I'm changing out my sparkplugs soon, thinking of a set of Iridium plugs from either NGK or Bosch. What do you guys think? I know plugs are maintanence and not mods, but that doesn't mean one can't be any better than the others? Discuss.

 

NGK BKR7E Copper plugs have been very very good to me.
The ZEX plugs I tried....not good to me. I haven't tried Bosch.

I do know that you can't go wrong with a set of NGK BKR7E Copper plugs.

EDIT: I just noticed you have a different motor. Well NGKs are good plugs anyway.

Good luck bro.

 

agreed. NGK coppers have been nothing but perfect for me.

 

I have NGK iridiums and i love them!

 

how about Delco?

 

i got bosch +4's i like them...they're alright, i've only had them for 200 miles though

 

i voted on NGKs just because the shop i work in has always installed them on every forced induction/ nitrous job we have ever done and not one has ever come back and we havent had not one problem from them.

 

Wow, 13:1 so far for NGK.

 

Ngk.

 

Autolite Platinum!

 

NGK.

 

28: 3.. .wow

 

i have the NGK coppers in my supercharger 2.4L and they're great. no problems whatsoever.

 

I had A GM Tech here in louisiana tell me that NGK plugs are to hot for ecotec motors. I dont know i have never used them.

 

they have the ngk iridiums and the bosch fusions (iridium) more people use ngk so they will vote ngk. its on you though. either one will be fine

 

either will probably suit you fine

 

I tried the NGK's, like the Delco better.

Stu

 

i had a tech tell me the NGK's and Bosch are both horrible for our vehicles and the AC Delcos are the best for these vehicles...

*note* not a GM tech and All-American Car Tech

 

plz before making a choice plz refer to this forum of a unlucky member here is link https://www.cobaltss.net/forums/problems-service-maintenance-69/hackabuses-car-down-82912/ if you are a victum to this contact the maker because they are frying up cars!!!!!!!!!

 

i have heard nothing but bad things about the bosch plugs. i have the ngk plugs with my stage 2 and they work great

 

Hey I put bosch +4's in mine at about 10,000mi and I'm at 18,000 with no problems at all. I usually run 91 as well though with gas prices the way they are I think my motorcycles going to be getting more action soon. I can understand where these people had problems with the BOSCH ones....they're tricky to install, my thin wall spark plug socket wouldn't install them all the way, so I'd have to get it threaded with the socket and then pull the socket off of the plug and get just enough socket over the edges to tighten the in....its not easy, and if not done right can lead to the misfire and fry problems people have had.

 

Why would you need to put anything other than the stock AC Delco's in an NA car?

 

The reason you haven't had a problem and wont is because your 07 doesn't have the same ignition system as an 05 or 06. The first gen ignition system is called compression sense ignition, the 07 and later is a standard ignition system with a cam sensor. Compression sense ignition system is a Saturn creation and pretty complicated to explain here. For those who care http://findarticles.com/p/articles/m...11/ai_n9469461. However I would never use anything other than GM simply because GM maintains a higher quality product

 

Those of you with a SS/SC and that have the NGK plugs,do you have the copper plugs or the iridiums?

Bump!!

 

Oh, I didn't know when they switched the ignitions on our cars. I had heard droplets about it but didn't know any more of the details. I find that a lot of the after market plugs and stuff that you can add to your car sometimes do better than the brand name GM stuff. Personally I wish I could put Buell piston heads in my car and change the compression cloud (haha would almost be possible- as long as the stroke/bore are the same, alas they are not) but even on my Buell I noticed a severe difference on the stock plugs and the upgraded performance ones from the motorcycle shops in the lower RPMs, I assume the same principles apply to a car.....make it more efficient at something, and it'll perform better overall?
Don't shoot me, bikes are my things, not cars, I've been riding Buells since I was 16, and had a car since March......