yes the plugs needed are different, you can order them at ford for pretty darm cheap. Just MAKE SURE YOU TELL THEM AND TRIPLE CHECK THEY ARE 2003/2004 cobra mustang versions. I ordered some and they were the normal ones~ Once you get them just cut the old off and spice these in-line and your done.
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2003 REDFIRE COBRA #3938 of 5082 @ 05/27/2003 1 of 414
MGW Shifter, Stingers, JLT, SS Inserts, MM FLSFC & CC Plates, SS Lines, H&R Race springs, IRS Brace, MRT Hood Struts
ME.com Member #29 - 400rwhp/380rwtq
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