Coupe Brembo Retrofit

84FordMan · Feb 12, 2015

On the Genesis Coupe I owned, I had base brakes (Single piston fronts and rears) and it sucked. Back then I grabbed a front set of four piston calipers off of a 2009 4.6 Sedan and it was pretty much a bolt-on affair. Much improved braking. I never did the rear, as it required a new caliper and mounting bracket to accommodate the slightly thicker (And vented!) Sedan rotor and I did not think that little difference would of done much.

However, on the front, I was limited to Sedan pads and Sedan rotors and over time found the choices quite lacking.

Fast forward to today, and I'm getting ready for the Sedan's maiden voyage on the Tail of the Dragon in April and wanted better brakes. So what did I do?

Yup, I went out and bought Brembo calipers off of a Genesis Coupe. Here's why:

- Much larger pad and rotor selection
- Monoblock design
- Lighter than the front Mando 4-piston calipers (Reduced unsprung weight!)
- Slightly larger diameter rotors (10mm larger on front, but 4 lbs lighter each! 16mm larger on the rear, but 4 lbs heavier each)
- Clears factory 18" wheels
- Looks damn good

Front fitment is guaranteed, rear I'm not sure of (Since I never did the Sedan rears on my Coupe). Over the coming weeks we will see.

Ambush · Feb 12, 2015

SICK! Tell me how it goes...I just put brakes on my genny...felt like I was wasting time..no crossdrilled/slotted rotors...

image · Feb 13, 2015

So the coupes brembos fit the sedan? You need the coupes brembos rotors For the front of the Sedan?

84FordMan · Feb 13, 2015

image said:
So the coupes brembos fit the sedan? You need the coupes brembos rotors For the front of the Sedan?

Yes you need calipers, rotors and pads from the donor car. More than likely only one of the two screws that secure the rotor to the hub, when the wheels are off, will be able to be used per rotor, as was the case with my Coupe.

xiaphin · Feb 13, 2015

Can you do me a favor and measure from the face of the caliper to the face of the mounting location? Essentially how wide is the caliper. Pic attached since my question doesn't have the best wording. Interested in what backspacing is required to clear these brakes.

There is a great thread about this conversion on the coupe with some information about what sedan parts are interchangeable.
http://www.Genesis Coupe.com/wheels-tires-brakes-2013-up/99761-upgrading-stock-brakes-brembos.html

Tailwalker · Feb 13, 2015

I can't wait to see this also!

84FordMan · Feb 13, 2015

xiaphin said:
Can you do me a favor and measure from the face of the caliper to the face of the mounting location? Essentially how wide is the caliper. Pic attached since my question doesn't have the best wording. Interested in what backspacing is required to clear these brakes.

There is a great thread about this conversion on the coupe with some information about what sedan parts are interchangeable.
http://www.Genesis Coupe.com/wheels-tires-brakes-2013-up/99761-upgrading-stock-brakes-brembos.html

4.24" is the closest measurement I get

84FordMan · Feb 13, 2015

One of the rear calipers arrived today, the bolt holes line up:

acr · Feb 15, 2015

Awesome, subscribed. If everything could be a clean swap over, might have to pursue this myself as well.

xiaphin · Feb 16, 2015

84FordMan said:
One of the rear calipers arrived today, the bolt holes line up:

Can you measure the same thing in the rear please? Thanks for measuring the front.

2011 Genesis 4.6 · Feb 16, 2015

This looks very interesting will be keeping an eye on this.

chewbakarox · Feb 16, 2015

Cool project - great to know the fronts will clear OEM wheels. Please let us know if it's the same case in the rear!

84FordMan · Feb 16, 2015

xiaphin said:
Can you measure the same thing in the rear please? Thanks for measuring the front.

3.7"

xiaphin · Feb 16, 2015

Thanks again, helps me confirm back spacing for the new wheels if I decide to go this route. In for the actual conversion.

chewbakarox · Feb 17, 2015

84FordMan said:
4.24" is the closest measurement I get

So the Brembo front calipers are 4.24" wide, and the rears are 3.7".....does anyone happen to know the width of the OEM front 4-pots and rear brakes? I'm curious how much extra clearance is required for the Brembos.

