URD Upgrade Kit for existing TRD 7th Injector system – 5VZ-FE



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Performance Upgrade Kit Only for TRD Supercharged 3.4L V6  Trucks with TRD 7th Injector

UNDERDOG RACING DEVELOPMENT sells an upgrade kit for TRD’s 7th injector kit.  By adding URD’s electronics and components, you can tune your truck to be more powerful, efficient, and ping free.

This kit includes:

  • URD Additional Injector Controller with Timing Calibrator (Timing retard and fuel control)
  • Upgraded 190 LPH fuel pump and kit kit
  • Tuning Software
  • Vehicle Specific Installation Guides
  • Tuning Guide
  • Hard Line vacuum-T kit
  • Shrink Tubing & Zip Ties

Underdog Racing Development’s 7th Injector Upgrade Kit allows you to take control of TRD’s 7th Injector. You can optimize fuel mixture for optimal performance. This kit gives you the tools needed to custom tune your vehicle for enhanced performance.  Since timing can be retarded in 1/10 of a degree increments, you can easily get rid of high gear low rpm knock.

Year Make Model Engine
Year Make Model Engine
2000 - 2004 Toyota Tundra V6 3.4L 5VZ-FE
2000 - 2004 Toyota Tacoma V6 3.4L 5VZ-FE
1999 - 2002 Toyota 4Runner V6 3.4L 5VZ-FE

Additional information

Weight 4.30 lbs
Dimensions 9.00 × 9.00 × 9.00 in

Only logged in customers who have purchased this product may leave a review.

1 review for URD Upgrade Kit for existing TRD 7th Injector system – 5VZ-FE

  1. Scott Matthews

    Just thought I would drop you a line and say how happy I am with the performance of your 7th injector upgrade kit for the TRD unit. I just wish I hadn’t wasted my money on the TRD unit the first time! All the problems (knocking, surging idle with the A/C on, lack of power, etc.) I had before are now gone! Your instructions were spot-on and easy to follow and the quality of parts was excellent! Thanks again, Scott..

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