Shop By Diesel

Superchips 3950 Cortex Programmer

List Price: $619.00
XDP Price: $379.99
You Save: $239.01 (39 %)
Manufacturer: Superchips
Manufacturer Number: 3950
XDP Part Number: SC3950

Application: 03-09 Dodge 5.9L & 6.7L Cummins | 04-08 Hemi Gas Pickup Trucks | 05-08 Dodge & Chrysler Hemi Cars

Product Options

free shipping

XDP $5 Pricebeat Guarantee

MVP Authorized Dealer Xtreme Diesel Performance is an Authorized MVP dealer. We would like you to shop with confidence knowing your purchase is covered by the manufactures warranty.

  • Up to three best-in-class tuning levels
  • Industry-Exclusive 2-year powertrain warranty comes with every product at no additional cost
  • Elegant, sleek, innovative design
  • Diagnostic Library retrieves, displays and clears DTC's
  • Log performance times & speeds, displays & stores PID data
  • Supports wheel, tire and gear swaps
  • Easy to install, Internet updateable
  • One part number for each OEM
  • Available Data Acquisition at
  • Adjust Shift Points
  • Enhance Shift Firmness
  • Eliminate Speed Limiter
  • Recalibrate Speedometer for Larger Tire Sizes
  • Adjust RPM Limiter
  • Choose from up to Three Available Tuning Levels


  • Gas Levels vary by application
  • Cummins Power Levels (95HP Tow & 137HP Performance)

Additional Information

Install Sheet

Product Reviews

Rate This Product:
or Create a Review
(122 Ratings, 2 Reviews) Average Rating:
2003 Dodge
Donny (Texas) 4/25/2011 8:18 AM
This thing made my truck run like a scalded dog. I bought it for the towing option and I now have no problems with pulling a 20 foot enclosed trailer with a car inside. My fuel milage has increased along with the power. I would recommened this tuner to anyone if they need power to pull trailers. The only thing is that it takes a while to download the settings off the internet but is well worth the time.
Worth the money
2008 6.7L (MD) 7/31/2009 2:55 PM
Though its slow to install the tunes are well worth the money on the 6.7L. I have run it on performance and saw good power as well as mpg increase. On extreme the power is even better though I dont want to clog up my DPF. Well work the cash for it.

Customers Who Bought This Item Also Bought

XDP Replacement Guarantee - Electronic Performance Products (1 YEAR)
XDP Price: From $19.95 to $45.95
XDP Replacement Guarantee  - Electronic Performance Products (1 YEAR)
1 year guaranteed replacement of your electronic performance part purchase.
Daystar Do Not Flash OBDII Plug KU71124BK
XDP Price: $14.99
Daystar Do Not Flash OBDII Plug KU71124BK
Universal - Fits Most OBDII Ports