ok i have been searching for 1 step colder copper plugs i see that the 7173's are non resistive but i would like to use a resistor type. I have found that 4776's are good but they are a 7 heat range. Anyone know of anything that is a 8 heat range. I have ngk iridums right now but they are too expensive to keep replacing.

 

You got to pay to play!
Don't cheap out.. Buy the BKR8EIX NGK iridiums and be done with it!
You can't afford 36 dollars and your FI?

 

 

None I am aware of, allot of us run those iridium 2668's mentioned above. You should have to replace your engine before you need to change these plugs. I've got 40k on mine and they still look like new. I'll get another 40k out of them I'm sure. Worth every penny!

7173's are garbage, don't waste your time.

 

BKR8EIX 2668

This is what happens with non-iridium/platinum plugs.
It may be somewhat ok for regular cars but would throw your tune off and you don't want that investment to blow up because you were cheap.

 

I agree.

 

I've found the BKR8EIX NGK iridiums for $28 shipped for a set on the internet.

Don't cheap out on something so important. Plus these will last longer so will be even in the end in cost.

http://www.bonanzle.com/booths/ngk/items/4...__stock___2668_

 

NGK 2668 (BKR8EIX)

If you want to use a copper plug
A lot cheaper if you want to change them out at every oil changeor after a full day of racing.


NGK BKR8E-11used in honda boats

for $28 you could get 15 of these with shipping.
Your Price: $1.64
http://www.hondapartsnow.com/genuine/honda...8079-5814E.html


Price: $2.24
http://www.boats.net/parts/detail/ho...079-5814E.html

 

Copper is the way to go. Not many people know those plugs are available.

 

Changing out spark plugs every oil change would just be a royal pain in the ass. No thank you! haha.