts.

One expensive exhaust upgrade...

That sucks! Are you happy with the results though? That's the true question! Also ... We need a sound clip ASAP
 

DPGDirk

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That sucks! Are you happy with the results though? That's the true question! Also ... We need a sound clip ASAP
Had a buddy do the work for me. Gotta pick it up today.

Still have to retune via BBP Autocal too. He said it's louder. I have no doubt about that. Gonna have to drive it and see if I'm gonna be OK with it, or if I'll want to install a quieter muffler...
 

clandr1

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MinnYukon

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Blacked out my rear badge.

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Sent from my iPhone using Tapatalk
 

DPGDirk

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That sucks! Are you happy with the results though? That's the true question! Also ... We need a sound clip ASAP
The new LT headers and exhaust sound really sweet. Nice throaty sound at idle- definite improvement. Definitely louder under power, but very tolerable from inside with no drone. Not sure how loud it is from the outside. Significantly louder, but hard to tell from inside.

Be interesting to see how she runs after the retune. No loss of power at all at this point- runs stronger, in fact. Breathes noticeably better than before. Seems effortless at cruising speeds...
 

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