One less anti-knock kit

[tito]

Just thought I'd let everyone know, I just ordered one of the last 3 kits in the country. Supposedly there's only 2 left, although I would think there's some out there on a back shelf that's been forgotten.

[Blackjack]

What exactly is an anti-knock kit?

[tuckers89GW]

it is a different egr valve and some related cto vacumn bypass pieces. It is to eliminate the knocking these beasts have a tendancy to do. Especially later ones.