Description
Upgrade your 2002-2007 Cummins ISX CM870 with the iFJF Stage 2 EGR Delete Plug Kit — a complete solution designed to eliminate the problematic EGR system and restore engine performance. This kit includes precision-machined block-off plates and plugs, all manufactured from high-grade billet aluminum with CNC machining for perfect fitment. By removing the EGR system, you reduce carbon buildup in the intake, lower exhaust gas temperatures, and improve overall engine efficiency. For off-road and competition use only.
Key Features & Benefits
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Complete Stage 2 Kit: Includes all block-off plates, plugs, and hardware needed for a full EGR system delete on ISX CM870 engines.
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CNC-Machined Billet Aluminum: Precision-machined from 6061-T6 billet aluminum for exceptional durability, corrosion resistance, and precise OEM-level fitment.
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Eliminates Carbon Buildup: Removes the EGR recirculation path, preventing carbon and soot accumulation in the intake manifold and on valves.
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Lower EGTs: Eliminating exhaust gas recirculation significantly reduces exhaust gas temperatures, protecting your turbo and engine internals.
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Improved Throttle Response: Cleaner intake air means better combustion efficiency and noticeably improved throttle response.
Vehicle Compatibility
| Year |
Make |
Model |
Engine |
Notes |
| 2002-2007 |
Cummins |
ISX CM870 |
15.0L ISX |
Stage 2 Kit |
| 2002-2007 |
Peterbilt |
379/386/387 |
ISX CM870 |
Verify engine code |
| 2002-2007 |
Kenworth |
W900/T600/T800 |
ISX CM870 |
Verify engine code |
| 2002-2007 |
Freightliner |
Century/Columbia |
ISX CM870 |
Verify engine code |
Technical Specifications
| Material |
6061-T6 Billet Aluminum |
| Manufacturing |
CNC Precision Machined |
| Kit Type |
Stage 2 (Plates & Plugs) |
| Engine Compatibility |
Cummins ISX CM870 (2002-2007) |
| Installation Time |
4-6 hours (professional recommended) |
Installation Guide
Installation requires basic mechanical skills and standard hand tools. Remove the EGR cooler, EGR valve, and associated piping. Install block-off plates at the exhaust manifold and intake manifold ports using supplied gaskets and hardware. Torque all fasteners to factory specifications. A performance tuner/ECU reflash is strongly recommended to maximize benefits and prevent check engine lights.
⚠️ Important Legal Notice
This product is intended for OFF-ROAD AND COMPETITION USE ONLY. It is NOT legal for use on public roads in the United States or Canada. Installation may violate federal, state, and local emissions regulations. NOT CARB compliant.
Frequently Asked Questions
Q: Will this fit my 2005 Kenworth W900 with ISX?
A: Yes. If your Kenworth W900 has the Cummins ISX CM870 engine (2002-2007), this Stage 2 kit is a direct fit. Always verify your engine code is CM870 (not CM871 or later) before ordering.
Q: Do I need a tuner after installing this EGR delete kit?
A: While the mechanical delete works without tuning, we strongly recommend an ECU reflash or performance tuner to disable EGR-related DTCs, optimize fuel mapping, and prevent check engine lights.
Q: What is the difference between Stage 1 and Stage 2?
A: Stage 2 includes additional block-off plates and plugs for a more complete EGR system removal compared to Stage 1. This kit removes more EGR components for maximum flow improvement.
Q: Will this improve my fuel economy?
A: Most operators report 0.5-1.5 MPG improvement after EGR delete combined with proper tuning. Results vary based on driving conditions, load weight, and tune quality.
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