'03RedMonster
06-06-2003, 07:16 PM
When I got my muffler installed the guy said I had 2.75" stock pipping. But I thought it was 2.5" stock? Has it always been 2.75" on the NBS vortecs or did they recently change this for '03 or something:confused:
View Full Version : Stock piping size
J to the izA
06-06-2003, 08:17 PM
2.75 on NBS
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