I just got my 07 ss/sc and i have a stage 2 in it already but i want to know if it will make a difference if i went out and bought colder plug or should i not worry about it. Thanks for your time guys

 

I just picked up some Autolite 3922s. NGK BKR7Es are popular but seem to be harder to get around me so I went back to the Autolites. Colder plugs are recomended with stage 2.

 

I bought the NGK BKR7E's they are great, make it run like a champ they were only like $1.19 or something like that each!

 

The NGK's are all copper right? how often do you guys change them? every oil change?

 

They state on them 12,000 miles! I'll prolly change them every other oil change!!!

 

This might be a really stupid question, but does that effect the warranty by replacing the spark plugs with aftermarket ones?

 

Nope no warrany issue that I have heard! I told my dealership that I did it, and they just asked "I BET IT RUNS BETTER TOO, DOESN'T IT?" but my dealership is a little different on that than most!!

 

That's a touchy subject. It can if they can prove it was the colder plugs that caused the problem. That's it.

I got my Zex plugs in Wednesday. The colder plugs with the 3 electrodes.

I'm installing them tomorrow. I'll let you know how they work out.

My NGKs are acting up. They are a year old so it's about that time.
They have been great plugs though.

You should change colder plugs at least once a year.

 

Going to change every oil cahnge here as well. just good maintanence and not that expensive.

 

Have you guys noticed a difference with the spark plugs?

Great...waiting to hear how it turns out

 

I put in the Autolite 3922 and the car seems to run better. It feels like the top end is a little smoother especially on consecutive runs. Some people claim it makes the car behave like night and day but mine was a subtle change, but a change none-the-less.

 

I have stage II and put the Autolite's in. It ran better. I put the Zex in a few weeks ago to see since I run them in my supercharged Chevy 1/2 ton. The Zex seem to make the car run smoother with a little more response.

 

Is this recommended on the stock engine or only with Stage 2?

 

BTW, Are they difficult to change out?

 

Stock realy would not benifit from colder plugs...maybe a regap..but probly not.

 

is it really needed to change the plugs after each oil change?

 

Nope..unless you only change your oil every 10k miles. I ment to say every other oil change I will replace them.

 

for the zex plugs do you know the part number? i cant seem to find any for the 07 ss/sc

 

Zex part number 82003-4

 

thanks iam going to check them out i called one place just now and for NGK's the want 14.50 each WTF

 

Wait till you hear how much they want fot the ZEX.

 

If you want NGKs check out sparkplugs . com (remove spaces). They have pretty good prices on them.

 

I called GM and they told me not to worry about getting another set of plugs they say the stock ones will work great. I guess i should belive you guys before them. I just dont understand why GM think they know it all.

 

Talk to somone in the GMPP division that knows what they are talking about and what spark blowout is. They tell you they will be fine because if they dont they feel they are admitting their product is inferior, even though it is no longer being used in the designed application.

 

DUN4ME, I have an extra set of zex plugs(82003) if you want to pick them up here in kitchener $40 for 4. Let me know.