C4 / Spark Plugs - ZEX???
Thread Starter
Heel & Toe
Joined: Dec 2005
Posts: 24
Likes: 0
From: Arlington VA
C4 / Spark Plugs - ZEX???
We autocross and drag race our Vette and its time to replace the plugs for the upcoming season. I have been running the Bosch Platnum plugs but I've been doing some reasearch for performance spark plugs and ran across the ZEX which sounds good - has anyone tried these and/or have recommendations?
ZEX Spark Plug
ZEX Spark Plug
Race Director
Joined: Oct 2001
Posts: 19,653
Likes: 428
From: Melbourne Florida
Cruise-In IV Veteran
Am I reading that right?...$56.00+ for a set of plugs?....I'm not saying they are not worth it as I have no idea but that is pricey...I race my car 90% of the time and I use Autolites...less than $9.00 a set...
Team Owner
Joined: Aug 2000
Posts: 40,156
Likes: 45
From: San Pedro CA
ZEX are really popular amongst the import tuner crowd. They are supposed to be very good... but I have no empirical data.
I am with STL94LT1, tho. I have empirical data regarding the NGK... Nothing wrong with them at all.
I am with STL94LT1, tho. I have empirical data regarding the NGK... Nothing wrong with them at all.
Safety Car
Joined: Apr 2004
Posts: 4,532
Likes: 7
From: Lahaina Hi
They make the engine run like crap and it will never idle smooth.
Zex sucks!!!
How would you like to buy a set for your vett?
Cheap !name your price .I have run them for 300 miles and they are just like new.
I went back to my B8EFS NGK's runs great again.
Zex sucks!!!
How would you like to buy a set for your vett?
Cheap !name your price .I have run them for 300 miles and they are just like new.
I went back to my B8EFS NGK's runs great again.
