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      01-11-2013, 12:03 AM   #23
Superfly_M3
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Quote:
Originally Posted by Raucky2000 View Post
Some of the larger advantages of this kit are the MASSIVE weight savings over the stock setup.

You save ~10lbs over the stock calipers, maybe more to be honest. Plus the weight savings of the rotors are well, they are 21lbs lighter total, so that's over 40lbs of weight hanging at the extreme corners of your car GONE! Their mounting bracket is super strong and light. Unsprung weight and rotational weight are some of the two biggest enemies a car has. It helps the car corner, stop, and go faster everywhere, no BS, it's the truth. "Ask any real racer..."

All of the major BBK kits weight about the same as OEM brakes (a little less than std to be fair), which was a big turnoff to me. I DIDN'T BUY THIS KIT BECAUSE I'M CHEAP!!! I bought this kit because I come from a racing history and for my application this IS THE BEST KIT.

Built in dust boots so this kit will last on the streets and tracks.

NO RUST RINGS, to answer someone's question^

I talked to their service department for hours, trust me, they know their Sh*t.

Oh I'm prob letting the cat out of the bag, but someone already asked about. "Why only a 4 pot setup?" Lets just say RB has a surprise for us next season with something bigger and badder (?) for the front end and we can still use the 4 pot calipers on the rear! Sorry RB, but people needed to know that so please DON'T hate me!!!!! Plus now the pressure is on to finish your R&D earlier!
So this kit is 40lbs lighter than stock?
You think 360mm will be enough for you?
Now that the cat is out of the bag, how can you use the 4 pot on the back?
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      01-11-2013, 06:49 AM   #24
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Yes my setup is 40lbs +/- lighter than stock...as long as my math is correct it's actually more than, but I'm just playing it safe.

Yeah the 360 size will be enough for me and I upgraded to their "lightest duty" track pad on the front, with their highest performance street pad in back.

They DO make an over sized kit for you none believers (if you want something bigger than stock size).

They are doing their R&D on a 6-pot caliper setup for the front. They are also redesigning a new caliper bracket to move the 4-pot that I have to the rear rotors.

So this way you can have your cake and eat it too!

Last edited by Raucky2000; 01-11-2013 at 06:51 AM. Reason: addition
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      01-11-2013, 09:43 AM   #25
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RB really loves their 4pot caliper and with their testing have proven it can provide the same or better performance than many of the 6pot calipers out there. When we discussed the design of the kits, I pushed that most people want a 6pot kit. The owner assured me that his 4pot kit would be more than worthy but that we could definitely shoot for a 6pot in the future.
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      01-11-2013, 11:47 AM   #26
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Quote:
Originally Posted by Raucky2000 View Post
They are also redesigning a new caliper bracket to move the 4-pot that I have to the rear rotors.
This is a bad idea. The pistons are way too big. It would require a lot of customization. A different 4 piston caliper, yes. The one you have probably not worth the trouble. You would need some combination of the following: huge pistons up front, different master cylinder, different pad compounds back and front.
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      01-11-2013, 11:57 AM   #27
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Quote:
Originally Posted by r53s65e90 View Post
This is a bad idea. The pistons are way too big. It would require a lot of customization. A different 4 piston caliper, yes. The one you have probably not worth the trouble. You would need some combination of the following: huge pistons up front, different master cylinder, different pad compounds back and front.
Since they mfg the caliper themselves, they can use the same physical caliper but mfg it with different piston sizes.
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      01-11-2013, 12:58 PM   #28
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Waiting for the review.
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      01-11-2013, 01:04 PM   #29
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Since they mfg the caliper themselves, they can use the same physical caliper but mfg it with different piston sizes.
Yes, but that means you can not move the front caliper to the back as the other poster mentioned earlier up. You need a rear-specific caliper as the existing one is a front-specific caliper.

