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      08-03-2017, 01:16 AM   #1
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Worth changing rotors to drilled/slotted ones for aesthetics?

Going with 468 style rims and rotors will be very visible. Don't really like the look of stock rotors. So I thought maybe drilled/slotted ones will give much improved looks. I know it's for aesthetics only as they don't really increase any stopping power haha

What do you guys and gals think?
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      08-03-2017, 09:12 AM   #2
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Totally up to you. What else did you do to the car. Will it match the style?

Personally, I've never looked at an X5 and said "man, that car is so badass but those undrilled rotors totally let it down".
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      08-03-2017, 09:39 AM   #3
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Quote:
Originally Posted by double_j View Post
Totally up to you. What else did you do to the car. Will it match the style?

Personally, I've never looked at an X5 and said "man, that car is so badass but those undrilled rotors totally let it down".
Haha, I agree. It's just coming from 3 series wheel aesthetics were a huge thing. Given that 468 rim style design leaves rotor fully open and 20 inch rims just accentuate that - I just cringe everytime when I see stock rotors

I totally understand you, but it's just there's just so much we can do with our x5. I mean it's not a sedan - we can't do a lot of stuff on a SAV, lowering options are limited (and it doesn't look that good on SAV to be honest compared to sedans). SO that's why I'm trying to at least do whatever I can do to make it look nice
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      08-03-2017, 10:45 AM   #4
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Quote:
Originally Posted by DuSh View Post
Going with 468 style rims and rotors will be very visible. Don't really like the look of stock rotors. So I thought maybe drilled/slotted ones will give much improved looks. I know it's for aesthetics only as they don't really increase any stopping power haha

What do you guys and gals think?
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      08-03-2017, 12:18 PM   #5
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DuSh I would do MPBK with X5M Rotors.
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      08-03-2017, 01:33 PM   #6
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DuSh I would do MPBK with X5M Rotors.
ouch I'm afraid to ask, but what is the bill for those?
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      08-03-2017, 01:36 PM   #7
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Quote:
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ouch I'm afraid to ask, but what is the bill for those?
Still cheaper than a set of Brembo.
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      08-03-2017, 02:58 PM   #8
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Not worth the money in my opinion.
Slotted drilled rotors stand out more and may take away from the look of the wheels.
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      08-03-2017, 06:30 PM   #9
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I also heard they're not as effective as non drilled rotors. More holes = less surface area and uneven braking. They're only recommended for high performance brakes because they cool a lot faster than non drilled rotors under heavy use.
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      08-04-2017, 07:54 AM   #10
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Quote:
Originally Posted by Kr0m3assass1n View Post
I also heard they're not as effective as non drilled rotors. More holes = less surface area and uneven braking. They're only recommended for high performance brakes because they cool a lot faster than non drilled rotors under heavy use.
I was just going to say just what you posted about losing a little braking performance. But feared the rash of impending posts from all the "hole" experts telling me just the opposite is true
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      08-04-2017, 08:00 AM   #11
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Quote:
Originally Posted by Kr0m3assass1n View Post
I also heard they're not as effective as non drilled rotors. More holes = less surface area and uneven braking. They're only recommended for high performance brakes because they cool a lot faster than non drilled rotors under heavy use.
I was just going to say just what you posted about losing a little braking performance. But feared the rash of impending posts from all the "hole" experts telling me just the opposite is true
Lol. It's as simple as Physics. Don't let them tell you otherwise.

