Yes- another winner
Thread Starter
Le Mans Master
Joined: Oct 2006
Posts: 7,434
Likes: 84
From: North Carolina "life is good"
2025 c3 ('68-'73) of the Year Finalist - Unmodified
Yes- another winner
Hey all,
Just wanted to let you all know that I too entered the Bosch spark plug give a way and last week I received in the mail a complete set of Bosch iridium spark plugs for my C5.
I only have about 45K miles on my '99 but I figured since the plugs are 10+ years old they are ready for a change. I was a little worried about 10 year old plugs in aluminum heads but the old ones came right out. In went the new Bosch plugs along with a new set of wires, thanks GM parts house
.
I had a noticable stumble at idle and that is gone. Runs like brand new. ( yes I know Bill, any new plug would be an improvement
). The best thing about these Bosch plugs is that they were free. 
Way to go Bosch.
Just wanted to let you all know that I too entered the Bosch spark plug give a way and last week I received in the mail a complete set of Bosch iridium spark plugs for my C5.
I only have about 45K miles on my '99 but I figured since the plugs are 10+ years old they are ready for a change. I was a little worried about 10 year old plugs in aluminum heads but the old ones came right out. In went the new Bosch plugs along with a new set of wires, thanks GM parts house
. I had a noticable stumble at idle and that is gone. Runs like brand new. ( yes I know Bill, any new plug would be an improvement
). The best thing about these Bosch plugs is that they were free. Way to go Bosch.
Tech Contributor
Joined: Aug 2008
Posts: 2,902
Likes: 21
From: Oak Hill Virginia
Thread Starter
Le Mans Master
Joined: Oct 2006
Posts: 7,434
Likes: 84
From: North Carolina "life is good"
2025 c3 ('68-'73) of the Year Finalist - Unmodified
Yes, call me cheap. 
