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2001-2007 GM 6.6L DURAMAX - 5" DOWNPIPE BACK ALUMINIZED
2001-2007 GM 6.6L DURAMAX - 4" DOWNPIPE BACK ALUMINIZED
2001-2007 GM 6.6L DURAMAX - 5" DOWNPIPE BACK STAINLESS
2001-2007 GM 6.6L DURAMAX - 4" DOWNPIPE BACK STAINLESS