: STS to STS-V Brake Conversion - Brembos



Curious George
10-03-07, 05:02 PM
The 2008 normal STS has optional Brembo brakes (option code PCZ) included in the Performance Handling Package. Where can I find out more about these brakes: specifications, appearance, and can they be retro-fitted to my 2006? Does anyone out there have and '08 with these brakes? How well do they work?

harryctsv
10-06-07, 03:31 PM
The 2008 normal STS has optional Brembo brakes (option code PCZ) included in the Performance Handling Package. Where can I find out more about these brakes: specifications, appearance, and can they be retro-fitted to my 2006? Does anyone out there have and '08 with these brakes? How well do they work?
Hi George, I own here in Germany an 07 export-model and on the V8, as I own the Brembo`s are standard.(not on V6 models).

My other car is an 04 XLR and I`ve owned allways american cars but the best brakes I ever had it`s the brakes of my STS. I use to do a lot of high speed driving on the autobahn and the are GREAT!!!!

Here`s apicture!

Harry

http://i80.photobucket.com/albums/j184/harrysxlr/PICT0023.jpg

Curious George
10-06-07, 03:37 PM
Thank you. They do look good. I'm not surprised that they work well.

With what wheel size is your car fitted? 17-inch or 18-inch?

PS: Your English is MUCH better than my German.

harryctsv
10-07-07, 03:11 PM
Thank you. They do look good. I'm not surprised that they work well.

With what wheel size is your car fitted? 17-inch or 18-inch?

PS: Your English is MUCH better than my German.
No problem George, and thank you that you are able to read my english.

I have 18 inch with 255`s on all four corners. If you take a close look you can see that our export V8 models got the wheels of the CTS V but we have 255`s on instead of the CTS V 245`s.

Harry

soupero
10-08-07, 04:48 PM
I love the V8

1MadMan
03-31-08, 08:12 PM
Does anyone know if the STS-V or 2008 Brembos are a bolt-on for a 05-07 STS? Maybe just need calipers, brackets, and rotors?

05STSWOW
04-03-08, 05:52 PM
You will also need 18" x 8.5" 6 lug wheels to clear the rotors. The Performance Handleing Package option is only like $1595 and includes summer-only performance Michelins and a strut tower brace. The ride height seems a little lower also.
You could never retrofit for anything close to this price, unless you find a wrecked STS-V somewhere.
Those silver painted calipers sure look nice, though. It was worth ordering and waiting.

STScadillac99
04-03-08, 07:33 PM
You will also need 18" x 8.5" 6 lug wheels to clear the rotors. The Performance Handleing Package option is only like $1595 and includes summer-only performance Michelins and a strut tower brace. The ride height seems a little lower also.
You could never retrofit for anything close to this price, unless you find a wrecked STS-V somewhere.
Those silver painted calipers sure look nice, though. It was worth ordering and waiting.
.are the 2008's six lug wheels??

05STSWOW
04-07-08, 06:24 PM
Just the wheels paired with the Performance Handling Package, STS-V, or Euro-spec versions are 6 lug. The rest are 5 lug.

Threnon
04-22-08, 12:26 AM
I have a 2006 STS4 with the 6 cyl.
I love the car and it is in need of brakes.
Can I upgrade to the STS-v's, Brembo Brakes, rotors & pads, 18" wheels (4), possible strut tower brace without much trouble? Anything I am missing?
I also heard something on the lines of the steering gear being changed...
Anyone have any advise besides buying the V8 ?

Thanx

Dr. Design
04-22-08, 10:11 PM
Hello,
Well we might be able to help you. It would be a rather costly upgrade to get all the V-Series brakes on your application. It is certainly possible, but it will be a little pricey. Depending on what your budget is for this venture, there are a couple of ways you can go about doing this.

You might be able to run a combination of factory STS-V brake calipers and a series of aftermarket parts (i.e. rotor, brake lines, etc..) to come up with a good braking system. However you will most likely need new wheels to clear the larger calipers.

Next, if you are looking for upgraded brake components. You can go with a new high performance brake pad, change out the brake lines, and add new drilled/slotted rotors. This would offer a pretty good performance upgrade.


The last option would be to upgrade the complete system to all aftermarket components. We offer an 8-piston front and a 4-piston rear. We even replace the factory STSV brakes with this same system.

