A couple weeks ago a friend suggested I up-grade my tombstone style tail light because in following me (small group) it just did'nt get much brighter when I was braking. Since then I happened to read an article claiming that a 2357 bulb would be a lot brighter (only on the high end) than the standard 1157 bulb. Yesterday, I was in the cage and stopped at an Auto-Zone to grab a 2357 bulb for about $1**or so...came home to change it out and found that inside the tail light everything was covered in a light layer of dark dust. I cleaned it out,changed the bulb and was really impressed with the difference.
The 2357 bulb has a shorter life than an 1157...but even at only about 1/3'rd we're still talking about a LONG time...and at less than $2**............