spark plugs = +15 hp / better gas milage? (Full Version)

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spark plugs = +15 hp / better gas milage?

pteam -> spark plugs = +15 hp / better gas milage? (5/27/2008 8:45:29 PM)
I'm reading an ad in the back of autoweek magazine that is an ad for pulstar spark plugs and it shows a dyno grapho of a nissan 350z increase of 11 horsepower and similar in torque. The 350z makes less horsepower than the h2 especially the 08 h2, would spark plugs like these or similar give +15 hp to the h2? Plus importantly better gas milage???? They got all sorts dyno results on their blog at http://pulstarplug.blogspot.com/ Anybody used these or have ideas? I would surely change right away for 15 horsepower and more importantly gas economy on the h2 limos.

rhill20 -> RE: spark plugs = +15 hp / better gas milage? (5/27/2008 9:27:29 PM)
Have no idea, but if you're changing your plugs anyway what could it hurt?

pteam -> RE: spark plugs = +15 hp / better gas milage? (5/27/2008 10:27:48 PM)
Well they are $25 a peice!!!

Hummer Dog -> RE: spark plugs = +15 hp / better gas milage? (5/28/2008 5:21:32 AM)
There's no way a plug change will give you a big HP or MPG gain on a stock engine, GM would've done it. They kill for every 1/10 mpg. Put a good quality plug in it and save your money for other mods.

Hummeron37s -> RE: spark plugs = +15 hp / better gas milage? (5/28/2008 7:23:16 AM)
$25 a plug, they trying to rape you.........

rhill20 -> RE: spark plugs = +15 hp / better gas milage? (5/29/2008 5:51:42 AM)
That is a little steep!

dwaxman1 -> RE: spark plugs = +15 hp / better gas milage? (5/29/2008 10:10:31 AM)
I have NGks plugs and Taylor thunder volt wires, and they work just great, and not $25 each!! as for more MPGs or more HPs?? Who the heck really knows, they say it should increase, I say I don;t really have a clue, nothing that jumps out at you at least.

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