Here are a few images of STS's that we have done this big brake system upgrade to.
http://i143.photobucket.com/albums/r134/ctd3rnd/IMG_0709.jpg
http://i143.photobucket.com/albums/r134/ctd3rnd/IMG_1734.jpg
http://i143.photobucket.com/albums/r134/ctd3rnd/Picture084.jpg

I hope this helps. Please let us know if you have any questions.
Thank you,

Dr. Design
D3 Cadillac


I have a 2006 STS4 with the 6 cyl.
I love the car and it is in need of brakes.
Can I upgrade to the STS-v's, Brembo Brakes, rotors & pads, 18" wheels (4), possible strut tower brace without much trouble? Anything I am missing?
I also heard something on the lines of the steering gear being changed...
Anyone have any advise besides buying the V8 ?

Thanx

Benjamin Simon
04-22-08, 10:52 PM
Dr. Design,
I have the 1SG and I am also considering a brake upgrade. Do you have any numbers on the marginal performance gain with your aftermarket system?

Dr. Design
04-22-08, 11:06 PM
Hello,
Typically we say its about a 15% gain over stock braking by changing out the pads, rotors, and brake lines. For the full replacement system we are looking at about 35%-40% gain in braking performance.

Please let us know if you have any questions.
Thank you,

Dr. Design
D3 Cadillac


Dr. Design,
I have the 1SG and I am also considering a brake upgrade. Do you have any numbers on the marginal performance gain with your aftermarket system?

Lifer
04-23-08, 10:01 AM
Just a quick observation - I have a STS V8 1SG with the factory's performance brakes (JE5 - BRAKE SYSTEM PWR, ANTILOCK, FRT & RR WHL, Performance Brakes) and other than the mounds of brake dust on my wheels, these binders really bind. I really feel confident with them. I had a panic stop one evening on the LBJ when a Mexican pickup truck stopped for no reason in a down ramp and I was approaching at about 90 mph. I hit the brakes - no skid, no lock up, and I slowed down FAST. It really did the trick.

So if you need an upgrade, look no further than the JE5. :thumbsup:

1MadMan
04-23-08, 11:40 AM
Does anyone know the size of the STS-V rotor? Is the V caliper a bolt on with a new brake bracket?

2007STS
08-13-08, 11:16 AM
I've been looking into some Big Brake Kits more so for appearance and increase in stoping power over my stock. Ive looked the STS-V Calipers on GMPartsdirect.com. The cost for STS-V Calipers are $230 and $235 respectully. With STS-V pads and Rotors total investment is ~$1400 for front and rear combined.

What are your thoughts and has anyone done this conversion. Please note that this is for modest street application. Im concerned a 6piston front kit might be too extreme.

Cliff8928
08-13-08, 01:47 PM
It could be done easily enough. It's just calipers/rotors/pads/hubs Do you want to do the 6-lug conversion though?

The CTS-V stuff is identical.

Shameless plug - I have a set of nearly new 20" 6-lug Vogue CV7 with tires for sale.

2007STS
08-13-08, 03:21 PM
Ohh I want aware the STS-V was a 6-lug hub

Cliff8928
08-14-08, 03:27 AM
Ohh I want aware the STS-V was a 6-lug hub

Yeah, so is the SRX and CTS-V (The new CTS-V is 5 though??)

I haven't pursued it much, but you may be able to use a C6 Z06 rotor with your stock hubs with a slight (easy) modification. Or possibly get a set of 2-piece rotors with the 5x115 hat.

blunted
08-14-08, 09:53 AM
Have you considered going to drilled/slotted rotors with some good pads, like Hawk HPS? This past week I just did this upgrade and it looks great and has more than enough stopping power for anything you would do on a street (many people have also run on a track with this setup)... it also cost only $340 in parts. I can take some pic's if you'd like.

jjsocrazy
08-14-08, 07:34 PM
Have you considered going to drilled/slotted rotors with some good pads, like Hawk HPS? This past week I just did this upgrade and it looks great and has more than enough stopping power for anything you would do on a street (many people have also run on a track with this setup)... it also cost only $340 in parts. I can take some pic's if you'd like.

