anyone done this, is it worth it?

[Farbin Kaiber]

http://www.turnermotorsport.com/p-40...r-m20-m30.aspx

[Boosted E30]

No those are absolutly usless.

[bramon]

[acolella76]

hahaha

[Mlarsen]

Can I use those in my m20?

[TurboJake]

[5Toes]

Troll.. its obvious

EDIT: NGK's are better

[Farbin Kaiber]

^ You have no room to speak on advising sparkplugs, and no, NGK's are not better for this application. I do swear by them in Asian import vehicles.

[Collin]

Proven to increase fuel economy and death.