Ontario CA / Springdale OH / Newark NJ

• Coated Intake Elbow
• Blocker Plate Gasket
• Exhaust Blocker Plate
• M10-1.25x40 manifold bolts (x4)
• Coolant Plug with 0-Ring (x2)
• M10-1.125x20 plate bolts (x2)
• M6-1.25x25 intake elbow bolts (x4)
• Hose Routing Clips (x2)
• Plug Bolts (x2)
• Intake Elbow 0-Ring
• Stud Spacer
• Barbed Hose Connection

FAQ：EGR Valve Cooler Delete Kit for 2017-2025 Chevy/GMC Duramax 6.6L L5P

Q1: What tools are required to install this EGR delete kit?

A1: Installation requires basic hand tools (socket set, wrenches, pliers), safety gear (gloves, goggles), and a DPF delete-capable tuner to prevent check engine lights/diagnostic codes. All mounting hardware is included for a direct bolt-on fit.

Q2: What performance benefits can I expect after installation?

A2: Key improvements include:

• Faster turbo spool and throttle response due to reduced exhaust backpressure
• Lower exhaust gas temperatures (EGT) and improved fuel efficiency
• Elimination of carbon buildup in intake/EGR valve, preventing clogs and coolant leaks
• Enhanced engine reliability with billet aluminum/stainless steel components

Q3: Is this kit compatible with my vehicle?

A3: Fits 2017-2025 Chevy/GMC Duramax 6.6L L5P engines in Silverado/Sierra pickups. Excludes Cab & Chassis trucks and non-L5P variants. Verify engine code (L5P) before purchase.

Q4: How long does installation take?

A4: Installation takes approximately 2 hours with basic tools. Professional installation recommended for first-time installers. Kit includes all seals, hoses, and hardware—no additional parts needed.

Q5: Will deleting the EGR system affect my warranty or emissions compliance?

A5: Warranty: Modifying emissions systems (including EGR deletion) may void factory warranty coverage. Emissions: For off-road/competition use only. Federal/state laws prohibit disabling emissions controls on public roads—check local regulations.

Q6: What makes this kit different from competitors?

A6: Our kit features:

• 30% faster coolant recirculation vs. stock systems
• Corrosion-resistant materials: Billet aluminum, nickel-plated flanges, zinc-coated hardware
• Complete solution: Includes silicone hoses, o-rings, and stainless steel dipstick bracket
• Engineered precision: CNC-machined for leak-proof operation under high temperatures

Q7: Can I clean my EGR system instead of deleting it?

A7: While cleaning is possible, deletion permanently solves issues like carbon buildup, coolant leaks, and reduced efficiency. This kit provides a long-term solution for reliability-focused owners.

Q8: Where are the catalytic converters located on the L5P?

A8: Catalytic converters are in the exhaust system, typically between the manifold and muffler. A missing converter may trigger DTC P0420. This kit focuses on EGR/cooler removal—catalytic converters remain intact unless separately modified.

Q9: Will I need a tuner for installation?

A9: Yes, a DPF delete-capable tuner is required to prevent CEL/DTC codes. Standard tuners may not support emissions system modifications.

Q10: How does this kit improve maintenance costs?

A10: By eliminating EGR-related issues (clogs, leaks, coolant contamination), owners save on recurring repairs. The durable components reduce long-term maintenance needs, providing a cost-effective upgrade for performance/fleet use.