2001-2007 Duramax LB7/LLY/LBZ 304 Stainless Steel 4" Cat-Back Exhaust (S6004304) EcDiesel 3.0L Runner size does not go

Runner size does not go beyond the size of the exhaust ports on the head because when the runners are larger

We do not recommend this turbo for those looking to tow heavy loads

incorporates a 78mm billet compressor wheel to meet the air demands of the Cat 3406E

These improvements help create a cleaner flow of oil to vital internal components

2001-2007 Duramax LB7/LLY/LBZ 304 Stainless Steel 4" Cat-Back Exhaust (S6004304) EcDiesel 3.0L Runner size does not goBuilt from heavy duty aluminized steel MBRP's Pro Series exhaust systems offer a value price without compromising on the quality build to every componentnt. While the seams are a major pointnt of rust through with some budget systems, MBRP's fully sealed tubing adds years to your system. We back this with a lifetime warranty. MBRP exhaust systems are as much fun to install as they are to drive with on your truck, Bolt on, no weld design makes