Amazon is running a double deal on ACDelco spark plugs. Get 4 for price of 3 plus save extra $2 each on a mail-in rebate offer thats also goin on. After rebate it comes out to $4.56 a plug.

ACDelco Professional Iridium Spark Plug MIR $2.00 each


http://www.amazon.com/gp/part-fin...1824194722