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cfguy2000 · 12-07-2010, 08:57 AM

I have had Bosch Iridium +4's in my 97 Corolla for about a year. I don't think it made much of a difference for power or economy. Supposedly the Iridium plugs can last over 100,000 miles.

12-07-2010, 08:57 AM	#8 (permalink)
cfguy2000 imported Appalachian Join Date: Jan 2010 Location: Asheville, NC Posts: 70 Yoda - '97 Toyota Corolla Base 90 day: 30.51 mpg (US) She-Ra - '03 Honda Accord EX 90 day: 22.91 mpg (US) Thor - '04 Toyota 4Runner SR5 90 day: 18.26 mpg (US) Thanks: 49 Thanked 3 Times in 3 Posts	I have had Bosch Iridium +4's in my 97 Corolla for about a year. I don't think it made much of a difference for power or economy. Supposedly the Iridium plugs can last over 100,000 miles.