i haven't heard of supplier being accepted. only GMS.............
i know one of my local dealers will only do GMS......no supplier.
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IOM 2SSRS LS3 R6P - VIN 7553 Delivered 5/22/2009 Kooks, Corsa and Roto-Fab - SOLD 9/2010
VR 2SSRS LS3 - Borla, SLP CAI