Drive by cable vs, DBW (drive by wire - electronic), I think...
What's more desirable in the LQ4s, the 1999-2000 w/CI heads, or the 2001-2007 w/aluminum heads?
CFSJ mentioned the "factory peelers" in his post probably referring to the paint/primer compatibility problem
GM experienced in the 80's.
I had an '89 S-10 Blazer that the paint was peeling off of and in 1993 I was sent to the local Pontiac dealership
to be repainted for free.
The shop foreman...
I replaced the sealed beams in my '78 with round DOT LEDs I got from the 'bay'. I had to cut and peel back
a part of the light buckets in order to fit the back of the led in.
Otherwise, plug & play.
Welcome to the site...
What kind of upgrades are you thinking of?
I can understand a few changes like what I did to my '78 to
make it my own.
I changed tires & wheels and a little bling under the hood.