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

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992dr

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Thanks guys, I couldn't tell if it was a 12289 or 12589.

Why has everyone chosen the 12589? I was looking at the 12289, its 2" longer the 589.
How much tubing is needed to fill the gap and what size tubing are you using?
Thanks
 

Snacky

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Been waiting 3 months to get back to the office with my new ride so I can pull up next to my boss and snap this pic :)
 

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Goodinblack

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Thanks guys, I couldn't tell if it was a 12289 or 12589.

Why has everyone chosen the 12589? I was looking at the 12289, its 2" longer the 589.
How much tubing is needed to fill the gap and what size tubing are you using?
Thanks

Because thats a 5x8 body

If you add up the volume the length is not making up for the width

So the 12589 still has more packing and thus quieter
 

Joshin33

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Well, it was yesterday but ordered my new leveling kit. Went the adjustable route from 1"-2" so I can adjust for the Cali-lean if 2" is too high.
 

Fink117

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Mufflers going on Friday 10am. Looks like I need to buy a welder and start learning to do it myself.
 

08grey

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