84FordMan · Feb 17, 2015

chewbakarox said:
So the Brembo front calipers are 4.24" wide, and the rears are 3.7".....does anyone happen to know the width of the OEM front 4-pots and rear brakes? I'm curious how much extra clearance is required for the Brembos.

I can check the rear measurement, as I still have an OE Sedan rear caliper at the shop.

For the fronts, I don't think that will be an issue and let me tell you why.

When I put the Sedan front calipers on my Coupe, I needed a spacer on my Coupe 18" wheels, as the spokes hit the caliper, not much of a spacer, about 5mm. Now the Coupe Brembos clear the Coupe 18" wheels without a spacer, so therefore the Sedan calipers are a good bit fatter. So whatever wheels you have now, if they clear your factory Sedan 4-pot, you will gain some more clearance with Brembos.

chewbakarox · Feb 17, 2015

84FordMan said:
I can check the rear measurement, as I still have an OE Sedan rear caliper at the shop.

For the fronts, I don't think that will be an issue and let me tell you why.

When I put the Sedan front calipers on my Coupe, I needed a spacer on my Coupe 18" wheels, as the spokes hit the caliper, not much of a spacer, about 5mm. Now the Coupe Brembos clear the Coupe 18" wheels without a spacer, so therefore the Sedan calipers are a good bit fatter. So whatever wheels you have now, if they clear your factory Sedan 4-pot, you will gain some more clearance with Brembos.

Thanks for the great info on the fronts....please let us know what you find on the rears!

66nexus · Feb 17, 2015

84FordMan said:
I can check the rear measurement, as I still have an OE Sedan rear caliper at the shop.

For the fronts, I don't think that will be an issue and let me tell you why.

When I put the Sedan front calipers on my Coupe, I needed a spacer on my Coupe 18" wheels, as the spokes hit the caliper, not much of a spacer, about 5mm. Now the Coupe Brembos clear the Coupe 18" wheels without a spacer, so therefore the Sedan calipers are a good bit fatter. So whatever wheels you have now, if they clear your factory Sedan 4-pot, you will gain some more clearance with Brembos.

I'm liking your pioneering. Question: do you think the sedan calipers being fatter might mean they bite stronger? I'm curious because I wanted to do this mod but the 4.6 weighs a good deal more and I was wondering if the Brembos would hold up. In the coupe forums you seemed to favor the sedan calipers a bit over the Brembos.

xiaphin · Feb 17, 2015

chewbakarox said:
So the Brembo front calipers are 4.24" wide, and the rears are 3.7".....does anyone happen to know the width of the OEM front 4-pots and rear brakes? I'm curious how much extra clearance is required for the Brembos.

Pictures of caliper depth for front and rear OEM brakes. Measurements taken with calipers on the car.

OEM Front=3.365" Brembo Front=4.24" Difference of .875"
OEM Rear=2.65" Brembo Rear=3.7" Difference of 1.05"

84FordMan said:
I can check the rear measurement, as I still have an OE Sedan rear caliper at the shop.

For the fronts, I don't think that will be an issue and let me tell you why.

When I put the Sedan front calipers on my Coupe, I needed a spacer on my Coupe 18" wheels, as the spokes hit the caliper, not much of a spacer, about 5mm. Now the Coupe Brembos clear the Coupe 18" wheels without a spacer, so therefore the Sedan calipers are a good bit fatter. So whatever wheels you have now, if they clear your factory Sedan 4-pot, you will gain some more clearance with Brembos.

Not sure I understand why you needed a spacer based on the measurements both of us have supplied. Did we measure the same distance?

66nexus · Feb 17, 2015

^Not sure about you guys, but I have Gen coupe wheels (stagger fr 8in rear 8.5in) and I couldn't use the fronts without using a spacer. The spoke kept smacking the the caliper. The 8.5in all around clears no problem though.

Coupe Brembo Retrofit

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