TruckTok 2011-2016 6.6L GMC Chevy Duramax Diesel LML EGR Valve Cooler Delete Kit

FITMENT

• 2011-2016 6.6L Chevy GMC Duramax LML 2500 HD 3500 HD Diesel.
  

DESCRIPTION

Product Overview

• The 2011–2016 LML Duramax uses a complex EGR system that constantly recirculates abrasive exhaust soot back into your clean intake, mixing with oil to form a thick, engine-choking sludge. Over time, extreme thermal cycles cause the internal cooler passages to crack.
  
• Once cracked, coolant leaks directly into your intake, leading to mystery coolant loss, white smoke, or even catastrophic engine hydrolock. This heavy-duty kit completely removes the failure-prone cooler assembly to safeguard your engine and restore its breathability.

• Premium Billet & Stainless Steel Build: Features a CNC-machined anodized aluminum intake plate and heavy-duty stainless steel exhaust plate.
  
• Zero Carbon Soot Build-Up: The factory EGR recirculates abrasive soot back into clean intake air. Blocking this cycle prevents thick, oily sludge from clogging intake manifold and grid heater.
• Lower EGTs & Coolant Temps: By stopping hot exhaust gas from recirculating, this kit drops Exhaust Gas Temperatures. Additionally, our custom coolant hose accelerates flow to lower overall engine temperatures.
• Quicker Turbo Spool & Response: Sealing off the factory EGR bypass leaks routes 100% of exhaust gas directly through the turbocharger, enabling faster boost buildup and sharper throttle response.

FAQ

Q: Does this kit require complete removal of the EGR coolers, or is it just a blocking kit?

A: It is a complete cooler removal kit. This kit completely remove the entire, bulky dual-cooler assembly from your engine bay. This clears up massive amounts of space on the passenger side of the motor, making future maintenance much easier.

Q: How does deleting the EGR improve my truck's performance?

A: The factory EGR valve continually bleeds off valuable exhaust pressure. By removing this system and sealing it with block-off plates, the exhaust gas is routed directly to the turbocharger, eliminating turbo lag and making acceleration much sharper.

Q: Why should I replace the passenger-side up-pipe during an EGR delete?

A: To prevent exhaust leaks and clean up the engine bay. The factory up-pipe has a bulky branch (EGR riser) that becomes useless once the EGR is deleted. Swapping to a up-pipe eliminates this failure-prone branch entirely, preventing future cracks and exhaust leaks.

Q: Why does this kit include a "3-terminal (Y-shaped)" coolant hose?

A: The factory EGR coolers run engine coolant to cool exhaust gases. When removed, our custom 3-terminal hose perfectly links the factory heater core and engine coolant ports together, ensuring a leak-free bypass with zero cooling issues.