WHAT IS THE POWER
HARNESS AND WHAT DOES
IT DO?
With the Hayes Power Harness you can have the power and
performance you have always wanted.  This power harness provides
extra response and horsepower for the low end performance of your
3126, 3406E, C-11, C-12, C-13, C-15, C-16, and especially on the ACERT
engines.  
No more turbo lag.  A great feature of the power harness is
the easy installation.  It simply plugs between the factory wiring harness
and the boost sensor. Don't worry this product can be removed as
quickly as it is installed.  This means that once removed there is no
evidence it was ever there so your factory warranty will not be affected.
Hayes performance parts does recommend you remove the power
harness before you take your truck to a dealer for warranty work.
This product does not meet epa certification. It does not meet emission.