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

YukonHog · Mar 28, 2023

Monz11 said:
Just get the sizes, etc. and you can look on Ebay, etc. I bought an Alpine X308, and the surround to fit. I went directly to both Alpine and Panasonic sites to find out what would fit

What do you like/dislike about the Alpine 308 system? Did you have to get the XM tuner adapter for satellite radio to work?

CaptainAmerica1 · Mar 28, 2023

Mickey_7106 said:
Also, years ago I remember someone doing a write up for modifying the stock airbox and inner fender to allow more air to flow through? Does that sound familiar?
View attachment 395562

Doubleive (sp) or iamdub posted some details on this air box mod and I happen to have the photos saved, diving into this tomorrow believe it or not… I hope whomever it was doesn’t mind me sharing his photos…

CaptainAmerica1 · Mar 28, 2023

Added my Husky mud guards, exact contour floor liners, replaced my under radio console thingy, with the traction control button in it.

gooffeyguy · Mar 28, 2023

Mickey_7106 said:
Also, years ago I remember someone doing a write up for modifying the stock airbox and inner fender to allow more air to flow through? Does that sound familiar?
View attachment 395562

Waste of time removing that sheet metal and plastic on the airbox unless you plan on adding much more horsepower

iamdub · Mar 28, 2023

gooffeyguy said:
Waste of time removing that sheet metal and plastic on the airbox unless you plan on adding much more horsepower

Agreed. Total "just 'cuz" thing. But replacing that crappy factory seal IS an improvement.

iamdub · Mar 28, 2023

Mickey_7106 said:
Also, years ago I remember someone doing a write up for modifying the stock airbox and inner fender to allow more air to flow through? Does that sound familiar?
View attachment 395562

Mine starts here: https://www.tahoeyukonforum.com/threads/growing-up-doesnt-have-to-suck.93510/post-1451013

As @gooffeyguy pointed out, you can't expect any power gains from opening up that hole. If anything, you'd get a small boost from better insulating the air box by replacing that seal. Still, likely nothing you'd feel. But I've seen a huge improvement comparing my before and after IATs so at least that part is a valid mod.

Sparksalot · Mar 29, 2023

CaptainAmerica1 said:
Doubleive (sp) or iamdub posted some details on this air box mod and I happen to have the photos saved, diving into this tomorrow believe it or not… I hope whomever it was doesn’t mind me sharing his photos…

I think it was @iamdub . I did the same on mine, and it worked well.

gooffeyguy · Mar 29, 2023

If you're going to cut out the box and sheet metal opening, don't forget to remove the front bumper cover to gain access to the inside of that area and open up/remove these louvers that's restricting airflow into that area also

/sarcasm

RooTBeeRthe1st · Mar 29, 2023

iamdub said:
Mine starts here: https://www.tahoeyukonforum.com/threads/growing-up-doesnt-have-to-suck.93510/post-1451013

As @gooffeyguy pointed out, you can't expect any power gains from opening up that hole. If anything, you'd get a small boost from better insulating the air box by replacing that seal. Still, likely nothing you'd feel. But I've seen a huge improvement comparing my before and after IATs so at least that part is a valid mod.

Is that 2" square foam?

Sparksalot · Mar 29, 2023

RooTBeeRthe1st said:
Is that 2" square foam?

That’s what I used

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

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