Originally Posted by hog

Just so you guuys know, the 2003 LB7 Duramax uses a MAFS with a 102 MM diameter.
The 2006 Duramax aircleaner uses the same sensor but its slid into a 123mm bore.

these MAFS can be used in any straight secotion of pipe, you just mkae a hole slide teh MAF into teh hole and fasten teh device securley.
These are much easier to plumb than the standard 99+ truck and LS6 85mm, LT1/LS1/L31 75mm MAFS.

peace
Hog