Sponsored

S550 w/ S650 Interior & Rear Brakes Conversion

OP
OP
WolfMxbee

WolfMxbee

Well-Known Member
Joined
Sep 9, 2022
Threads
23
Messages
364
Reaction score
372
Location
California
First Name
Wolf
Vehicle(s)
2019 Ford Mustang Ecoboost, 2005 Ford F-150, 1995
So I made a drawing of my own wiring diagram, I will post it only as reference and a few things will change if anyone copies it, the wiring pinout will match the kia optima module, possibly the parking brake switch (s550) but cannot confirm the color wire changed from different year adaptations but assuming all will have a black for ground then the other would be power, the caliper wiring colors should remain the same, now for whats different, I purchased a dash harness to steal connectors from cause it was a whole lot cheaper, the connector for the parking brake switch (s650) was equipped with the physical button switch so it had 8 wires, I had cut the 2 that aren't needed for the hand brake switch, I did have to cut a little alignment plastic tab that wouldn't let me slide the button parking brake switch connector on to the handbrake switch, just grabbed a razer and cut it off and fits now (its like a little leg), My wiring diagram I will post with the factory colored wires, to colored wires I used to extend then to the associated wires for the optima parking module, let me show what I mean, cause all of this I had done back then before buttoning up the last interior installation to plan for the future
6269.webp
6253.webp

Only if you can't find the original pigtail for the specific handbrake parking lever like I wasn't able to, wait actually (sorry its been months, I just remembered) cut the switch itself, not the connector lol so reverse down below
6279.webp
 
Last edited:

NicksGTR

Well-Known Member
Joined
Oct 5, 2020
Threads
53
Messages
146
Reaction score
72
Location
Ohio
First Name
Craig
Vehicle(s)
2019 Ecoboost
Has anyone retrofitted a S650 active exhaust pipes to an S550? I'm just interested in pipe fitment not wiring the actuators.
 
OP
OP
WolfMxbee

WolfMxbee

Well-Known Member
Joined
Sep 9, 2022
Threads
23
Messages
364
Reaction score
372
Location
California
First Name
Wolf
Vehicle(s)
2019 Ford Mustang Ecoboost, 2005 Ford F-150, 1995
Has anyone retrofitted a S650 active exhaust pipes to an S550? I'm just interested in pipe fitment not wiring the actuators.
From what I've read, exhaust hangars are in different locations from S550 to S650, valve I read are also positioned in a different orientation then the S550's which may cause rubbing but not sure if it mentioned on the actuator or on the wiring but fitment appears to be the same
 

zackmd1

Well-Known Member
Joined
Oct 1, 2013
Threads
140
Messages
5,294
Reaction score
3,480
Location
Maryland
First Name
Zack
Vehicle(s)
1970 Mustang, 1965 AC Cobra, 2023 Ford Bronco 2Dr
yeah I’ve got the 6 speed auto so I’ll be looking to do something like this
Funny enough I just ordered my 500 console for my project. Will be making a custom top panel to be 3d printed to accommodate the physical shifter. I’ll post up the file when I’m done!

Following this electronic parking brake install for sure! I was going to use the wilwood controller but the Kia is significantly cheaper if it works!
 

Sponsored

EchoFiveR3531

Well-Known Member
Joined
Apr 23, 2025
Threads
0
Messages
45
Reaction score
46
Location
Chicagoland
Vehicle(s)
22 GT PP1 MT
@WolfMxbee
Did you ever get the alignment sorted out with the S650 knuckles?

I am looking forward to your progress on the brake controller. How did you figure out a Kia Optima brake controller would be viable?

I've seen the Pantera Electronics one used with a momentary switch on a similar project. The Pantera controller is about $350, the Optima idea seems more reasonable.
 
OP
OP
WolfMxbee

WolfMxbee

Well-Known Member
Joined
Sep 9, 2022
Threads
23
Messages
364
Reaction score
372
Location
California
First Name
Wolf
Vehicle(s)
2019 Ford Mustang Ecoboost, 2005 Ford F-150, 1995
@WolfMxbee
Did you ever get the alignment sorted out with the S650 knuckles?

I am looking forward to your progress on the brake controller. How did you figure out a Kia Optima brake controller would be viable?

I've seen the Pantera Electronics one used with a momentary switch on a similar project. The Pantera controller is about $350, the Optima idea seems more reasonable.
The knuckle project was a success, reasoning I could not tell you but all it took was a adjustble toe arm in the rear to get everything in spec and zero out, I could not tell you if its because of s550 stock arm length or if I had damaged my toe adjustment bolts on reinstallation, so knuckle was a success swap, as for the optima EPB Module, I had wanted to use one that didn't have a dedicated canbus system so I went with the 2016 module, has canbus to communicate with the kia's bcm for safety measures of when its activated or disengaged etc. But didn't use canbus to activate the actual commands, its still in theory but looking at the wiring diagram, it looked very simple which is my goal of simplicity, reason why i did not go aftermarket is because if this unit fails, it'll only set me back $50 and is plug and play once I wire it up vs aftermarket may still be plug and play, but if the unit dies out of warranty, I have to pay $$ lol
 

EchoFiveR3531

Well-Known Member
Joined
Apr 23, 2025
Threads
0
Messages
45
Reaction score
46
Location
Chicagoland
Vehicle(s)
22 GT PP1 MT
Makes perfect sense, I agree simpler is better. The function of the EPB isn't all that complicated. Finding a controller that will make it work like OEM is the challenge.

