Probably the same supplier for both. The Mustang rotor is vented. Unlike the Z31 rotor, it has to be drilled for four lug. I plan to make a drill jig to make replacement rotors easier. 

That's why I'm having all this conversation. I priced out rebuilding the stock setup drums and to get new wheel cylinders is like 500 bucks alone! Hence the disc deal, I probably don't "need" a stage 4 kit as I won't be tracking the car but I do want a combo that works good. I just have a hard time pulling a 1000 bucks out just for rear brakes, but it is what it is. I'm always abeleiver in stopping power, I'm Gunna geek out and read lots today, maybe I'll find another smaller set up that's effective. But I think no matter what I'm committed to at least 400 bucks for the brackets etc. It does seem thier package deal is cheaper then piecing the mustang job together locally. I might blow my wad on front and rear brakes, bearings, bushings then ill be outfitted for a full roller and be left wihh getting the stock engine online for inspection. Stand down on the rb desires for a yr

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9 hours ago, Elliott000 said:

That's why I'm having all this conversation. I priced out rebuilding the stock setup drums and to get new wheel cylinders is like 500 bucks alone! Hence the disc deal, I probably don't "need" a stage 4 kit as I won't be tracking the car but I do want a combo that works good. I just have a hard time pulling a 1000 bucks out just for rear brakes, but it is what it is. I'm always abeleiver in stopping power, I'm Gunna geek out and read lots today, maybe I'll find another smaller set up that's effective. But I think no matter what I'm committed to at least 400 bucks for the brackets etc. It does seem thier package deal is cheaper then piecing the mustang job together locally. I might blow my wad on front and rear brakes, bearings, bushings then ill be outfitted for a full roller and be left wihh getting the stock engine online for inspection. Stand down on the rb desires for a yr

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That's actually not a bad idea. Many people get the cart before the horse when they get the extra horsepower before they get the extra braking. Much wiser to improve the braking then improve the "Go"

12 hours ago, grannyknot said:

. The piston must be a lager diameter, the Mustang is a much heavier car.

According to Rockauto, the Mustang is a 43mm and the Maxima is a 38mm

1 hour ago, Jeff G 78 said:

According to Rockauto, the Mustang is a 43mm and the Maxima is a 38mm

Jeff, what are the years of that Mustang GT?

I think the calipers in the silvermine stage 4 kit are 00 to 05 stang

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They should be S197 which is 2005-2014. I looked up 2010, I think but it doesn’t matter. 

I did it, I but the bullet and went all out. Silvermine stage 4 all around and 15/16 master cylinder.... In terms of replacement pieces and pads, the fronts are the Toyota 4runner calipers but I would like to confirm what the rears are exactly, i emailed the guy to hopefully confirm.

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5 minutes ago, Elliott000 said:

I did it, I but the bullet and went all out. Silvermine stage 4 all around and 15/16 master cylinder

I priced out that kit last night as individual pieces  and the price Silvermine is asking is pretty much on the dot, so it's a good deal to get it all bundled like that. It might be a good idea to get a drop box in Blaine, Washington and drive over to pick it up, UPS/FEDX will rape you on that order.

Good to go on that, I have a box in point roberts. Ordered some motorsport stuff too in the way of carpet and seat kits. I'll claim that cheaper order and smuggle the silvermine one haha.

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My friend is going to go back and get the part numbers for me on the exact rotor and calipers so we can determine the model years of each.

1 hour ago, Elliott000 said:

Good to go on that, I have a box in point roberts. Ordered some motorsport stuff too in the way of carpet and seat kits. I'll claim that cheaper order and smuggle the silvermine one haha.

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Have you considered the Arizona Z Car setup? $795 and he has a new setup for using the Wilwood rear park brake too for this kit. I have a set of these and they are awesome looking units. I am waiting for the park brake setup to arrive to install them. The fronts are already on my car.