research, trial and error?? idk man 32 seems small. even with a header and cai its gunna be a turd. no offense. but your gunna be workin that poor thing hard with big tires.I have a 2001 2.4l 2wd frontier. I have a 3" body lift and new UCA's and Shackels. Making it 6" in the front and 4.5" in the back. Now i know that bigger tires will slow me down so im gettin a wep-r intake and pacesetter headers to make up for the lost HP. I want to run a MT tire and Cragar soft 8 wheels from summit. I want to know if you all have any idea of what size tire and wheel combination would be the best for my truck. I was thinking of 32x1100x15 on 15x8 wheel.
Thanks for any help.