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

[gooffeyguy]

What does the cut-out do besides make it louder? Does it add power or better mileage or something?

2001 Yukon SLT
2012 Yukon Denali XL
2011 Yukon Denali RIP 5/20/18

 

[Geoffsfas10]

Damn thats the first time I’ve ever seen that paint color (same as mine) that looked good! Did you do your projector retrofit yourself? Makes me wanna dehaze my lights soon!

View attachment 241234

yes, i di them myself. Theres a build thread in the exterior section.

 

[Idriveaho]

I used a rag to clean the plate and around the bore. Cleaned all around that my fingers could reach inside. I used the sea foam spray since I didn’t have tb cleaner. That alone caused the idle to change before I even sprayed the sea foam in the engine. Had the wife try to keep the engine at 2k. She never touched the pedal the idle was so off.

 

[Austinite]

What does the cut-out do besides make it louder? Does it add power or better mileage or something?

2001 Yukon SLT
2012 Yukon Denali XL
2011 Yukon Denali RIP 5/20/18

It pretty much just makes it louder. I just like it because I can go from loud to stock at the push of a button. Like when the wife is in the truck, I have it closed, but as soon as she's gone I open it up and it's like I'm back in highschool firing up my old 56 Chevy.

 

[Idriveaho]

It pretty much just makes it louder. I just like it because I can go from loud to stock at the push of a button. Like when the wife is in the truck, I have it closed, but as soon as she's gone I open it up and it's like I'm back in highschool firing up my old 56 Chevy.

One thing I miss about my Silverado is the straight pipe v8 roar. I had a glasspack on it but the weld rusted off and I never fixed it. I do like having a quiet tahoe in a way for trips with the family so they sleep, but I’m getting tempted to atleast chop off the resonator.

 

[Doubeleive]

Can you clean the TB on the engine... I mean spray it there?

yep no need to take it off

 

[avalonandl]

OK thanks. Haven't looked at mine....kinda afraid given the PO didnt even change spark plugs....

 

[07Burb]

This weekend I installed new MSD coils to replace my stock coils with 224k on them. The burb seems to idle smoother and runs good. She wasn't running poorly before but would idle a little rough on occasion.

I also gave her a good once over as I usually do about every 6 months. Brakes looks good, need an upper ball joint on the passenger side, she needs new tires ASAP #facepalm Overall, she's looking to be in good shape in preparation for summer vacations and such. Hopefully will get the time to do upper ball joints before summer.

 

[Idriveaho]

Got the oil changed at my local Chevy dealer. 59.95 for 6 quarts of dexos approved full synthetic and tire rotate. I do my own work but if I don’t have to get dirty and store used oil and still pay the same price I’ll take advantage of it.

The idle is still a little high but not too much. I think some more driving it will eventually figure it out.

 

[R3cord303]

One thing I miss about my Silverado is the straight pipe v8 roar. I had a glasspack on it but the weld rusted off and I never fixed it. I do like having a quiet tahoe in a way for trips with the family so they sleep, but I’m getting tempted to atleast chop off the resonator.

SLP resonator delete is perfect for that! Looks very nice with the tips too.

 

[07Burb]

One thing I miss about my Silverado is the straight pipe v8 roar. I had a glasspack on it but the weld rusted off and I never fixed it. I do like having a quiet tahoe in a way for trips with the family so they sleep, but I’m getting tempted to atleast chop off the resonator.

Just as an FYI....chopping off the resonator will do very little in the way of adding extra noise or rumble. It'll definitely make everything look better but that resonator does almost nothing and makes no noticeable difference with regard to noise.

 

[89Suburban]

Just as an FYI....chopping off the resonator will do very little in the way of adding extra noise or rumble. It'll definitely make everything look better but that resonator does almost nothing and makes no noticeable difference with regard to noise.

Then why is it on there?

 

[07Burb]

Then why is it on there?

Good question. Same could be asked about the AFM system GM also installed on these vehicles. It, too, is a usually heap of garbage but yet there it is

 

[KBones]

Buffed and coated the truck and winter wheels with Ceramic Pro+. The paint looks wet and 3 feet deep in person.

 

[89Suburban]

Good question. Same could be asked about the AFM system GM also installed on these vehicles. It, too, is a usually heap of garbage but yet there it is

I enter into evidence, from your own very words:

... that resonator .... makes no noticeable difference with regard to noise.

... also improves sound slightly by getting rid of it.

https://www.tahoeyukonforum.com/threads/resonator-delete-pros-and-cons.76509/

 

[07Burb]

I enter into evidence, from your own very words:











https://www.tahoeyukonforum.com/threads/resonator-delete-pros-and-cons.76509/

Notice how I use the word "slightly". Let's consider it VERY slightly. I just didn't want to give anyone false hope that it's going to make any major difference when they're use to having loud trucks in the past.

 

[kbuskill]

This weekend I installed new MSD coils to replace my stock coils with 224k on them. The burb seems to idle smoother and runs good. She wasn't running poorly before but would idle a little rough on occasion.

View attachment 241271


I also gave her a good once over as I usually do about every 6 months. Brakes looks good, need an upper ball joint on the passenger side, she needs new tires ASAP #facepalm Overall, she's looking to be in good shape in preparation for summer vacations and such. Hopefully will get the time to do upper ball joints before summer.

Link to coils?

 

[kbuskill]

Then why is it on there?

The resonator is designed to get rid of drone at certain rpms, like while cruising.

I deleted mine once upon a time but I ended up reinstalling it after completely redoing my exhaust and finding out it had an annoying drone at 60-75 mph... reinstalled resonator, no more drone.

 

[07Burb]

Link to coils?

https://www.summitracing.com/parts/msd-55118

 

[Doubeleive]

Lubed the front and rear sway bar bushings with some marine grade lithium grease, that eliminated some of the noise something is still noisy either the control arm bushings or the struts