Fleece Performance Replacement Transmission Line (Long) 01-10 GM Duramax LB7-LMM CSF-7105 The included tubes are powder-coated

The included tubes are powder-coated wrinkle black and are constructed of mandrel-bent aluminum for maximum airflow

Carli experimented with several options

These are a retrofit and do not require the use of the cooling manifold

you may choose the "Cooler Only" option

while there are many other tuners on the market that make the same power (if not more) than a Smarty

Fleece Performance Replacement Transmission Line (Long) 01-10 GM Duramax LB7-LMM CSF-7105 The included tubes are powder-coatedFleece Performance offers a replacement transmission line for those sneaky leakers on your 2001 2010 Duramax LB7, LLY, LBZ and LMM applications. This is the long line frome the cooler to the transmission. Keep your transmission fluid on the inside instead of the garage floor. Your wallet will thank you.