got a buddy of mine with a 06 si 55k on it and he about to change the plugs in it, the car is basicly stock just cat back tb spacer and drop in filter, he was wanting to goto a lil hotter plug any suggestion?

 

you drive a 500HP car...I'm sure you more than capable of suggesting a proper plug for your buddy.

truth be told.....there is no real reason to change the heat range of the plugs. especially if he just has bolt-ons.

 

stock OEM plugs is all you need.

 

plugs are good till about 100k and unless he has Fi/nitrous n o need to change

 

 

he can try the pulstar plugs which is what i have, and its a great replacement.
i love them.

 

Can you really tell any difference between the pulstar's and the oem?

 

yea. i acutally bought both denso platinum and the pulstars brand new.
and i just drove to work like a granny shifting at 3k with no more than half throttle and going 70 mph on the freeway and i managed to achieve 29 mpg with the densos and i got 32 mpg with the pulstars. and the pulstars claim to add more power, which is hardly noticeable. maybe 1 or 2hp. also considering that they both cost about the same. the pulstars running 24.95 a piece + tax and shipping which was like 112.xx after it all and the dealer wants about 106+ tax for denso platinums which comes out a hair over 112. but overall i saw an increase of about 26 mpt on average with the pulstars compared to the denso. i filled up every 5 days after i got off work at the same chevron down the street from where i used to work. the shipping wasnt that bad either. it was like 3 business days. and another thing about pulstar, they will actually call you and ask you how you like their pulse plugs

 

Good to hear. I wouldn't even mind if the plugs didn't add any more power so long as they help with fuel economy.

 

yea true. thats the only thing those darn single cams can brag about =P

im jk jk i love you r18 guys no homo