Description
Benefits
- Maximizes Stopping Power
- Aggressive Custom Appearance
- Wilwood Quality
Features
- Retains OE Master Cylinder
- 2-Piece Rotor Set-Up
- Improved Track Performance
What’s in the Box
- (2) 4 Piston Calipers
- (2) E-Brake Calipers
- (2) Rotor Hats
- (2) Rotors
- (2) Hydraulic Brake Lines
- (2) E- Brake Cables
- (2) Caliper Adapters
- (1) Set Brake Pads
- (1) Set E-Brake Pads
- Hardware
Wilwood AERO4 Rear Brake Kit
Upgrading the braking system on Mustangs has always been a popular thing to do. Rightfully so when you have HUGE brake kits like the AERO4 Rear Big Brake Kit from Wilwood! This kit comes loaded with 14″ 2-piece rotors, red 4-piston calipers, performance brake pads, adapter brackets, and all needed hardware to get your 2015-2023 S550 Mustang looking and performing its best.
Track Performance
This is one of the largest brake kits out on the market for S550 Mustangs. If you plan on running your S550 on the track, you need to be prepared to brake hard when you need to! This kit has more than enough stopping power to allow you to drive your S550 with precision and confidence so you can lead the pack at the track.
Wilwood Quality
Perhaps one of the biggest names in the game of brakes, Wilwood has been around long enough to have a reputation that is hard to beat. With the highest of high-quality materials and products that are manufactured and distributed by Wilwood, the Wilwood name has built a legacy that is none less than the best when it comes to your Mustang brake needs.
Fitment Note
This kit requires a minimum 18″ wheel for clearance. Reference installation instructions to verify wheel fitment.
Application
-Fits 2015-2023 Ford Mustangs






Kay Mills –
Awesome
Philip King –
I like
Amanda –
I am 6 feet tall and 220 lbs. This shirt fit me perfectly in the chest and shoulders. My only complaint is that it is so long! I like to wear polo shirts untucked. This shirt goes completely past my rear end. If I wore it with ordinary shorts, you probably wouldnt be able to see the shorts at all – completely hidden by the shirt. It needs to be 4 to 5 inches shorter in terms of length to suit me. I have many RL polo shirts, and this one is by far the longest. I dont understand why.
Ervin Arlington –
The shirt was not the fabric I believed it to be. It says Classic Fit but was made like the older versions, not the soft cotton like my others. I don’t understand how the labels are the same but a completely different shirt. Oh well, stuck with it now.
Patrick M. Newman –
Real authentic genuine quality however it fit me like an XL size when In fact Im L. Beware