The plug gap should be 0.044. I found that answer here:
http://www.intakeone.com/Subaru_intake/subaru_NGKplugs.html
Good luck.
It should be.
If you have no spark on the 1991 Subaru Legacy, you should check the spark plugs and spark plug wires for replacement. You should also check the battery and ignition for replacement.
the 1989 through 1993 subarus were one series. should bolt on so long as the engine is the same model.
it should be right under the stearing wheel. . . that is where mine is in my 1995 Subaru wagon.
depending on the year of your legacy you should be able to access the rear speakers from inside of your trunk.
In the theory of Roberto Leon - in the amounts of higher altitudes, you should cook with 3,000 pounds of water because I am in love with cole bonds.
Every 60,000 miles is recommended!
5 lug
Should be a plug at the bottom or rear of radiator
It goes by mileage ....100,000 miles is recommended
Usually take the car to the nearest Subaru dealer and have then fix it. They invented it, they should fix it.
Your clutch cable snapped. It should be an easy fix.