KD Custom ECM programming for Duramax LLY
Dual mode switchable tuning allows you to
have your choice of two tunes available at all
times! Tunes are typically set as a 50HP
economy/tow and 80HP performance tunes. The
economy tune has been producing very consistent
mpg numbers at around 19-20mpg and sometimes
more for single wheel trucks. DSP2 switch
included with purchase. Higher HP and Race
level tuning also available in listing below.
A modified transmission is required for HP
levels above 80RWHP.
Installation Instructions and Product
Review
"This item requires your ECM be sent
in OR exchange ECM can be provided." -
JK
Dyno Plot
Race Dyno Plot
When comparing dyno numbers, please
note that my dyno plots do NOT use correction
factors. These are no BS dyno runs with no
inflation to make sales. -JK
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KD Custom ECM programming for Duramax LLY-Race level
Dual mode switchable tuning allows you to
have your choice of two tunes available at all
times! Tunes available to produce anywhere
from 40HP economy to 200 RWHP. DSP2 switch
included with purchase.
"This item requires your ECM be sent
in OR exchange ECM can be provided." -
JK
Dyno Plot
Race Dyno Plot
When comparing dyno numbers, please
note that my dyno plots do NOT use correction
factors. These are no BS dyno runs with no
inflation to make sales. -JK
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ECM core for Kennedy Custom Dmax LLY-Deposit only
If you do plan to return your ECM core
but need us to supply you with a loaner, please
select this item. We can also program the ECM
to any factory calibration if necessary. This
item available for purchase ONLY with Kennedy
Custom Tuning and is not available for
individual outright sale. Core must be
returned within 30 days or it will be billed as
non refundable. Please note: If core deposit
only is selected any future updates will
require that the ECM be sent to us for the
update.
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ECM core for Kennedy Custom Dmax LLY-Purchase
If you do not plan to return your ECM core
please select this item. We can also program any
ECM to your factory calibration if necessary.
This item available for purchase ONLY with Kennedy
Custom Tuning and is not available for individual
outright sale.
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KD Basic ECM programming for Duramax LLY
Basic tune changes include passlock reset
for engine swaps, speedo recalibration, factory
updates, and fixing basic Diagnostic Trouble Code
issues.
"This is not a complete tune, only a
basic fix and requires the ECM to be sent in to us
or a suitable core must be provided. We will not
provide a core for this item." -JK
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