Roger
New member
JMO and observation i installed some E3 spark plugs in my 2009 scion XB they say better gas mileage and more power. Well when i removed the old plugs {which only had 3000 miles on them} they were NGK IRIDIUM which are really good to begin with. so i put the new plugs in and yes their was some great increase in hp. I can not say anything about gas mileage improvement cause i have not checked yet. i mention this because their are guys and gals looking for more power in their spyder. I dont know what plug the spyder uses so i will post the website and maybe somebody can do a cross reference. These plugs are pregapped if you look at them you will see why. Maybe somebody will try them and give a report if they have ones that fit. www.e3sparkplugs.com. :clap::clap::clap: