Factory replacement turbochargers for the 2004 - 2005 Chevy GMC 6.6L LLY Duramax. We have a few options for stock replacement turbos for the LLY Duramax. We offer quality rebuilt/remanufactured turbochargers, either a Flight-Systems brand or our own in-house reman. Or a NEW stock Garrett Turbocharger is available. All Garrett factory replacement turbos come with a 1-year limited warranty.