***DO NOT FIT AVALANCHE!***
No EGR.
These headers have 1 3/4" primaries and a 3" collector.
The Y is also 3".
Fits 1999-2006 4.8L and 5.3L
2WD & 4WD
FITS AWESOME
SOUNDS GREAT
The headers will fit the 6.0 but the Y will have to be modified.
They also fit the 07 Classic.
APPLICATIONS: ( COMPATABILITY )
1996-2006
SILVERADO
SUBURBAN
SIERRA
TAHOE
YUKON
