Getting ready to do the VF34, STI pinks and AP 2.5 map... What spark plugs should I get? I have searched around and noticed many use NGK BKR7E. Is the NGK V-Power's any good? I just need to know what kinda plugs I need.

 

NGK BKR7E are recomended because they are colder than stock. i run those

i dont believe in the iridium v power or anything else like that

 

So what kind of plug should I get in the NGK BKR7E? I dont understand which one it is...

Standard?

V-Power?

Platinum?

Iridium ?

 

laser platinum
they are 17$ a piece list

they are what im running on my vf 34


PFR6G NGK
4793 NGK Spark Plug
long number and short number for stock

so one step colder is pfr7g

 

Stock platinum plug on the left way expensive, 1 step colder copper on the right, way less expensive these are the one's I run with my COBB VF 34 map

 

I have to special order them... no one locally stocks the at all!!!

 

I had to order mine too I went to three parts stores lol that all we have in my town.

 

Advance Auto said I had to order in packs of ten and buy all ten since they never sell them or stock them.

 

I order any spark plugs from clubplug.net. They have a flat rate shipping charge of $6.95, so if you ordering larger quantities for yourself or your friends becomes a better deal.

Here is an older thread on the topic of spark plugs which may be useful. I use the NGK Iridium BKR7EIX. The link to the NGK Iridium page is no longer valid in the older thread because their site has changed but they still stock everything currently available. Just use their scroll down menus to locate the type of plug you want.

Copper plugs perform the best because copper has the highest conductivity (lowest electrical resistance) of currently produced spark plug center electrodes but I am not able to change plugs regularly on my car, hence I use longer lasting Iridium plugs at one heat range colder than stock (BKR7EIX). It's best to replace copper plugs regularly (some recommend every 3000 miles) for best performance and fuel economy although you might be able to stretch it out longer if you drive moderately as the Subaru turbo engine ignition system is pretty efficient. If you try to go longer than a year, the copper center electrode and side electrode will probably be pretty rounded off and less efficient.

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