I bought the bosch platinum +4's so maybe my result will be a little different when i get mine

 

Hack you will love them especially with your B&m it will make you ride much more enjoyable

 

Cant wait

 

I just picked some up at Autozone. They were going to be 32$, but they gave me a ten percent discount because my badge was showing. , so they ended up being around $28.
Bosch also has a new line out called Platinum Fusion. It looks like a four pronged plug, but it's tipped different. Any word on these?
I went ahead and got the platinum fours since it's tried and true here on the forums, but I'm curious now?

 

I'm sure there's someone with some knowledge of them, but first put on those fours and tell us how it is, I live 1 mile from Autozone and I have time to go get them right now if they are worth it.

 

Jesus man I just got them thirty minutes ago. Let me get off work first.
lol

 

hurrey up!

 

Ok here's what you all have been waiting for. These plugs ARE worth the buy, even though its like $28.16. It gives more response thoughout the entire RPM spectrum MAINLY the low end 1-3k which is good because VVT takes care of 4k+. When you shift you will notice a quicker, more powerful, and smooth engagement. There is literally no hesitation anymore I noticed and slightly better accel from a dig as Cloudio puts it.So IMO its a good buy and I love it. Takes about 20-30 mins install, not hard just time consuming. Also it takes a 10mm socket and a 5/8 I'm pretty sure. All you need are those 2 sockets and needle nose pliers to grab the old spark plugs out of the hole. Once installed drive about a mile or 2 and you will start to notice the difference.

 

awsome, thanks so much, I'm getting these plus 4's on Friday

 

yup me to, hopefully tommorow! thats awesome is there a difference between the 2's and the 4's?

 

would these be good for boost or no?

 

Is there a specific part number for the bosch plugs ?

 

Ahem.
I got them installed today about 5:30pm. Then I promptly fell asleep on the couch until about an hour ago. Sorry.
I SWEAR I notice slightly less hesitation on acceleration while rolling. I have an auto and when it's in "D" the engine takes about a full firing cycle (maybe 2/10ths of a second??) before the power kicks in. With these in, I can tell the power is coming sooner. As far as the low gears go. The hesitation was almost non-existant before. Now it's even less noticable.
From the dig, Hard starts in all gears are great, but they were great before, I'm just not good enough of a driver to tell the difference(Hey, it's not my fault chevy makes a good car), But I'll go with what others before me have said that it does make a difference.

The MOST apparant thing that I noticed was that the old AC delco plugs were already showing discoloration and tarnish from the heat. I've only had the car for four months. I've put Bosch Platinum 1's in my old truck(with a busted water pump, so I know it ran hot) and pulled them out a year later, they still looked almost brand new.
I think that these will stand up to the heat better over the long run with less problems. So I'm glad I did it.

Installation takes about 25-30 minutes. As someone quoted before. You'll need a 5/8 spark plug socket AND A LONG EXTENDER! (possibly two) I can't stress that enough. The plugs sit about four inchs down in the block and I needed a two inch entender, plus a swivel extension with a reducer on the end. You'll also need another sized socket to remove four bolts holding down the spark plug wire harnesses. I can't remember the size but it wasn't anything funky that you won't have.
The plastic cover over the top comes off easy. Just remove the oil cap. and the top left corner is held in with a small ball joint type plug, just pull straight up on both sides and it should pop right off.

 

if you have a spark plug socket, you won't need the pliers.

for those that are not in the know, spark plug sockets have a rubber boot inside. it does two thinggs, first it holds the plug, second it keeps it from getting inserted off center.

here's a few tips from someone that's plug in a lot of plugs.

always use a bit of dielectric compound on the threads and where the boot slips. just a bit.

always thread the plug in hand tight before using a wrench. in the case of a hard to get to plug, take the handle off of the extension and turn it by hand, make sure it is smooth and FULLY seated, then tighten it VERY slightly.

inspect the plugs you take out. they should be intact and be somewhat clean. if they're caked in dirt or broken, something is wrong. or, you've left them in there a LONG time.

finally.

after a change, and the car starts and runs normally, let it warm up fully before beating on it, it takes a while for new plugs to develop just the right amount of filth.

oh, and in the event that something IS wrong... let the car sit for like 3 hours before you try and pull them out. they get hot FAST. 20 seconds of idle is enough to make them super hot.

 

from word of mouth the bosh 4's will snap, and i've heard preform the same but havent seen any actual data.

http://www.boschautoparts.com/Produc.../Platinum2.htm
http://www.boschautoparts.com/Produc.../Platinum4.htm

Anyone try the NGK's yet? The increase in preformance you might feel in the lower end is due to the amount of knock retard you see with the combination of stock tune and crappy plugs. I'm not sure what the results are on a dyno, but unlike popular believe, it does make a difference on our cars and will matter even more when you start tuning.

Next stop, injectors.

 

Thanks alot Cloudio!

 

hmm odd...i've never heard anyone speak well of these plugs

 

Bosch 4's dont snap thats some bullshit rumor that got started on some ricer forumn
there american made and in my opinion the best plugs you can get take my word i have buddies who have been using bosch 4's since there release and have over 100,000 miles on there cars and the bosch 4's are still kicking ass for them ....

dont believe everything you hear because 99% its always false information

you know how many people say are cars are peices of **** and that the cranks fail after 15k miles and this other bullshit etc........

that just goes to show people make fun and say bad **** when there jealous
which is exactly why he si's talk **** because they wish they had bought a chevy cobalt ss lol
dont ngk thats what they run in ricers ........ in an aftermarket world ngk's are bout equal to ac delco

anyway Bosch 4's FTW
and if your still ass hurt about what some idiot on the ricer forumns commented not even like it happened to him ....
then get the bosch 2's

I ve had both and after going bosch and feeling the difference you wont want any other plug.......

hope this helped guys sorry about get so pissed its just I hate when people say crap about stuff they dont know anything about

 

i had them on my cavy that had 40,ooo miles on it then the engine died but i cant really say it was the spark plugs fault though inever found out cuz i towed that pos to the dealer to trade it in lol

 

I just installed Bosh platnum 4s today and I would recomend them to anybody.
I have noticed that the idle is now smoth and the acceleration improvement is more then I thought it would be there is a very notice able differnce(I can break the tires loose any were I want)

If you dont have these plugs go out and buy them.

 

Yeah, all the information stated so far is true. I don't think they would break and I have never heard anything bad about them until this rumor or whatever. I never really took an interest into upgrading plugs until I found out what difference it makes. I also noticed that the 2nd to 3rd shift is very noticeably stronger and it almost feels like driving the SS/SC where you can roast 2nd from 1st. The plugs definitely help in that aspect and even when it's cold out the engine has almost zero hesitation. Today was the first time my car had been frozen and I didn't notice any stutters like it used to. And like That Cobalt LT Guy said you can definitely break loose wherever you want. Good plugs

 

I have a 2.2 auto with a auto trans intercepter and I can break lose its amazing how $23.58 worth of plugs can make so much of a differnce. BOSH FTW

 

yeah, i just tossed in a set of +4s today to see if people are right, they do make a diff. it's not like HUGE, but you can feel it at part throttle low rpm, which is really where you want it.

AND!!!!!!!! since i was at it, i made a nice how to upgrade your plugz0r video. look for that later on tonight.

 

HAHA TOLD YOU GUYS YOU WOULD LOVE THEM

take it easy

 

so let me get this straight...bosche platinum 4's FTW?