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H&S XRT Pro Race Tuner & 4" Downpipe Back w/Muffler | 2007.5-2010 6.6L GM Duramax LMM


This performance package includes the H&S Performance XRT Pro Xtreme Race Tuner and Flo~Pro 4" downpipe back with muffler for 2007.5-2010 6.6L GM Duramax LMM 2500/3500 applications.

  • Deletes the DPF, CAT, & EGR systems
  • Delete tuning with 4 power levels: stock, +60HP, +120HP, & +175HP
  • EASY, Plug & Play Installation
Pricing: $1,109.00

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H&S Performance XRT Pro| 109005

Power Levels

  • Stock: 0HP
  • Mild: 60HP
  • Wild: 120HP
  • Hot: 175HP


  • Comes preloaded with DPF Present and DPF Removed capable tuning
  • Allows removal of the DPF system and ALL related sensors (nothing needs to go into the race exhaust or even be plugged in)
  • Precisely tune engine with HP increases of 0-250HP (dependent on application, see below chart)
  • Speedometer recalibration for use of non-stock size tires or gearing
  • Enable/Disable factory "special features"
  • Remove/Adjust top speed limiter
  • Allows removal of the entire EGR system including cooler with no trouble codes
  • Turn off the EGR system without removing ANY parts
  • Read/Clear Diagnostic Trouble Codes
  • Custom Tunes are FREE to download
  • Internet updateable w/included Micro SD Memory Card and USB Adapter
  • Made in the USA

Flo~Pro 4" Downpipe Back w/Muffler | 834

  • Fits 2007.5-2010 6.6L GM Duramax 2500/3500 EC-CC/SB-LB-DUALLY
  • Mandrel bent piping
  • Includes all mounting hardware
  • Easy installation with simple hand tools
  • Reduces EGTs
  • Increases HP/TQ

WARNING! These products are capable of disabling emissions equipment. If using DPF/EGR removed tuning, these high performance products are intended SOLELY for offroad use or closed-course racing use.

Shipping Information

  • Item Requires Shipping
  • 33.0 lbs.
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