What did you do to your NNBS GMT900 Tahoe/Yukon Today?

[PG01]

Alright... this is the final rendition of the exhaust on the Burb.... I swear.... at least this week... lol


I ended up having them add the factory resonator back in at the tail to get rid of the awful drone it had at 60 MPH. This did the trick... no drone at 60, 70, or 80 mph on the interstate. It also toned it down a bit inside through out the RPM band although it doesn't seem that much different outside.

The best part about it was they didn't charge me for cutting and welding the resonator back in... so win, win for me.

I also have the dealer accessories optional chrome BOWTIE tip if anyone is interested check the classified section...
View attachment 218529
View attachment 218530

Questions, comments, criticism, all are welcome.

Question- do you like it?
Comments- thats all that matters
Critics- f ‘em



Ps- sounds good

 

[kbuskill]

Question- do you like it?
Comments- thats all that matters
Critics- f ‘em



Ps- sounds good

Thanks...

I do indeed like it better than before. It was too loud before, for a family/luxury truckster.... maybe I'm just getting old... lol

 

[Chrismnj]

Alright... this is the final rendition of the exhaust on the Burb.... I swear.... at least this week... lol


I ended up having them add the factory resonator back in at the tail to get rid of the awful drone it had at 60 MPH. This did the trick... no drone at 60, 70, or 80 mph on the interstate. It also toned it down a bit inside through out the RPM band although it doesn't seem that much different outside.

The best part about it was they didn't charge me for cutting and welding the resonator back in... so win, win for me.

I also have the dealer accessories optional chrome BOWTIE tip if anyone is interested check the classified section...
View attachment 218529
View attachment 218530

Questions, comments, criticism, all are welcome.

I think is just right

 

[PG01]

Thanks...

I do indeed like it better than before. It was too loud before, for a family/luxury truckster.... maybe I'm just getting old... lol

X2

 

[Tonyrodz]

Thanks...

I do indeed like it better than before. It was too loud before, for a family/luxury truckster.... maybe I'm just getting old... lol

Lol, imagine if you had mine! I think it sounds great. I like it.

 

[swathdiver]

Alright... this is the final rendition of the exhaust on the Burb.... I swear.... at least this week... lol

Man, that sounds like Lieutenant Bullitt's Mustang! Sweet!

Ok, so give us run down of what you did from the heads to the tailpipe again to recap.

 

[kbuskill]

Man, that sounds like Lieutenant Bullitt's Mustang! Sweet!

Ok, so give us run down of what you did from the heads to the tailpipe again to recap.

JBA shorty (cat4ward) headers with titanium ceramic coating.


Custom 2.25" Catless Y-pipe which comes back about 1.5' - 2' further than stock before it Ys together.


Magnaflow XL 3 chamber stainless steel muffler part #13749. Case length 30". Overall length 36".

Factory tail pipe with factory resonator reconfigured to exit out the rear through a 4" stainless tip.






I was going to post pics of each section of the exhaust but then I remembered that my SD card got corrupted and I lost all those pics. So I just posted some shots of the tip and resonator I took today.

***EDIT***
I went back through my posts and downloaded my own pics so that I can have them on my new SD card... lol

I will repost this post with pics included as I already have to many pics in this one.

Coming out the back kinda makes it look like it has the 6.2L... only someone from this forum would recognize that though... lol

 

[kbuskill]

Also forgot to mention I got my new hoses made up today for my dual remote mount oil filter setup and oil cooler....





They are hydraulic lines with swivel threaded ends.

My only concern is the 212° max operating temperature but I have never seen my oil temp over 210° (after WOT pulls) and it usually sits about 205° when idling. Probably cooler when cruising due to more airflow over the oil cooler.

I figure that the maker probably tested it to higher temps and chose a safe number to list as spec. I seriously doubt that at 213° it fails.

The guy making the hose for me told me he makes them as oil lines for tractors and stuff all the time with no issues.

Hopefully this will alleviate the very minor leak I have. It's so minor that it doesn't even leave any drips on the ground but it's enough to annoy me just knowing it's there.

 

[97audia4]

JBA shorty (cat4ward) headers with titanium ceramic coating.


Custom 2.25" Catless Y-pipe which comes back about 1.5' - 2' further than stock before it Ys together.


Magnaflow XL 3 chamber stainless steel muffler part #13749. Case length 30". Overall length 36".

Factory tail pipe with factory resonator reconfigured to exit out the rear through a 4" stainless tip.


Coming out the back kinda makes it look like it has the 6.2L... only someone from this forum would recognize that though... lol

This has me excited to have my 6.2 back after the long tubes and ORY are installed. I am keeping the factory muffler and resonator too as I heard most people delete it complain of the drone. I tow 6 to 8 hours at a time and dont want to deal with that.

 

[kbuskill]

This has me excited to have my 6.2 back after the long tubes and ORY are installed. I am keeping the factory muffler and resonator too as I heard most people delete it complain of the drone. I tow 6 to 8 hours at a time and dont want to deal with that.

Yeah the ORY not having cats will definitely increase the volume/growl from that bad boy. I will be interested to hear it through the factory muffler and resonator as well. Please be sure and post a video when you get it back.