Try going to another SC.

Did they try penetration oil ?

i dare not say. ask V12k

All 4 of them?

hope its help Stuck Spark Plug

oh my. so the bad site of firestorm is true 

RM78.06/batang nia

Where you get that RM300 figure?

Go other SC la...And complain that SC....Problem solved~~~

You didnt unplug FS when sending to servis? what else did you mod?

coolkwc also have FS, IINM he was able to keluarkan his spark plug also 

U go Pandan Jaya SC, they will serve u well~~~Near Econsave~~~

Maybe ask those who installed FS as well to see if they have any problems removing the spark plugs 

Is this your first spark plug change?

http://forum.lowyat.net/topic/2099257/all

before i make statement, i want t say sorry if you find this is not a good thing for those that installed FS, especially v12k . is not that i say FS is not good, but it is good that makes our gaga best car to drive

*
we all know FS make our sparplug spark more than usual. but when it spark more, this mean i create more heat. more heat created, it will melted spark plug component. as maxwell case, heat of sparkplug makes metal part melted a bit. i guess if melted then mengeras, really difficult to open sparkplug

so my opinion, if want to use FS, also use heavy duty spark plug e.g iridum kinda thingy

just my 2 cent opinion. please dont tembak me. its a ponion cost u 2 cent 

im also one of the owner that installed FS..
when i went for 20km service that time,
SC ppl help change my spark plug .. no issues.. (touch wood too)

sorry bro, i believe it just standard park plug from the SC..
didnt pay much attention on the brand they put in..

i see. and u change on 20k km. i think it still safe 

maxwell
the one that stuck is denso?