Description
Product Overview
The iFJF Duramax LML DPF Delete + EGR Cooler/Valve Delete Combo Kit delivers everything you need to eliminate both the restrictive diesel particulate filter (DPF) and problematic exhaust gas recirculation (EGR) system from your 2011–2015 Chevrolet Silverado or GMC Sierra 6.6L Duramax. This is the ultimate bolt-on performance upgrade — one box, one installation, massive gains.
Key Features
-
4" DPF Delete Race Pipe — 409 stainless steel, mandrel-bent, 3-piece bolt-on design
-
EGR Cooler Delete — Billet aluminum block-off plates, eliminates coolant passage to EGR
-
EGR Valve Delete — Intake closing plate + exhaust block-off plate
-
100% Bolt-On — No cutting, welding, or fabrication required
-
Includes All Hardware — Clamps, bolts, screws, cooling hose included
-
Direct Replacement — Retains factory intake and exhaust manifold
Vehicle Compatibility
| Year |
Make |
Model |
Engine |
| 2011–2015 |
Chevrolet |
Silverado 2500HD / 3500HD |
6.6L Duramax LML |
| 2011–2015 |
GMC |
Sierra 2500HD / 3500HD |
6.6L Duramax LML |
Performance Gains
| Metric |
Before |
After |
| Fuel Economy (Combined) |
13–14 MPG |
18–19 MPG |
| Exhaust Gas Temp |
High (restricted) |
250–350°F Lower |
| Throttle Response |
Delayed |
Immediate |
| Horsepower (with tune) |
Stock |
+30–50 HP |
Package Includes
- 3 × DPF Delete Pipes (4")
- 1 × Air Intake Closing Plate
- 1 × Exhaust Block-Off Plate
- 1 × Three-Terminal Cooling Hose
- 4 × Hose Clamps
- 8 × Mounting Screws
- 3 × Exhaust Clamps
- 2 × Bolts
- Complete Hardware Kit
Frequently Asked Questions
Q: Can I retain my stock intake manifold with this kit?
A: Yes. This kit is designed to delete the EGR actuator valve and cooler while keeping your factory intake and exhaust manifold.
Q: Do I need to tune immediately after installation?
A: Yes. The truck will throw codes and potentially enter limp mode without a DPF/EGR-delete capable tuner. Have your tuner ready before you start the install.
Q: What's the fuel economy improvement?
A: Customers typically report a combined mileage increase from 13–14 MPG to 18–19 MPG after DPF/CAT removal, depending on tire size and driving habits.
Q: Does this kit include the downpipe?
A: No. This is the DPF/CAT mid-pipe section plus EGR delete. A separate downpipe is available for the turbo-to-midpipe section.
Related Products
⚠️ Off-Road / Competition Use Only: This product is intended for off-road or competition vehicles only. Not legal for highway use on emissions-controlled vehicles in the US and many other jurisdictions. Check local and federal regulations before purchasing. Removal of emissions equipment may void your vehicle warranty.
