2001-2004 LB7 Duramax 2" Stainless Single Turbo Style Pass Side Up Pipe for OEM or WCFab Manifold with Gaskets

A passenger up pipe that holds up

Wehrli replaces the thin, leak-prone factory up pipe with a heavy-duty 2 in. pipe TIG welded from 11 ga stainless, with a stainless bellows that resists cracking.

Wehrli says the larger, better-flowing pipe helps spool and lowers exhaust temperatures.

This passenger-side pipe is shaped to clear a conventional downpipe behind the engine on valley-mount single-turbo trucks. It can also work on a twin setup, but Wehrli recommends its twin-turbo pipe WCF100648 there.

Who it's for

LB7 owners with a leaking passenger up pipe on a single-turbo truck.

Key specs (per Wehrli)

What's included

• Passenger side 2 in. up pipe
• Two up pipe gaskets

Fitment notes

• Fits 2001-2004 Chevrolet Silverado / GMC Sierra 2500 HD and 3500 with the 6.6L LB7 Duramax.
• Not for aftermarket manifolds that move the outlet farther from the head.
• Designed to work with a Wehrli downpipe; factory and other aftermarket downpipes may need modification.
• Replaces GM part number 97302261.
• California: Wehrli does not ship this part to California.

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