FITMENT
- 2006-2007.4 Chevrolet Silverado Duramax LBZ 2500HD / 3500HD.
- 2007.4 Chevrolet Silverado Duramax LBZ 2500HD / 3500HD Classic.
- 2006-2007.4 GMC Sierra Duramax LBZ 2500HD / 3500HD.
- Note: Does not fit Cab & Chassis commercial trucks or later LMM engines.
DESCRIPTION
Product Overview
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The 6.6L Duramax LBZ engine is renowned for reliability, but its factory EGR system is a major point of failure. The stock EGR valve and cooler constantly dump hot, soot-heavy exhaust into your intake air stream, creating a sticky sludge that chokes airflow, spikes coolant temperatures, and triggers check engine lights.
- The 6.6L Duramax LBZ EGR Delete Kit completely seals off exhaust recirculation. By feeding your LBZ engine clean, cool air, it sharpens throttle response, lowers towing EGTs, improves fuel efficiency, and preserves long-term engine life.
Key Features
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Precision Heavy-Duty Construction: Features CNC billet aluminum plates, stainless steel hardware, and high-temp silicone coolant hoses built for extreme heat and boost pressure.
- Improves Throttle Response & Turbo Spool: Restores clean, dense oxygen flow to V8 engine, sharpening throttle response and reducing low-RPM turbo lag.
- Sharply Lowers Towing EGTs & Coolant Temps: Stops recirculating scorching exhaust gases back into combustion chambers, helping keep engine coolant and EGTs under control during heavy towing.
- Stop Intake Soot Sludge & Sticky Valves: Prevents hot, oily exhaust carbon from re-entering your intake manifold, keeping your intercooler pipes, intake runners, and valves permanently clean.
FAQ
Q: Do I need a custom ECM tune to run an EGR delete on an LBZ Duramax?
A: Yes. Once the EGR valve and cooler are physically removed, the ECM will detect missing sensor inputs and lack of EGR flow, triggering a CEL. A custom tuner is required to turn off EGR diagnostics.
Q: Does this kit completely eliminate the EGR cooler, or is it just a block-off plate?
A: This is a full removal kit. It allows you to physically remove the heavy, bulky factory EGR cooler, valve body, and crossover tubing entirely, freeing up vital space under the hood and eliminating coolant leak risks.
Q: Can I install this EGR delete kit on a completely stock exhaust setup?
A: Yes. This kit functions independently of your exhaust diameter. You can run it on a stock truck (with a required tuner) or pair it with a 4" or 5" straight-pipe exhaust for maximum performance gains.
Q: Will deleting the EGR on my 2006–2007 LBZ cause any damage to the factory turbocharger?
A: No. In fact, it protects the turbo and intercooler system. Without hot, oily exhaust soot being forced back into the intake, the intercooler boots stay dry and the turbo wheel stays clean, maintaining consistent boost pressure.
