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

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1BADI5

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Just got off the phone with Stainless Works headers. They have headers 1 3/4 going into 2 1/2 collectors . And SW won't make the 1 7/8 into 3" collectors that I will need for a supercharger application. I like the 3"dual exhaust they make for they're headers. But this 1 3/4 into 2" collector is NG for me. CRAP

Here we go again.. everything is a hassle.

Then order a set from Texas Speed. Mine are 1 3/4 and 3" collectors, but friendly on the bank account. I've had mine on the truck for almost a year now.
 

the_tool_man

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Does anybody know the size and length of the bolts that connect the exhaust manifolds to the OEM Y-pipe? 6.2L if that matters. I want to have new ones in hand for repairing the broken manifold bolt.

EDIT: I found someone saying NBS use M10x1.5. Can anyone confirm for NNBS?
EDIT 2: Never mind. Rock Auto sells a replacement kit. The studs are M10x1.5 x 62mm long. I'll pick up some stainless bolts and nuts just in case.
 
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gat0r

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Just got off the phone with Stainless Works headers. They have headers 1 3/4 going into 2 1/2 collectors . And SW won't make the 1 7/8 into 3" collectors that I will need for a supercharger application. I like the 3"dual exhaust they make for they're headers. But this 1 3/4 into 2" collector is NG for me. CRAP

Here we go again.. everything is a hassle.


thats odd that they only have 1 3/4 w/ 2 1/2 collectors. is that a platform thing?

b/c for the k2xx they have 1 7/8 w/ 3 collector
/shrug


Kooks has 1 7/8 w/ 3 collector but it goes into 1, not true dual
looks like they have true dual options for other vehicles, so maybe an option
or you could change that on your own though
 

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