Spark Plugs

Its time for new spark plugs but i cant decide between Bosch Platinum+4 or AC Delco rapidfire. Any advice or segestions on other spark plugs. Thanks

[j-work]

I went with iridium

[2fst4u]

go with the ngk ones. they work pretty darn well. i saw an improvement in my performance, because they burn a tad bit hotter than stock ones.

[Oldsman]

bosch +4 are not worth the money.

i went with bosch double platium and they work good. but between your 2 choices i say rapidfire

[Fast Eddie]

you want longevity or performance?

looking for performance

[AndysGX]

Originally posted by Oldsman@Jan 20 2006, 07:03 PM
bosch +4 are not worth the money.

Werd.

[jabartram]

I went with Denso Iridium in my 6, excellent plugs, just expensive.

[pawzbear]

the regular bosch platinums. the +4's are silly, it was just another way to rip off soccer moms (in general, those with very little automotive knowledge) by claiming theyre better plugs... and they arent.
there is no magic solution of spark plugs that will make your car faster. just dont get chincy ones. bosch is the way to go on pretty much any vehicle...

[AndysGX]

Just FYI, there's now a how to for changing 2.4L plugs. Has pics too.

[Fast Eddie]

Originally posted by RGValero@Jan 20 2006, 07:33 PM
looking for performance

Quoted post

Just get some name brand copper plugs. Copper has less resistance than platinum and thus allow more energy through the plug. The +4s and what not distribute the spark better across the CC (with less power/spark) but its really not needed on most newer vehicles. You should replace em more often, say 50K miles, but they are less expensive and give better performance. My stock ones (platinum) were pretty worn after ~47K miles so out they went for some new copper ones.

[Fast Eddie]

Originally posted by pawzbear@Jan 22 2006, 03:18 PM
bosch is the way to go on pretty much any vehicle...

Quoted post

unless its Japanese or American