Do some research. There are a few old threads about this. I think I read it on both, but found more info on FJ if I remember correctly.
And I have one sitting in my garage for the day that I finally open the valve cover.
04 ZX3 RIP [Best Non-SVT FITF12][3/13 ROTM][7/14 ROTM][2014 ROTY][Best Engineered FF14]
01 SE The V8 Estate [Organizers Choice FF15]
02 SE The SVTedan
12 SE Hatch Sport & Winter Package, ST Front End