This is not a for-sale thread; please make all purchase inquiries to Reason, who is the exclusive dealer of the 4Zero1Motorsports USDM-to-JDM Headlight Adapter Harnesses. Official Presale/For-Sale Signup thread TBD.
EDIT: Signup page now live! Click here to buy!
The following installation guide and support thread is for owners and potential owners of the 4Zero1Motorsports USDM-to-JDM Headlight Adapter Harnesses for 1995-1999 USDM Subaru Legacy cars (BD, BG, and BK Chassis ONLY).
It is divided into 4 sections:
This introduction that you are now reading
Disclaimers and Identifying your Car's Stock Headlight Connections
Express Installation for those that "know what they're doing" :smt002
Full-On Step-by-Step Comprehensive JDM Headlight and Adapter Harness Installation, made easy even for n00bs
At this time I'd like to say thanks and make acknowledgments to Warrior, who's excellent DIY JDM Projector Install served as my primary inspiration for this version of install guide. Also, my thanks goes out to all the contributing posters in that thread who asked and answered many technical questions with regards to JDM Headlight installations. They addressed many issues over the course of the last 5+ years that the thread has been going to date, and have helped make this guide as thorough as I could make it. My thanks and appreciation goes out as well to all of the contributors to my thread Where to find the elusive JDM headlight connector?, without whom these adapter harnesses would not be possible (hansvonaxian comes straight to mind as the fist person to identify the JDM connector for me ). Thank you to Eekay, for his excellent write-up JDM Headlight Blackout and USDM Light Pattern Conversion over on LegacyGT.com - anyone performing the conversion to JDM lights needs to follow his instructions to convert their beams for Left Hand Drive/Right Hand Traffic for use in North America. Thanks, also, to Thomistopheles who kindly allowed me to reproduce his photo of his H4 headlight connector in this guide. And of course Reason, who egged me on to make a limited production run and who has agreed to take care of individual retail sales, as a fundraising benefit to support SL-i.net.
To download a formatted, printable PDF of this install guide, I heartily recommend the following link:
Printable JDM Headlight Install Guide
For ease of reference, each following post will correspond to it's respective page number of the printable install guide.
Let's begin!
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Page 1
4Zero1Motorsports
1995-1995 Subaru Legacy Plug-and-Play USDM-to-JDM Headlight Adapter Harness
For Off-Road Use Only
***Important Disclaimer*** Japanese Domestic Market (JDM) headlights are engineered and aimed for Right-Hand Drive (RHD) vehicles, traveling in Left Hand Traffic. In other words, vehicles in Japan drive on the opposite side of the road from traffic in North America. For this reason, installing unmodified JDM lights on a car traveling on public roads in the USA is dangerous and illegal, and therefore, using JDM lights on your USDM car is for Off-Road Use Only. In order to project a beam suitable for North American roads, your JDM headlights must first be converted for Right Hand Traffic and then carefully aimed, so as to provide proper forward road and signage illumination, and not blind oncoming traffic. The maker and/or seller of these adapter harnesses cannot be held responsible for damage to persons or property, fines, death, insult, or injury from the use of these harnesses, and all responsibility lies solely with the installer/user.
These adapter harnesses facilitate the electrical Plug-and-Play connection of Japanese Domestic Market (JDM) Subaru Legacy projector headlights to second-generation North American Subaru Legacy Sedan, Wagon, or Outback cars for 1995-1999 model years (Subaru chassis code "BD", "BK", and "BG") ONLY. They have been custom-built by hand for second-generation Legacy cars, using the highest-quality components available, including genuine Yazaki OEM JDM connectors and terminals manufactured in Japan, and SXL cross-linked premium automotive wire, quick-disconnects and ring terminals manufactured in USA, (soldered on for maximum reliability).
Before attempting installation, be sure you have the correct adapters for your Legacy. Determine which type of headlight plugs your USDM Legacy has installed. 1995-1996 models should use H4-bulb style plugs (also called HB2 or 9003 connectors). 1997-1999 models should use 9007-bulb style plugs (also called HB5 connectors). Note that the 1997 Model Year Legacy is sometimes considered a transition year, and may have either H4 or 9007-type connectors installed from the factory. Also, pre-owned cars may have had the stock headlight connectors replaced in the past, so be sure to double check with which kind your particular vehicle is equipped:
If your 1995-1996 Subaru Legacy is equipped with H4 Plugs (aftermarket replacement H4 connector shown)... ...make sure you have the H4-style JDM Adapter Harnesses.
(Photo credit: Thomistopheles)
If your 1997-1999 Subaru Legacy is equipped with 9007 Plugs........................................................ ...make sure you have the 9007-style JDM Adapter Harnesses.