Can you tell me what exactly you bought so I can do this, my brakes always sqweek and I need more stopping power!

Thanks!

Joe

blunted
08-14-08, 10:59 PM
I ordered the drill/slotted from rotorpros.com and had them include the Hawk HPS pads. It was hard to beat the price and the quality was pretty good. This is what they look like.. I orded mine painted silver instead of the black. http://i33.tinypic.com/2n0lk5f.jpg

05STSWOW
08-15-08, 02:39 AM
Next time you buy a new one, order it with the Performance Handling Package. You get Brembo brakes as on STS-V, 18" x 8.5" 7 spoke chrome 6 lug wheels (to clear the rotors), summer-only 255/45ZR18 Michelin Pilot Sport tires (no spare, but a pump), and a strut tower brace. It's just a $1,600 option. I tested the stopping power at the YearOne Experience in May and it stopped 60-to-0 in 113 feet.
Now, does anyone know where I can buy replacement pads and rotors (especially drilled rotors) any place but the dealer? I guess I should ask on the STS-V forum.

Cliff8928
08-15-08, 03:11 AM
Those pads aren't anything special. I believe they're the same as a STI, Evo, 350Z, G35, (insert car with brembo caliper here...). They're stocked at Autozone.

Oh, and those wheels are definitely to clear the calipers. They're mighty thick on the outside compared to average.

Dr. Design
08-18-08, 05:14 PM
Thats going to be a lot of work and time to get that conversion to work. We have developed and offer a big brake system build specifically for the STS application.
http://i143.photobucket.com/albums/r134/ctd3rnd/IMG_0709.jpg
http://i143.photobucket.com/albums/r134/ctd3rnd/IMG_1734.jpg

Braking performance is BETTER than the STS-V combination!!!

Let us know if there are any questions.

Thank you,

Dr. Design
D3 Cadillac


I've been looking into some Big Brake Kits more so for appearance and increase in stoping power over my stock. Ive looked the STS-V Calipers on GMPartsdirect.com. The cost for STS-V Calipers are $230 and $235 respectully. With STS-V pads and Rotors total investment is ~$1400 for front and rear combined.

What are your thoughts and has anyone done this conversion. Please note that this is for modest street application. Im concerned a 6piston front kit might be too extreme.

AllGoNShow
08-31-08, 05:32 PM
By the looks of the big brake system you say you developed, looks an awefully lot like Rotora badging on the calipers. Did you develop it along side rotora?

Dr. Design
09-02-08, 01:19 PM
Hello,
Yes that is correct. We have been helping them develop the full line up of Cadillac applications. From providing them vehicles for fitment to CAD files of the vehicle. Our engineers work together to develop these systems. We even do track testing of the systems throughout the development process.

Please let us know if you have any questions

Thank you,

Dr. Design
D3 Cadillac


By the looks of the big brake system you say you developed, looks an awefully lot like Rotora badging on the calipers. Did you develop it along side rotora?

CadillacSTS42005
05-19-10, 07:25 PM
Per a pm convo between me and Platinum....


Actually the brembo caliper is a one peice assembly with the bracket, it is not a floating caliper like we currently have.

I have been really looking to do this, I know even if it came down to going to a 6 lug it could be done since the SRX hub is the same spacing as the V and the SRX had AWD so it could be swapped (until recently you couldnt get the AWD and pef handel package)

Honestly as long as we find a source for a 14" rotor with the Cadillac offset, it should just be a matter of sourcing the Calipers.

1st gen CTS-V and STS-V calipers are the same.

One thing you will need I believe is the brake lines.

Lets make a thread on this to cover the bases and for other members to see, not to mention to keep a better log.



Hey STS42005,
I was thinking about the Brembos that come in the Performance package for the STS
Why couldn't we just buy the calipers and mounting brackets form Cadillac, then order drilled rotors form Brembo with 5-115 lug pattern....
What do you think?

Platinum06
05-19-10, 08:03 PM
According to those pics...its drop on. wow. The only thing holding this up would be getting the right rotors in 5 lug. Or redrilling the extra 4 more holes needed in the GM rotor. I have a CNC machine and CAD software.:yup:

CadillacSTS42005
05-19-10, 08:05 PM
Exactly
It doesnt look too hard but pricing the rotors will be the trick.
That and sourcing the full set of calipers at a decent price.

