Just an FYI, the group buy is ending soon so if you want in you have to act now! They'll be either $650 or $600 (we need like 5 more people to get the lower price), and afterwards they'll be $960.

HEADERS 5.3L LS4 FRONT WHEEL DRIVE HEADER 2005-2009 IMPALA SS/ MONTE CARLO/ GRAND PRIX GXP/ LA CROSS at Doug Thorley Headers dougthorleyheaders.com