The factory up-pipes on the 2004.5-2007 6.0L Power Stroke are prone to leakage from the exhaust manifold up to the turbo as a result of deterioration. BD's up-pipes are designed to minimize restriction up to the turbo by utilizing internally shielded expansion bellows. The Y-adapter is made from high-silicon ductile iron. The up-pipes are a durable and longer-life replacement for this failure-prone part on the Power Stroke. They also make a great upgrade when you're performing other engine or transmission repairs. For more information, call 800-887-5030 or visit www.bddiesel.com.
Photo credited to BDDiesel.com