Platinum06
05-19-10, 08:07 PM
GMPartsDirect.com? They seem to have good prices. I'm sure the calipers with the V logo are more expensive than the ones without.

CadillacSTS42005
05-19-10, 08:20 PM
yup they are but still not cheap
think just shy of a grand for the four from GM parts, less we can get a group buy and go through lindsay caddy.

Platinum06
05-19-10, 08:20 PM
:cool2:

Platinum06
05-19-10, 08:45 PM
Was hunting around and saw a post on the 1st Gen CTS-V converting over to 5 lug for aftermarket wheel fitment. says the 2010 Camaro rotor is the same but in a 5 lug....will have to verify.

CadillacSTS42005
05-19-10, 08:56 PM
Yea the Camaro and 2G CTS-V are 5 lug Brembo cars, however I believe the caliper in them is larger and might create clearance issues for even the stock 18"s. The new SS Camaro comes with 20"s not sure on the CTS-V.

Platinum06
05-20-10, 02:58 AM
CTS-V has 19" wheels front and rear....The rotors are 15" in the front and 14.7 rears...too big.
The 2010 Camaro rotors are the same dia. and thickness as the STS-V but in a 5 lug. I think we're on to something.

CadillacSTS42005
05-20-10, 12:44 PM
Highly doubt the 6th Gen Camaro uses the same bolt pattern as the STS, I know for a fact the 4th Gen Camaro uses a different one.

CadillacSTS42005
05-20-10, 01:01 PM
6 Gen Camaro

Bolt Pattern: 5x120
Offset Range: 35 to 45
Wheel Size Range: 20x8.0 to 22x9.5
OEM Tire Size (Front): 245/45-20 (245x729 mm)
OEM Tire Size (Rear): 275/40-20 (275x728 mm)


STS

Bolt Pattern: 5x115
Offset Range: 34 to 45
Wheel Size Range: 17x7.5 to 22x9.0
OEM Tire Size (Front): 235/50-18 (235x692 mm)
OEM Tire Size (Rear): 255/45-18 (255x687 mm)



But this is something I DID find...


2006 Chrysler SRT8 (with brembos stock) they use 5 lug

Bolt Pattern: 5x115
Offset Range: 12 to 22
Wheel Size Range: 18x8.0 to 24x10
OEM Tire Size (Front): 245/45-20 (245x729 mm)
OEM Tire Size (Rear): 255/45-20 (255x738 mm)

Platinum06
05-20-10, 09:25 PM
Dam...Another road block.
What is the bolt spec on the STS-V?
I'm still about drilling new holes in a 6 lug rotor or even opening up the SS ones so 5-115 fits through it

CadillacSTS42005
05-20-10, 09:44 PM
Why not just get Chry SRT8 rotors?

Heres the specs on the STS-V

Bolt Pattern: 6x115
Offset Range: 30 to 45
Wheel Size Range: 18x8.0 to 22x9.0
OEM Tire Size (Front): 255/45-18 (255x687 mm)
OEM Tire Size (Rear): 275/40-19 (275x703 mm)

CTS-V 1G is the same

Bolt Pattern: 6x115
Offset Range: 30 to 45
Wheel Size Range: 18x8.0 to 20x9.0
OEM Tire Size: 245/45-18 (245x677 mm)

Platinum06
05-21-10, 12:35 AM
Rotor thickness the same?

CadillacSTS42005
05-21-10, 08:17 AM
only 1 way to find out...

Platinum06
05-21-10, 05:27 PM
Steal one and measure them?

CadillacSTS42005
05-21-10, 05:55 PM
hahahah
or buy one from advance and return it lol

Platinum06
05-21-10, 10:07 PM
There is a mopar dealer down the street and they have a few Chalangers out front....maybe one night this weekend i will head over there with a digi caliper.

CadillacSTS42005
05-21-10, 10:45 PM
Go for it, I may for obvious reasons no longer be looking to upgrade my 05 but Ill help anyway I can!

CadillacSTS42005
05-21-10, 10:47 PM
Well I just herd...

SRT8

The front rotors are 14 1/8", the rear rotors are 13 3/4".