I really hope they are using a M3-specific caliper application as opposed to using a universal sized piston caliper with adapters to fit the M3. The brake proportioning will be way off.
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      01-11-2013, 01:04 PM   #30
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6 to 8 weeks ship out time. I guess there made specially per each order
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      01-11-2013, 01:07 PM   #31
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Quote:
Originally Posted by Chriskm3 View Post
6 to 8 weeks ship out time. I guess there made specially per each order
Right now, yes. The M3 is a small market so orders will be produced on an as needed basis for the time being in addition to the fact that they are a small company.
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      01-11-2013, 01:36 PM   #32
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Quote:
Originally Posted by Z K View Post
I really hope they are using a M3-specific caliper application as opposed to using a universal sized piston caliper with adapters to fit the M3. The brake proportioning will be way off.
The piston sizes for this thread's caliper are spot on!

IMO, on paper, this kit is great because it is very versatile. I hope early adopters will not have too many issues, and this should become one of the mainstay kits for the E9X M3.
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      01-11-2013, 03:17 PM   #33
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Alright guys, the install went completely smooth, no stumbles at all. There is tons of room behind the stock rims. I'll enough space to go down to 18" rims too, which is what I'll race on. I have a retail shop so that's why it has taken me soooo long to get these on. I just got done bedding the rotors, so I'm still waiting a chance to really get on them. I'll report back tonight

Here are some pictures to keep you happy for now
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      01-11-2013, 03:32 PM   #34
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Looks great!
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      01-11-2013, 03:57 PM   #35
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Someone stole your muffler
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      01-11-2013, 04:44 PM   #36
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I must have lost it somewhere

It's LOUD, but man it sounds great at wot
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      01-11-2013, 04:57 PM   #37
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im gonna get the front setup once I wear down the stockers.
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      01-11-2013, 05:14 PM   #38
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Quote:
Originally Posted by Raucky2000 View Post
Alright guys, the install went completely smooth, no stumbles at all. There is tons of room behind the stock rims. I'll enough space to go down to 18" rims too, which is what I'll race on. I have a retail shop so that's why it has taken me soooo long to get these on. I just got done bedding the rotors, so I'm still waiting a chance to really get on them. I'll report back tonight

Here are some pictures to keep you happy for now
They look great!
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      01-11-2013, 07:25 PM   #39
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Isn't this kit about the same price as the Stoptech front kit at 380mm?
I don't care how many pistons a kit has, as long as it's designed properly.
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Let me get this straight... You are swapping out parts designed by some of the top engineers in the world because some guys sponsored by a company told you it's "better??" But when you ask the same guy about tracking, "oh no, I have a kid now" or "I just detailed my car." or "i just got new tires."
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      01-11-2013, 07:48 PM   #40
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Alright so the verdict is in after a bunch of starting and stopping. If the stock brakes made you feel like this Then the RB kit and rotors will make you feel like this All I can say is I don't care how many pistons you have, because this setup rocks and rocks it hard. Great pedal feed back, modulation is good and firm, but not super rock hard and dead feeling like some of the race cars I've driven. This kit really is a great setup for the track days (Plus they have fast change out pads!) and daily driving, you won't be disappointed.

^Sure they might be around the StopTech pricing (I honestly can't remember if they are more or less), but I bet that these stop every bit as good, if not better and save a ton of weight off the car, which is a huge benefit!

For me, this was a great addition to a great car and everyone that's seen them in person, was really impressed.

THEY ARE WORTH THE WAIT!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!
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      01-11-2013, 09:31 PM   #41
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I know this thread is about brakes but you can't put up a pic of an akra x pipe w/downturns and no muffler, and expect no one to ask for sound clips.
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      01-11-2013, 09:52 PM   #42
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Well...I'll get something up tomorrow for you, but it's not what you think it is
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      01-11-2013, 10:39 PM   #43
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Raucky2000 those are very nice looking and unique. Good to see something not mainstream. Question for an not about the brakes..what jacks are you using? I really like those!
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      01-11-2013, 10:57 PM   #44
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looks good.
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