The Mazsport website is showing a set of platinum NGK plugs that they say is compatible with the RX-8 at a much cheaper cost compared to the standard OE plugs. Does anyone have any experience with them? Thanks.

The plugs are:
http://www.mazsport.net/shop/index.p...=40&prevstart=
http://www.mazsport.net/shop/index.p...=40&prevstart=

 

If they are the one in the pics they areBUR9Eq and Bur7EQ you can get them locally for 6.99 each. I bought mine in NAPA autoparts, hell I bought a whol ebox for my 20b. But then again thats if they are the ones in the pic

 

Those are Rx7 plugs. you can get them *cheaply* at ur local autoparts store.

The thing with these plugs is that they fail *faster* than the stock RX8 plugs. I have yet to try them but lots of people said these plugs gives them a couple more horse comprare to stock rx8 plugs.

 

Most are getting 25k out of the cheaper plug and 35-50k out of the OEM. I remember when I would have to clean and adj gap every 4k on my earliest RX-2(back when there was a big build up of lead on them). I had a tech for Champion Spark plugs try some different plugs, N/C to me. The best plugs and I tried some of the exotic ones too were NGK for all my Rotary cars.

 

I think most turbo people use them. they work fine.

just change the plugs once a year. It only takes about 20 mins.

 

They work very well. I use them in mine, On 12 psi boost, came back from Tampa (Mazsport) use them on track and still working good after 10K KM (montreal)... And let me told you, I've gave them some pressure !

 

Are any extra shims required to use these?

 

dont use them, they are the wrong size for th renesis chamber and will cause a bulge in the housing during repeated heating/cooling.

Also, on a N/A they cause misfires and lost horsepower.

stick with the stock plugs.

 

Any recommandations ?

 

Those are platinum plugs... the factory spec for the the Reni is Iridium plugs.

The factory NGK plugs are available for $20 each here:

http://www.sparkplugs.com/results_ap...1&AAIA=1431319

 

Well, cant say 7 plugs doesnt work. many people have it and its working just fine.

but for N/A, I would rather stick with stock plugs.

stock plugs wasnt made for boost applications.