[rdorman]

Doing some upgrades Clois? 15" will generally accommodate no more then a 12.19" rotor and not all will. You will have to measure to be sure and don't forget about the wheel weights if there are some sticking inside the rim. I like the wilwoods because they are reasonably priced, well made and readily available. There are a number of other really good, arguably better (such as AP who I am huge fan of), manufacturers out there but wilwood works for me. I like curved vein rotors of sufficient mass (since wheel is a limiting factor, you are looking to go wider), large pad surfaces and differentially sized multi piston calipers. If you are going to do some upgrades, take some measurements (temps etc) from your current system before you begin. IMO, chassis setup is #1.