A very helpful install help aid http://www.ls1tech.com/forums/suspension-brakes/1130984-cts-v-brake-install-w-pics.html

CadillacSTS42005
05-23-10, 11:50 PM
Well the rotor issue is about solved...

http://www.lmperformance.com/7716/73.html

5x114.3 in a 14" rotor, the closest thing were gonna get to a 14" 5x115 rotor...

Platinum06
05-24-10, 10:38 AM
Thickness?

CadillacSTS42005
05-24-10, 06:35 PM
call baer?
why am i doing all the work?
lol

Platinum06
05-24-10, 07:23 PM
Lmao!

Redxped1
05-25-10, 02:30 PM
the cts-v 1 and stsv have the same rotors also id look into the pontiac g8gxp as it also has the same front brake set up in 5lug

CadillacSTS42005
05-25-10, 03:01 PM
G8 GXP uses 5x120
V already listed wont work...

Platinum06
05-25-10, 04:41 PM
F it. Just going to use the SS rotors and elongate the holes.

CadillacSTS42005
05-25-10, 06:09 PM
SS Camaro?

Platinum06
05-26-10, 12:36 AM
yes.

CadillacSTS42005
06-05-10, 10:28 AM
http://cgi.ebay.com/ebaymotors/Cadillac-STS-1SG-AWD-NAVI-08-STS-STS4-SPORT-30K-WARNTY-HEADS-UP-DVD-CHROME-25995-_W0QQcmdZViewItemQQhashZitem35a9e0d85aQQitemZ23048 3351642QQptZUSQ5fCarsQ5fTrucks
want!

Platinum06
06-05-10, 05:30 PM
I like, Those 14" rotors look huge inside the 18's.

Showing its a V8 and then saying its a V6 for $26K...not a bad price at all either way.
Interesting though...exactly 30,000mi....hmm.

B1n2fra
06-04-12, 08:30 PM
Is there any brembo caliper kits for a awd sts je7 brake setup. I've read if you use the stsv setup you have to change over to the six lug hub and I don't want to do that. Six lug cars are to difficult to find rims for,or just to damn expensive..

1BadCadSTS
06-04-12, 08:37 PM
Jl9 or je5 there is no je7...

Either way find someone to make a 14" 5x115 rotor and you can use the STS-v brembo.

scott9001
06-04-12, 09:11 PM
as long as the hat sits right im sure you can get custom rotors and such why not just buy a big brake kit?

B1n2fra
06-04-12, 09:15 PM
I meant je5. Isnt je5 a 14 inch rotor

1BadCadSTS
06-04-12, 09:24 PM
12.7/8 can't remember which. Jl9 is 11.x

btlegacy
03-06-13, 09:43 PM
I have recently acquired an 05 STS V6 RWD and have started working on it to bring it up to par. I have experience with various GM and import products and have worked on a few LS based swaps as well including my fun car (LS2/T56 Subaru Legacy). I have done custom brake setups before and have also worked on a few conversions for F-body's using the CTS-V/STS-V Brembos so I am aware of the work involved in such a task.

A few of the items on my to do list include a noisy hub, brakes, and a wheel upgrade so I though I would knock it all out in a nice project.

I took a look at the spindles and hubs on the STS and if logic seems right, I should be able to do the following.

Purchase 4x Corvette Hubs 4 x $54 = $216
Purchase Front and Rear Brembo Calipers $300 -$350
Purchase C6 Z06 Corvette 14in Front Rotors 2 x $58 = $116
Purchase 20in 5x120 Wheels in correct offset

Looking at around $630 - 700 plus rear rotors and all pads for the brake setup plus the cost of wheels and tires

The only factor that I have not been able to account for at this time is the rear rotors. Is there a 5x120 rear rotor available that is the 14.37in size and 5x120?

I will update as I progress but figured I would post to see what the opinions are and if anyone has completed a similar project


For Reference:

STS Hub:
104761

Corvette Hub:
104762

1BadCadSTS
03-07-13, 07:30 PM
Or just buy all sts-v components...,

The rears are just for show. I've done the upgrade on the front.

05 Shelby gt500 rotors work perfectly with bolt on sts-v calipers. Just need 42mm offset wheels to clear or a 20mm spacer.

btlegacy
03-08-13, 02:09 PM
Whats the part number on those rotors? Whats their hub size?