H9 low beam Silverado upgrade

[MNorby]

Doing some research and found swapping a H11 to a H9 bulb is a common upgrade with a very easy modification.  I have found a few posts from NNBS guys swapping but nothing really on the K2XX HD trucks. I remember reading that the low beam/DRL is completely run through the BCM and no relay like the high beam. My concern might be using the 65w H9 in place of the 55W H11 bulb drawing more amps and potentially causing BCM trouble and maybe its a non issue.  Anyone try some H9s in their 2015+ HD truck? 

 

On the same note I'm going to try the 9011s in place of the 9005 high beams but that seems pretty straight forward and simple. 

[avalonandl]

The extra wattage should not matter. its not that much.

[MNorby]

It's about 1 amp more combined so not really much. I installed them all this morning, will see how they help. 

[avalonandl]

Please let us know- how hard were the modifications?

[MNorby]

Trimming the bulbs was easy. Low beam is definitely better and still has the nice sharp cutoff. High beam is hard to say but would guess 10% better judging by some landmarks on my drive in the mornings but not night and day different but for the cost worth it. 

[gforce_15]

any issue with higher operating temperature of the H9 in the factory housings? No melting of housing or anything like that?

[MNorby]

nothing that I have seen yet externally.