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Go Back   RacingBrake Forums > Category > Group Buy > BMW

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Old 12-10-2012, 03:16 PM   #1
racingbrake
 
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Default BMW E46 M3 CPZ & Z4M Rear Brake Upgrade

The following item is listed for GB purchase.

Rear two piece rotors (328x22mm)

This package includes 2 ea assembled light weight two-piece rotors along with 1 set of ET300 brake pads (OE pads can be used but will need to be modified, see more details below).

- 15% discount for 5 orders, your discounted total will be $785.08 a pair (savings of $138.54)
- 20% discount for 10 or more orders, your discounted total will be $738.90 a pair (savings of $184.72)

(Anyone who joined and placed an order in the GB thread for the front rotors will automatically be eligible for a 20% discount in this thread)

Here is our official sign up list:

1) Finnegan (ET500 pads)
2) cymek (ET500 pads)
3) RobMCoupe (less pads) Order #14440
4) kalare (less pads) Order #14401
5) The HACK (ET500 pads) Order #14707
6) bluewater87 (ET500 pads)
7) docnyt (ET500 pads) Order #14399
8) cholo0327 (ET500 pads) Order #14394
9) JasonH (less pads) Order #14437
10) adsingl (ET500 pads)

This GB closed on 2/20/13.
Those who signed up here and were part of front GB have until 10/15/13 to place order for rear 2-piece with 20% discount. Use coupon code BMW20 to apply your discount.

GB Offer Update:
One free axle set of wheel studs will be included with orders placed before 2/20/13


Rotor Assembly total weight 12.5 lbs vs. OE 17 lbs even with 2mm thicker than OE


RB 2-PC Rotor bolts on without any modifications



OE caliper w/RB pads on RB 2-PC Rotor
Note: Bottom of OE pads need to be trimmed down 5mm.
We have pads available that are modified to fit this this setup.

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Old 12-12-2012, 12:28 AM   #2
Finnegan
 
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Interested! (I was in the front rotor GB.)

Was Racing Brake also going to offer a rear caliper upgrade option as well? (I can't recall from the front GB thread, and I'm too tired to dig through the entire thing--assuming I'd even catch it if it was there.)
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Old 12-12-2012, 10:25 AM   #3
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Default

Quote:
Originally Posted by Finnegan View Post
Interested! (I was in the front rotor GB.)
Finnegan is added to the list.

Quote:
Originally Posted by Finnegan View Post
Was Racing Brake also going to offer a rear caliper upgrade option as well? (I can't recall from the front GB thread, and I'm too tired to dig through the entire thing--assuming I'd even catch it if it was there.)
Now that we have released the light weight 2-pc rotor the rear caliper upgrade will follow. Updates will be posted in this thread.
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Old 12-12-2012, 07:50 PM   #4
cymek
 
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Also I was in the front rotor GB. Please add me to the rear rotor GB. Is there an ET-500 pad option?
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Old 12-12-2012, 07:55 PM   #5
Finnegan
 
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If anyone is interested in the option of a larger sized rear rotor, please indicate that.

I think RB may consider offering a rear upgrade ring in the 348x26 size (in addition to the 328x22mm size) if there's enough interest.

This would be similar to the PU caliper upgrade + BBK offered on the front rotor GB I believe.
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Old 12-13-2012, 06:28 AM   #6
RobMCoupe
 
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I've been waiting for the rear since the GB for the front. Please add me to the list.
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Old 12-13-2012, 06:31 AM   #7
RobMCoupe
 
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Minus pad if there is an option. I will decide on the pads when I make my caliper purchase.

Thanks.
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Old 12-13-2012, 09:46 AM   #8
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Quote:
Originally Posted by cymek View Post
Also I was in the front rotor GB. Please add me to the rear rotor GB. Is there an ET-500 pad option?
cymek you have been added to the list. ET500 pad option is available.
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Old 12-13-2012, 09:48 AM   #9
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Quote:
Originally Posted by RobMCoupe View Post
Minus pad if there is an option. I will decide on the pads when I make my caliper purchase.

Thanks.
RobMCoupe is added to the list minus pads.
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Old 12-14-2012, 10:35 PM   #10
cymek
 
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What is the cost of the et-500 pad option?
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Old 12-14-2012, 10:38 PM   #11
Finnegan
 
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Also interested in an ET500 option.
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Old 12-15-2012, 05:27 PM   #12
kalare
 
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RB, with the additional 2mm thickness...is the rotor still centered where the OEM rotor is centered? In other words, is the 2mm added split between 1mm on each side or is it 2mm added to only one side?
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Old 12-17-2012, 10:21 AM   #13
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Default ET500 Option

Upgrade to ET500 brake pads for $20 more, new total w/rotors would be $758.
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Old 12-17-2012, 10:26 AM   #14
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Quote:
Originally Posted by kalare View Post
RB, with the additional 2mm thickness...is the rotor still centered where the OEM rotor is centered? In other words, is the 2mm added split between 1mm on each side or is it 2mm added to only one side?
1mm to each side was added keeping rotor centered between OE caliper.

This can only be possible with our patented "center mount" design - Rotor thickness varies symmetrically so the offset remains unchanged, unlike traditional surface mount it would have added 2mm offset towards outboard.
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Old 12-18-2012, 06:22 AM   #15
RobMCoupe
 
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I notice you charge an additional $180 for blue color calipers. Can you explain why the extra premium for blue compare to black/red?
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Old 12-18-2012, 06:56 AM   #16
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Quote:
Originally Posted by RobMCoupe View Post
I notice you charge an additional $180 for blue color calipers. Can you explain why the extra premium for blue compare to black/red?
Blue is not a common color as "Red" or "Black", so our powder coating subcontractor charges more for them and it's less demanded so smaller run means higher cost per unit.
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Old 12-18-2012, 07:02 AM   #17
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Quote:
Originally Posted by kalare View Post
RB, with the additional 2mm thickness...is the rotor still centered where the OEM rotor is centered? In other words, is the 2mm added split between 1mm on each side or is it 2mm added to only one side?
More explanation was added to the previous reply.

1mm to each side was added keeping rotor centered between OE caliper.

This can only be possible with our patented "center mount" design - Rotor thickness varies symmetrically so the offset remains unchanged, unlike traditional surface mount it would have added 2mm offset towards outboard.
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Old 12-20-2012, 09:13 PM   #18
kalare
 
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Put me down for a set minus pads...when are these going to be up for sale? The people on the previous GB have a year to buy these at 20% off no?
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Old 12-21-2012, 02:49 PM   #19
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Quote:
Originally Posted by kalare View Post
Put me down for a set minus pads...when are these going to be up for sale? The people on the previous GB have a year to buy these at 20% off no?
Kalare is added to the list. Remember OE pads can be used but will need to be trimmed to avoid interference with rotor hat/hardware. We offer pads that are already modified.

Rotors will be ready to ship in late January/early February but orders can be placed before then. Anyone who was part of previous GB has 12 months from when order was shipped to purchase rear rotors with a 20% discount.
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Old 12-27-2012, 08:05 AM   #20
JasonH
 
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Do you have specifics (or a template) of how much needs to be trimmed on the pad? Is it just the pad material or backing plate as well? Thanks.
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