NGK Iridium spark plugs

[omgjacki]

Originally Posted by Nick Merrone

well....i've rocked the BKR7E's for a little, then threw in the iridiums...if you put the plug and wire up against the head, youll see which has more spark, the ngk-r's have alot more spark then my iridiums, but i might have gotten a dud pack..who knows.

do not use the bosch iridiums, they look better cause of that four prong thingy. but everyone says they suck with ka's.

Yeah but when your car is parked you're not going to know the difference. Yeah, maybe a little but I need to know how they work under load with heavy acceleration and all that jazz.

[turboman808]

Originally Posted by Nick Merrone

do not use the bosch iridiums, they look better cause of that four prong thingy. but everyone says they suck with ka's.

Bosch makes tons of great products but yeah I don't think those 4 prong spark plugs would work very well. Seems to me you would be more likely to kill the spark since it is spread out in 4 directions instead of one. But they do look pretty cool.


I can never remember if I get NGK or Denso. Both work and I kinda just grab one or the other. Pretty sure I have NGK iridium in both my sports cars.

[jpalamar]

Copper conducts better but doesn't last as long. Iradium lasts longer but isn't quite as good. Honestly, unless you are putting 600+ HP down you probally won't even notice the difference.

[TurboTagTeam]

Originally Posted by R22B

Oh dang that doesn't sound pleasant. When I ran without an exhaust, I had that a lot under decel ;). I found out gapped my plugs incorrectly when I put iridiums in... I had them at .044 on my WRX!!! Wednesday I fixed that with NGK R's and gapped them to .030.

Pops, bangs, booms, cracks... its the normal life when you drive a Subaru

Popping under decel with no exhaust is normal. When your blowing out the spark you'll hear popping while accelerating.