IS250 to IS350 brake upgrade.
Parts you will need:
IS350 brake calipers, pads, rotors, and backing plates. (you can get everything but the backing plates at your auto parts store.)
Recommend- aftermarket stainless steel or braided brake lines.
Tools you will need:
Jack (you know the first step is to jack up the car)
wheel chocks
Jack stands (a must!)
Wheel lug and key if needed
21mm(for wheel nuts)
17mm wrench (for all caliper and have bolts, you can reuse your factory caliper bolts on the new caliper)
10mm socket
10mm wrench(for bleeding)
14mm
Pick
hammer or mallet (for getting those pesky hot bolts out and knocking the hub loose)
brake fluid
gloves, gloves and gloves
rag you can toss out.
empty bottle and hose (for bleeding)
60-75 mins including prep and clean up.
If you don't put something down you're going to need concrete cleaner. I recommend Oil Vanish.