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do the splitfire coilpacks break also? there blue ones ive got in there. they were already in the car when i got it. i assume there splitfires coz i got a splitfire box with old black ones in it and the car has blue coilpacks in it.

Edited by joe blo

Have you had a look at the type, gap and condition of the current plugs yet mate?

Not much point in asking what plugs you should be using or if its the plugs causing a flatspot without finding those details out first :P

It's a bit risky gapping iridium plugs, but they can be done successfully. I can't remember for sure whether it was iridium or platinum plugs you shouldn't regap. It can be done, but you could stuff them up.

try going to a smaller gap before you go a colder plug. you may have a 1.1mm gap, or they may be 0.8mm plugs that are worn and the gap is now bigger than 0.8mm. pull the old plugs out and have a look at the code on them, as well as check the gap with a feeler gauge.

heat range 7 plugs are rather cold. if you are running huge amounts off boost then you can get away with it but if it is standard boost, or standard computer you may foul plugs quickly as they may not be be burning all of the fuel.

ideally you want to run as hot plugs as you can with as big of a gap that you can. this gives you the best burn.

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