2001–2016 Duramax LML Up-Pipes | Pre-Turbo Leak Fix | Chevy/GMC 6.6L

2001–2016 Chevy / GMC Duramax 6.6L LML Up-Pipes (EGR Delete-Style) | Reliability + Spool Upgrade

When you’re deleting the EGR on an LML, the factory up-pipes become the weak link. These EGR delete-style up-pipes clean up the hot-side routing by eliminating the EGR feed takeoff and replacing a common leak-prone OEM component—so your Duramax stays tighter, spools cleaner, and tows more consistently.

Why Sasquatch Customers Add Up-Pipes With an EGR Delete

• Eliminates the EGR port (no block-off plate/gasket stack to seep or warp over heat cycles)
• Pre-turbo leak prevention—up-pipe leaks dump drive pressure before the turbo and can cause lazy spool, soot smell, and inconsistent boost
• More consistent towing performance—keeping exhaust energy where it belongs helps maintain steadier boost and EGT control under load
• “While you’re in there” labor savings—doing up-pipes during EGR removal avoids tearing it back apart later
• Cleaner, simpler hot-side setup—fewer sealing surfaces, fewer headaches

Benefits

• Helps reduce common exhaust soot leaks and ticking under load
• Supports quicker turbo response versus leaking/aging factory pipes
• Improves reliability for work trucks and tow rigs
• Ideal pairing with an EGR delete for a cleaner hot-side configuration

Fitment

• 2011–2016 Chevrolet Silverado / GMC Sierra 2500HD / 3500HD
• 6.6L Duramax LML

What’s Included

• Up-pipe set (driver + passenger)
• Any included sealing components/hardware are kit-dependent (see package contents on this listing)

Notes

• Up-pipes are a physical hardware upgrade—they do not “tune” the truck by themselves.
• If you are performing an EGR delete, proper calibration/tuning may be required depending on how your truck is configured.

OFF-ROAD / COMPETITION USE ONLY NOTICE

Some products are intended for off-road/competition use only on vehicles that are not operated on public roads. The customer is responsible for complying with all applicable federal, provincial/state, and local laws and regulations. By purchasing, you confirm the vehicle’s intended use is lawful for your jurisdiction and application.

SasquatchDiesel.ca — no fluff, no gimmicks. Just proven parts that keep your LML tight, reliable, and ready for work.