darkphantom

iTrader: (2)

10 bucks for 10=heat range
http://www.racingbeat.com/resultset....rtNumber=11524.


rx7.com charges around 30 bucks
http://www.rx7.com/store/rx7/fdignition.html.




10 bucks is pretty cheap. the cheapest i found while others charges 30-40 bucks

smg944

iTrader: (34)

depends on which ones you use. i have used several types. i love the ones i have they are ngk v-power and 10 deg. heat range. i used all 9's and they fouled on me often plus i got break up with them. btw i pay 1.90 a plug . ngk v-power r5671a-10.

the_glass_man

iTrader: (2)

https://www.rx7club.com/single-turbo-rx-7s-23/cheapest-place-buy-ngk-6725-11-5-plugs-494990/

hus

Is there a need for this? I mean running 10.5s and 11s and 11.5s? I just changed my plugs from the standard 7/9 setup and went to all 9s. I know smg944 said he was fouling out a lot with the all 9 setup but how much more will I benefit in using 10.5s and so on? Is this mainly just a good idea for those 400hp+ FDs? Thanks.

the_glass_man

iTrader: (2)

Yes. Otherwise don't worry about it and continue to run all 9's.

darkphantom

iTrader: (2)

im pushing 470 so i got 2 9's=leading and 2 10's=trailings

hus

Good deal then.