FITMENT
- 2011-2016 6.6L Chevy GMC Duramax LML 2500 HD 3500 HD Diesel.
DESCRIPTION
Product Overview
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Sticky intake sludge and dangerous internal coolant leaks threaten the power, efficiency, and survival of 2011–2016 LML Duramax engines. Thermal fatigue causes the factory EGR cooler to crack internally, dumping coolant straight into your intake tract while abrasive exhaust soot cakes the manifold in power-robbing sludge.
- Protect your engine from costly internal failure with this complete LML EGR Valve & Cooler Delete Package. By removing the weak factory cooler and capping off open ports with heavy-duty block-off plates, it permanently stops coolant loss into the intake, eliminates turbo-choking carbon buildup, and ensures your engine receives only cool, dense air.
Key Features
- Pairs a CNC-machined anodized aluminum intake plate with a heavy-duty stainless exhaust plate.
- Blocks dry, abrasive soot from the intake, stopping the concrete-like sludge in the manifold and grid heater.
- Restores quick spool by sealing the exhaust pressure leaks from the EGR bypass, sending exhaust straight through the turbo.
- Eliminates coolant loss, white smoke, and hydrolock by removing the coolers and rerouting the coolant lines safely.
FAQ
Q: How does removing the coolers help future maintenance?
A: The bulky dual-cooler assembly sits right on top of key parts. Lifting it out opens up the passenger side of the engine, making injector, glow plug, and up-pipe service far easier.
Q: What are the black anodized T-fittings and brass fittings for?
A: They reroute the heater-core and coolant lines. The heavy-duty anodized fittings and brass adapters let you cleanly splice, plug, or reroute coolant sensors and lines so heating and cooling keep working post-delete.
Q: What are those two black oval plates with O-rings?
A: They’re the CNC-machined block-off plates. In anodized billet aluminum, they seal the open intake and exhaust ports left after the factory EGR valve and cooler piping come off.
Q: How does this drop coolant temps faster?
A: The stock coolant grinds through the restrictive dual-cooler chambers. Removing them and using the high-flow bypass lets coolant circulate much quicker, lowering overall temps and steadying high-load towing.
