Replaces the factory Duramax exhaust up-pipes (exhaust manifold to the turbo) which are prone to leakage due to the deterioration. BD LB7 up-pipes are designed to minimize restriction to the turbo utilizing internally shielded expansion bellows. The BD LB7 up-pipes are a durable, longer-life replacement for this common problem and are perfect as an upgrade while performing other engine or transmission repairs.
FEATURES
304 stainless steel precision cast mounting flanges eliminate exhaust tubing blowouts and ensures correct fitment
304L 2-inch stainless tubing prevents loss of heat energy and will not corrode like aluminized steel or 409 stainless
Larger bore (1.8 ID) internally shielded 304 stainless bellows, eliminates restrictive 1.3 ID OEM bellows maximizing exhaust energy to drive turbocharger
Smooth mandrel bends improve exhaust gas flow tubing ID is not compromised
Increased turbo response with lower EGTs
User must have aftermarket downpipe, does not fit with OE Downpipe
INSTALL TIME
5 Hours
WARRANTY
Parts
12-Months
24,000 Miles
Note
Surface rust not eligible
NOTE
Aftermarket downpipe required Some modification necessary
Not for sale on licensed California vehicles