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KEM Green card

4K views 18 replies 10 participants last post by  H&S Support 
#1 ·
What has your experience been with the green card (dpf ON) on a H&S tuner? Fuel mileage, hp, tq and reliability?
 
#3 ·
Thought they were vin specific??? Probably should call them.

Have mine and really like the difference felt over the H&S "Hot". Too early to give you mileage feedback.
 
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