Sinister Diesel Undelete Kit® – 6.0L Powerstroke
50-State Legal (CARB EO# D-721)
Note: For all tuner purchases, billing and shipping addresses must match.
Key Features
• Restores your 6.0L Powerstroke to full California/Federal emissions compliance
• Includes Sinister Diesel’s upgraded, high-flow TIG-welded square-style EGR cooler
• Genuine Ford EGR valve included for proper function and emissions performance
• High-flow stainless steel internal tubing prevents clogging and failure
• Direct-fit design installs using factory locations
• Helps prevent coolant contamination, white smoke, blown head gaskets, and hydro-lock
• Complete kit for converting a deleted truck back to stock emissions configuration
• CARB-approved and legal in all 50 states
Product Overview
If your 6.0L Powerstroke has previously been EGR-deleted and you need to bring it back to emissions-legal status—whether for California regulations, federal compliance, or resale—this Sinister Diesel Undelete Kit® provides everything you need in one complete package.
The centerpiece of this kit is Sinister Diesel’s upgraded square-style EGR cooler, built to eliminate the common internal brazing failures found in factory units. Instead of fragile fin-and-braze construction, the Sinister cooler uses high-flow stainless steel tubing with TIG-welded joints for exceptional reliability and durability. This design prevents coolant from leaking into the intake—a failure that often leads to white smoke, hydro-locked engines, or blown head gaskets.
To ensure seamless emissions performance, this kit also includes an EGR valve, along with all required gaskets, o-rings, hardware, and hoses. With a direct-fit design, installation is straightforward and avoids unnecessary labor.
Every Sinister Diesel EGR Cooler is durability-tested and certified 50-state legal under CARB EO# D-721. It works with stock tuning, aftermarket tuning, and all OEM electronics without throwing codes or requiring recalibration.
What’s Included
• Sinister Diesel EGR Cooler (square-style)
• EGR Valve
• Intake Gaskets
• Turbo Bolt O-Ring Kit
• Water Outlet Connector Hose
• PPE Y-Pipe
Frequently Asked Questions
Q: Why should I replace my factory EGR cooler with a Sinister Diesel cooler?
A: Factory coolers are known to clog, crack, or fail internally, which can pull coolant into the intake and cause catastrophic engine damage. The Sinister Diesel cooler uses stainless steel tubing instead of fragile brazed fins, dramatically improving reliability and flow while maintaining OEM fitment.
Q: Is this kit legal in California?
A: Yes. This kit is 50-state legal and CARB-approved under EO# D-721.
Q: Does this kit require tuning?
A: No. It is designed to work with the factory ECM calibration and with aftermarket tuners.
Q: Will this reverse a full EGR delete?
A: Yes. This is a complete Undelete Kit® designed to restore all components required for emissions compliance.
If you'd like, I can format this in your official SOP styling (Arial 18, section headers lined up exactly) or generate additional Q&A entries.
