It shouldn't be a hard decision, but I keep seeing different reviews on which plug to use on our cars. I have an EVO 8, 450 AWHP, it is time it replace the plugs, I am thinking of continuing the route of BR7ES - should I look at getting a colder plug, or continue this plug with .020 gapping. Have any people had better luck with a different plug?

 

You should be running bPr7es. Gapped at .020". As far as running a colder plug, each setup and tune is different. You need to read the plug.

 

BPR7ES are great, and gapped around 20. I also tried the BR7ES (non protruded tip) but ended up back with the BPR. Great plug, available locally, it really IS an easy decision.

 

I accidentally got BR's, once....they caused misfire when in boost. Switched back to BPR's and all was good, and still is...

 

I got them on purpose just to try, and had similar results lol

 

As everyone stated bpr7s have never failed me on 8s.

Since I own a 9, I get screwed over and get to shell out $50 for plugs

 

Why is that what's the difference between the 8s plugs vs the 9 just curious are they not the same motor ?

 

Cylinder head is different, it uses a different diameter spark plug..

 

steeling this thread since i have the evo 9 ive been using the iridium ix. the dealer recommended the ilh7 laser plugs. wich ones are best ?

 

I'm running Denso Iridium IKH24s on my Evo IX with full bolt ons. They've worked well for me so far, about 12,000 miles on them.

 

This is a questions that you should direct to your tuner. I know if I switched my plugs after getting tuned my tuner would kick my ***.

 

I would recommend NGK BPR8EIX gapped at .020"

I prefer the laser Iridiums to copper.

 

How long do those copper plugs last you?