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Just read this article on the MG Experience and it sounds pretty good. LEDs are very expensive and this seems like a good and much cheaper alternative by replacing the 1157s with 2397 bulbs. Read the whole article before making any decision. To me, any improvement is a plus!
https://www.mgexperience.net/phorum/index.php
MGB & GT Forums
<span style="color: #FF0000">Article, 35 to 66% Brighter tail lights
in 2 minutes for $3.</span>
https://www.mgexperience.net/phorum/index.php
MGB & GT Forums
<span style="color: #FF0000">Article, 35 to 66% Brighter tail lights
in 2 minutes for $3.</span>