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View Full Version : HKS Spark plugs???

Tuqwik4u
11-24-2010, 03:03 AM
I checked out some Evo X's mod list's and quite a few of them listed these Hks spark plugs. I was wondering what you guys think of these? Good idea? Anyone tried these yet? I'm probably going to order some soon. Mike...Brian...? Thanks in advance.

http://cgi.ebay.com/HKS-SUPER-FIRE-RACING-SPARK-PLUGS-MITSUBISHI-EVO-10-/130393481644?pt=AU_Car_Parts_Accessories&hash=item1e5c0ea1ac
Tuqwik4u
11-24-2010, 03:19 PM
.......:rolleyes:
MikeW-RRE
11-24-2010, 03:56 PM
Not going to make any power for mere mortals. If you'll be running things nuclear hot you could put in factory X plugs.

Mike W
Tuqwik4u
11-25-2010, 01:01 AM
What if i ordered the 1 step colder Hks plugs? So X plugs would do me some good?
MikeW-RRE
11-25-2010, 03:19 AM
You would be poorer and no faster.

RalliArt plugs will be fine for you up to and over 300 whp. EVO X plugs like I said if you turn all the knobs to 11 and are running up to 500 whp. Beyond that, sure, spend some money on some HK$ plugs.

Mike W
RALM
11-17-2012, 07:52 AM
You would be poorer and no faster.

RalliArt plugs will be fine for you up to and over 300 whp. EVO X plugs like I said if you turn all the knobs to 11 and are running up to 500 whp. Beyond that, sure, spend some money on some HK$ plugs.

Mike W

So what heat range should be used once a RA is making around or a little more then 300hp (in example 9 or 8 heat range)?