I called Range Industries and spoke with them about it. They have a page on their website discussing the S650 knuckle on S550 suspension.

They told me you can make the motor work manually with a momentary switch. The catch is you have to listen for the motor to find the end of its travel. Not exactly a convenient solution, I want an actual controller.
 
OP
OP
WolfMxbee

WolfMxbee

Well-Known Member
Joined
Sep 9, 2022
Threads
23
Messages
364
Reaction score
372
Location
California
First Name
Wolf
Vehicle(s)
2019 Ford Mustang Ecoboost, 2005 Ford F-150, 1995
Good news, I messaged a few people that 3D print parts and potentially still own a S550, only one responded so far and said he can try and make a delete panel for the handbrake, it will just be a flat blank delete panel you could mount switches too but says it'll take time which of course
 

John S

Well-Known Member
Joined
Jul 26, 2022
Threads
47
Messages
742
Reaction score
559
Location
Novi, Michigan
First Name
John
Vehicle(s)
2022 Mach 1 HP
Is the S650 rear Brembo brake system significantly better than the GT350 system? If the electric E-Brake adaption works, I'm all in for converting my Mach 1.
 

Sponsored
OP
OP
WolfMxbee

WolfMxbee

Well-Known Member
Joined
Sep 9, 2022
Threads
23
Messages
364
Reaction score
372
Location
California
First Name
Wolf
Vehicle(s)
2019 Ford Mustang Ecoboost, 2005 Ford F-150, 1995
Is the S650 rear Brembo brake system significantly better than the GT350 system? If the electric E-Brake adaption works, I'm all in for converting my Mach 1.
Its mainly to save cost and remaining budget friendly, the Gt350 system you have to swap knuckles still but also get the parking drum assembly, brackets, axles, etc. Plus when it comes to servicing the rotors and pads, will be pricey compared to the S650 swap where if your on a budget, you can simply go to any auto parts store and grab what you need quick and cheap, pretty much just trying a new route since I haven't seen anyone do the swap and figured I have no parking brake due to the S650 dash swap, figured I'd show everyone since I wanna get that fix lol but performance since then has way more bite and stops quicker however I am going to be upgrading my booster and master in the future to the performance package s550 ones when I do the S650 front 6 piston swap too
6526.webp

Just a quick search, i know it includes the front too but its 4k for the gt350 swap
https://lmr.com/item/M2300Y/mustang-ford-performance-gt350r-brake-kit-m-2300-y
 
OP
OP
WolfMxbee

WolfMxbee

Well-Known Member
Joined
Sep 9, 2022
Threads
23
Messages
364
Reaction score
372
Location
California
First Name
Wolf
Vehicle(s)
2019 Ford Mustang Ecoboost, 2005 Ford F-150, 1995
Also from what I read if anyone is interested, sadly I already swapped all x4 of my lower control arms in the front with the ford performance set with spherical bearings, the new S650 ball joints are extended to correct the center roll of the spindle when lowering the mustang since on S550s, it messes up the whole suspension geometry when lowering on stock arms, steeda made a whole video about it just incase anyone was curious, also one of my buddies has a S650 automatic GT w/ 3.55, he wants to trade my 3.31 differential for his so I'll confirm this too when the time comes but stoked! Btw subframe is the same and the differential casing looks identical but what I'm referring to is the output shaft or pinion flange itself
 

John S

Well-Known Member
Joined
Jul 26, 2022
Threads
47
Messages
742
Reaction score
559
Location
Novi, Michigan
First Name
John
Vehicle(s)
2022 Mach 1 HP
The Performance Pack/Brembo master cylinder has the incrementally larger piston bore (theoretically increased pedal effort) and matched booster, but I still have a hard time adjusting to such sensitive pedal force that feels overboosted for street use. The Ford performance GT350 swap kit is a better value than any AP Racing or Wilwood kit but it's still expensive so I will follow your lead on the S650 swap for my rear brake upgrade I'm thinking of doing as a winter project. (I wonder if the S650 electric disc E-Brake shares a common mount with other cable operated e-brake calipers? That could possibly simplify adaption to S550 by utilizing the existing mechanical hardware?)
 

zackmd1

Well-Known Member
Joined
Oct 1, 2013
Threads
140
Messages
5,294
Reaction score
3,480
Location
Maryland
First Name
Zack
Vehicle(s)
1970 Mustang, 1965 AC Cobra, 2023 Ford Bronco 2Dr
So.... Looks like if you use a GT500 Abs module then you are all set. No additional brake controller needed. Just need the wiring.

Screenshot 2026-08-30 at 9.30.44 PM.webp
 
OP
OP
WolfMxbee

WolfMxbee

Well-Known Member
Joined
Sep 9, 2022
Threads
23
Messages
364
Reaction score
372
Location
California
First Name
Wolf
Vehicle(s)
2019 Ford Mustang Ecoboost, 2005 Ford F-150, 1995
So.... Looks like if you use a GT500 Abs module then you are all set. No additional brake controller needed. Just need the wiring.

Screenshot 2026-08-30 at 9.30.44 PM.webp
Yea I looked into it but I could not source one with the pigtail connector included, also its part of the pump assembly
6574.webp
6572.webp
Sponsored

 
 








Top