The Fleece FPE-DTFL-VNT Remote Turbocharger Oil Feed Line Kit for your 2004.5-2010 GM 6.6L Duramax provides more oil to your turbocharger which is especially important in high performance applications. The current oil feed for your turbocharger is supplied off of the #4 cam journal bearing, which can lead to pre-mature bearing wear or failure. Feeding your turbocharger from the oil rifle on the block, ensures adequate supply and prevents failures. Remote feeding the turbo is especially important with high strung factory replacement turbos, like the Fleece Performance Cheetah or Garret's 3794VA & 4094VA turbos.