Easy 4-Hi mod - Simple All High Chip 03-06 model years

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Mr. 960

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bought two. One for the Sierra, and one for the Yukon. Work great and super fast shipping!!!!!
 

cmc76

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Delivered in about 2 days, install took all of 2 minutes. All I can say is simple. I haven't had much opportunity to use it, as I do mostly city driving. But the few minutes I did, very impressed.
 

Fosscore

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My contribution to this easy plug and play mod.

(Will only fit 03+ models and up. As of March 2016, the company does not intend to make this for the 99-02 models).


Day time.

IMG_7103.JPG


Night time.
IMG_7109.JPG
 
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Booyahzman

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Definitely going to be buying one of these.

Question, I have some cables I bought from the RetrofitSource when I installed my projectors that keep my lows on with my highs. Do you think I should remove these when installing this circuit board, or will it not matter?
 

Countryboy07

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Got it today, put it in this evening and absolutely love the extra light. Will be even better when I change the lights out to LED.
 

05Single

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Oh nice. I'm slackin, need to buy mine. Combined with led it should be able to see to the future lol
 

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