2001-2004 LB7 Duramax 2" Stainless Single Turbo Up Pipe Kit for OEM or WCFab Manifolds w/ Gaskets

Up pipes that hold up

The factory LB7 up pipes are thin 1-5/8 in. tubes that tend to leak. Wehrli replaces them with heavy-duty 2 in. pipes TIG welded from 11 ga stainless, with stainless bellows that resist cracking.

Wehrli says they help spool and lower exhaust temperatures.

This set is for single-turbo trucks and fits only the factory exhaust manifolds or Wehrli billet manifolds (WCF100363).

Who it's for

LB7 owners with leaking factory up pipes on a single-turbo truck.

Key specs (per Wehrli)

What's included

• Driver side 2 in. up pipe
• Passenger side 2 in. up pipe
• Four up pipe gaskets

Fitment notes

• Fits 2001-2004 Chevrolet Silverado / GMC Sierra 2500 HD and 3500 with the 6.6L LB7 Duramax.
• Designed to work with a Wehrli downpipe; factory and other aftermarket downpipes may need modification.
• Replaces GM part numbers 97223167 and 97302261.
• California: Wehrli does not ship this part to California.

Professional install available at Powertech Diesel, Idaho Falls — call 208-542-7793.