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06 STS
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56 Posts
Discussion Starter · #1 ·
Was planning to do this about a month ago. Finally got around to it.

Comparison with Halogen:




Both LED's:



Let me know what you think ! and yes, they are super bright!
 

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06 STS
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56 Posts
Discussion Starter · #4 ·
told ya.. hahaha
Haha .. cheers man!

Where did you find those and what is the part number. I got to have a set for my STS.
Ebay! You need 2 bulbs sized 3156 or 3157 , they are the same..

The bulbs I bought have 18 of the new "SMD" led's .. and they are the multidirectional type.

Good luck, let me know if you have any other questions.
 

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Cadillac STS 2005
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811 Posts
You want to get the 3156 the 3157 are dual mode bulbs used for parking lights that double as break or turn signals.
 

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2005 Cadillac STS
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361 Posts

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Cadillac STS
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88 Posts
just ordered a pair! looking forward to installing these!
HAS ANYONE CHANGED THEIR HIGHBEAM LIGHTS? PICS?
I WAS THINKING OF CHANGING MINE TO RED (LOL)
NOT TO FLASH THEM BUT WHENEVER YOU UNLOCK THE TRUNK FROM THE FOB...THE LIGHTS FLASH & I THOUGHT IT WOULD BE COOL LOOKING
 

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2005 Cadillac STS
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361 Posts
Not that I know off, I'd go against swapping the high beams to anything other than halogen. They are usually needed for emergencies.
 

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2005 Cadillac STS
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361 Posts
Try the 68 LED bulbs if your backups are tinted.

Remember to consider clearance. I dont remember very well, but I doubt those will work because they look too tall.
 

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OH FIVE STS V8
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52 Posts
Remember to consider clearance. I dont remember very well, but I doubt those will work because they look too tall.
They do fit....consider that an up close picture you'll see online will make it look much bigger than what it actually is.
 
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