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PostPosted: Tue Jun 27, 2017 5:28 pm 
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Year and Trim: 03 Aurora
Hi guys, I have searched and can not find a dedicated thread write up to upgrade to the brembo/cts-v brakes. I have an 03 Aurora and was going to upgrade to the 12.7" rotors and aluminum calipers like are on the gxp/sts/srx/cts 3.6 however I have seen yourgrandma's ride and I really like how those brakes look. Just need to know what is needed for the caliper fitment/installation. Thanks


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PostPosted: Wed Jun 28, 2017 10:54 am 
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The Bonneville GXP, STS, SRX and CTS do not use Brembo's. Most of these (for sure the Bonneville GXP), use PBR calipers.

Corvette's, CTS-V, STS-V, XLR-V, G8 GXP, SS, and several newer model Camaro's, use the two-piece Brembo 4 piston setup.

Unfortunately, I no longer have a pic of my Bonneville GXP's caliper (I switch from photobucket and didn't to imgur and didn't take every image), but here is a picture of my rear Brembo's on my V. The front looks the same, just bigger (both caliper and rotor)

Once we determine which setup you're asking about, more info can be given.

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PostPosted: Wed Jun 28, 2017 4:30 pm 
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Year and Trim: 03 Aurora
Thanks for the reply, my post kind of rambles on but up there it says that I *was* going to upgrade to the 12.7" *until* I happened to see yourgrandma's ride. I would at least like to do the CTS-V's up front, just needed to know if he used any special spacer or bracket to make em work. It looks like he used rotors for a 07-09 GT500 & calipers for the 04-07 CTS-V. I have the long SS goodrich brake lines being shipped to me now and I have the smaller caliper bolts & sleeve/bushing being shipped to me from McMasters.


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PostPosted: Thu Jun 29, 2017 12:44 pm 
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Yes, you will need GenI CTS-V/STS-V/XLR-V/G8 GXP/SS... Front calipers. They are a two-piece, 4 piston unit.

Newer versions on Corvette's, GenII+ CTS-V's are a single piece (hence you'll hear the name "monoblock"), 6-piston setup. I don't think I've seen anyone adapt them to any FWD H or W cars.

Yes, you will need a custom bracket to convert them.

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Retired Bonneville Owner and former GM Tech:
2004 Pontiac Bonneville GXP: Black/Ebony *SOLD*

Summer Toys: Combined 827 RWHP / 877lb/ft RWTQ
2004 Pontiac GTO: Impulse Blue Metallic/Black/M6: lots 'o mods, 415 RWHP / 405lb/ft RWTQ!
2006 Cadillac STS-V: Light Platinum Metallic/Light Gray/A6 - Spectre CAI, Magnaflow exhaust, Speed Inc. tune, 412 RWHP / 472lb/ft RWTQ

Daily Drivers:
2015 Chrysler Town & Country Limited Platinum: Mommy's NEW RGC
2007 Chrysler Town & Country Limited: Daddy's beater affectionately called the Rolling Garbage Can or "RGC" for short
2009 Chevrolet Impala SS: LS4 V8, Victory Red
1999 Chevrolet Suburban: Sunset Gold Metallic - Daddy's winter beater and plow truck


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PostPosted: Fri Jun 30, 2017 4:43 pm 
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performance-brainstorming/topic33495.html

Hope that helps? The calipers bolt up, as far as I can tell?

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