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2005 Impreza 2.5RS Black
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Discussion Starter #1
The wife is unhappy with the brightness of the headlights (especially for nigh driving). I've cleaned the glass, which helped a little, but not enough. Are there light bulbs that would fit my car that are particularly bright? Any particular things I need to keep in mind when swapping out bulbs (I'm a newbie -- I know not to touch them with my fingers, but that's about it). Many thanks in advance.
 

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2001 Impreza 2.5RS+T 2001 Legacy GT
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Well, they are plastic, not glass so it takes a bit of work to clean them up if they have oxidized(yellowed). The yellowing of the plastic is going to be the biggest drain on lumen performance! Easiest thing to do is buy a new pair of DEPO brand (cheaper than OEM) housings. For the more DIYer you could wet sand and polish the plastic clear again, BUT with that you need to make sure to wax the housings regularly or they will yellow even worse and faster.

Bulbs to stay away from are the Long Life or LL bulbs. They have a lower output to live longer. Bulbs with any type of full coverage blue coating are also ones to stay away from. They create the illusion of a brighter light, but it actually fatigues the human eye quickly.

Give this site a read through, tons of information! Not just the page I linked, but the rest of his website as well.
Daniel Stern Lighting Consultancy and Supply

My favorite bulb to use on the street is the Philip Nightguide(Niteguide?). NAPA has their own version of it. They give off three distinct color sections. Yellow to the left side to reduce glare for oncoming traffic, white light straight ahead to increase forward visibility, and blue to the right to better illuminate road signs. This is the only time I will recommend a bulb with a blue light filter.
 

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2001 SRP 2.5RS/RA/SOHC Monster
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What I've found helps more than anything is upgrading the wiring to the headlights. Wire up a relay directly from the battery to the bulb that is triggered by the stock wiring and you'll be amazed at the additional output.
 

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2000 RS gray/silver
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89 Posts
What I've found helps more than anything is upgrading the wiring to the headlights. Wire up a relay directly from the battery to the bulb that is triggered by the stock wiring and you'll be amazed at the additional output.
is this true?
my headlights are garbage, my fogs are way brighter than my headlights!

so put in another relay after the H/L relay in the fuse panel?
 

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2001 SRP 2.5RS/RA/SOHC Monster
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is this true?
my headlights are garbage, my fogs are way brighter than my headlights!

so put in another relay after the H/L relay in the fuse panel?

I wasn't lying! If you're a Brian when it comes to wiring it might be better just to buy one of these guys. Super easy to install. Upgraded headlight wiring and some Silverstars or Osram Nightbreakers is a wonderful combination.

Amazon.com: Dual High Low Beam Headlight Relay Wiring Harness H4/9003 With High Heat Ceramic Plugs: Everything Else
 

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2001 Impreza 2.5RS+T 2001 Legacy GT
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1,236 Posts
I put one of those cheaper relay harnesses in my 95 pathfinder. It worked great, for a short time. They use garbage relays that fail. If you can, and it's money, find one that uses Bosch relays... or even rewire it yourself. the relays they use and bosch don't directly interchange. I inquired to DanielSternLighting just recently about a relay harness for my impreza and he quoted me $189
 

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2001 SRP 2.5RS/RA/SOHC Monster
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That's a ridiculous price for a relay harness. It's like 8 feet of wire, some connectors and a couple relays.
 

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2000 RS gray/silver
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89 Posts
after reading through that daniels page, i'll have to work on this and see what happens.
I made this quick drawing. am i on the right track?
or could someone set me straight on where to add a new relay?

 

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2001 SRP 2.5RS/RA/SOHC Monster
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Way wrong.

Run power straight off the battery to the relays. Trigger the relays with the stock headlight wiring. Super basic. Also, that Daniel Stern page linked earlier has all the info, including diagrams.

 

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2001 Impreza 2.5RS+T 2001 Legacy GT
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That's a ridiculous price for a relay harness. It's like 8 feet of wire, some connectors and a couple relays.
I agree! Why I didn't buy one, but still wanted to know what he charged, materials wise it's very cheap and easy to build your own. And then you can make it custom fitted for your car so you don't have extra to hide somewhere.
 

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2001 SRP 2.5RS/RA/SOHC Monster
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2,795 Posts
I agree! Why I didn't buy one, but still wanted to know what he charged, materials wise it's very cheap and easy to build your own. And then you can make it custom fitted for your car so you don't have extra to hide somewhere.
I've been using the $40 harnesses from Amazon for a while on a few different vehicles with no issue. Not sure how he can charge that much.
 

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2001 Impreza 2.5RS+T 2001 Legacy GT
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1,236 Posts
I've been using the $40 harnesses from Amazon for a while on a few different vehicles with no issue. Not sure how he can charge that much.
I have one of those in my pathfinder, the relays failed in less than six months. hopefully you're having better luck! I want replace the relays but they use a non standard relay and I haven't bothered rewiring it for bosch units
 
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