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Old 07-25-2013, 03:48 PM   #1
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H4 vs. H4 with full harness

Is it even worth upgrading to H4 if I don't re-wire with rallylights or Daniel Stern? Our junk headlights have bad reflectors and horrible power. Is H13 vs H4 power worth $120/$150 for a harness?

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Old 07-25-2013, 11:00 PM   #2
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Originally Posted by mda0303 View Post
Is it even worth upgrading to H4 if I don't re-wire with rallylights or Daniel Stern? Our junk headlights have bad reflectors and horrible power. Is H13 vs H4 power worth $120/$150 for a harness?
Make you're own for about $20. It's not hard.

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Old 07-29-2013, 08:44 PM   #3
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I just did the Stern upgrade with the Cibie headlights and the recommended Sylvania bulbs. I used the standard H4 plug and play harness and adjusted them correctly. The lights are better but still not what I was looking for on low or high beam. I'm going to try the upgrade harness next and see how that performs.
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Old 07-29-2013, 08:46 PM   #4
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Oh yeah....FYI, my adapter harness that I bought from DS came from Rallylights.
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Old 07-31-2013, 02:19 PM   #5
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I just ordered the KC Hilites H4 kit from quadratec.

I'm curious to see how much better the upgrade it on it's own, with the Phillips Extreme +80 bulbs, and ultimately with a new harness.
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Old 07-31-2013, 08:59 PM   #6
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I just ordered the KC Hilites H4 kit from quadratec.

I'm curious to see how much better the upgrade it on it's own, with the Phillips Extreme +80 bulbs, and ultimately with a new harness.
My KC's will be here Friday. I'm just wondering about the JKs weak power to the bulbs. Regardless if they're H4's of H13's
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Old 08-18-2013, 12:09 PM   #7
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The stock harness will not have the power to operate the h-4 bulb efficiently. The wiring harness, is plug and play, super easy…also you get new reflectors… from http://www.rallylights.com/vehicle-type/domestics/jeep/sm6024j-headlamp-kit-for-jeep-wrangler-2007-replaces-h13-lamp-with-hella-e-code-h4-headlamps.html
Something in think is the single best mod you can do.
Take a look at
http://www.wranglerforum.com/f132/the-official-jk-aftermarket-lighting-thread-hid-halo-fog-etc-166997.html, pay attention to the posts by Hilldweller.
Hope this helps

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