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      08-04-2017, 10:30 AM   #12
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Thanks guys! I agree with the fact that drilled rotors lose a bit performance due to holes - that's simple physics and less area for friction. No doubt about that. But I read some tests in motor trend if I remember correctly and difference is not that much - single digit numbers and it was only noticeable on the track. Thus I'm thinking for everyday driving it won't matter as much in terms of performance, but it's the looks I like and I'm trying to decide if spending $$ is worth it haha

I can just change rotors and keep stock calipers - most economical option I guess. Cheapest drilled/slotted rotors I found were about $120/$150 Front and Rear per rotor Centric/StopTech - not the best quality brand, but gets the job done. Still looking into other economical options
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      08-04-2017, 10:36 AM   #13
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Another simple physics is the bigger the brake pads contacting the surface of the rotors the better (shorter) the stopping distance. MPBK will out perform any standard X5 brakes.
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      08-04-2017, 11:08 AM   #14
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Quote:
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Another simple physics is the bigger the brake pads contacting the surface of the rotors the better (shorter) the stopping distance. MPBK will out perform any standard X5 brakes.
I have no doubt in that. However, I suspect price is a LOT more eh? I configured a set of 4 rotors all drilled/slotted from Centric/StopTech Sport to run around $550 shipped to my door. Now I'm not an expert in OEM BMW pricing, but I did a search and it looks like MPBK + pads will run around $4-5k

That's a 10 fold difference, but I am sure they will perform better - it's just I'm not tracking my car at all and I have family with other needs too
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      08-04-2017, 11:20 AM   #15
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Auto Anything carries the Power Stop Z23 Brake Kit. Front and rear with sensors is about $500. If you ask they usually will give you a 15% discount. A lot of good reviews.
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      08-04-2017, 12:37 PM   #16
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Quote:
Originally Posted by DuSh View Post
Thanks guys! I agree with the fact that drilled rotors lose a bit performance due to holes - that's simple physics and less area for friction. No doubt about that. But I read some tests in motor trend if I remember correctly and difference is not that much - single digit numbers and it was only noticeable on the track. Thus I'm thinking for everyday driving it won't matter as much in terms of performance, but it's the looks I like and I'm trying to decide if spending $$ is worth it haha

I can just change rotors and keep stock calipers - most economical option I guess. Cheapest drilled/slotted rotors I found were about $120/$150 Front and Rear per rotor Centric/StopTech - not the best quality brand, but gets the job done. Still looking into other economical options
Here is what is going to happen with cheap probably chinese made rotors. A few times coming off the highway at 65 and high temp braking on the exit ramps, cheap rotors will warp and develop hotspots. Then for the rest of the time they are on your car you will get vibration in the steering wheel when braking. Usually cheap rotors cant be turned to renew them. Hotspots become part of them anyway.
Then it eventually it passes on to cupping your tires and now you can enjoy vibration at certain speeds usually 65-70 mph.

But hey, if you prefer the looks of cheapo rotors with holes over OEM BMW rotors . . . then go for it :
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      08-04-2017, 12:50 PM   #17
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I'd also just keep your OEM brake system if you are not willing to spend $4K for MPBK because as said above, safety would be a concern. If you want to create a different look then painting the calipers is acceptable IMO. Most people do it gloss black, but I've seen people do blue, red, and yellow.
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      08-04-2017, 04:50 PM   #18
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Ok, ok guys you win - you sure know how to scare fellow forum member - I'm keeping stock rotors - safer and cheaper haha

However, I was under impression that Centric is a very well known brand in aftermarket parts in USA. It's US California based company producing lots of parts since 2000 - so it's been almost 17 years now. I'm sure you have heard their famous products like PosiQuiet® and StopTech® among others. They are ISO certified and a known name worldwide. They have lots of patents and their products are used in motorsports (NASCAR, SCCA, Grand-Am etc). Now I'm not saying they are Brembo like quality, but neither is OEM BMW brakes (including MPBK)
They have manufacturing process in USA as well as in other countries. Yes, I'm sure in China too, but then again lot's of OEM BMW wheels come from China, Italy and so on. Just wanted to dilute such big skepticism about China produced parts, tho I agree that a no name brand rotor from China is probably going to be a disaster
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      08-04-2017, 06:59 PM   #19
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To all,
I just had my dealer install a full MPBK on my 2017 X6 50i two days ago. I'm still in the break in period for another 100 miles. Price, installed 4k. I will write a review of before and after very soon. I'll be selling the stock parts also, cheap.
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      08-04-2017, 07:04 PM   #20
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Quote:
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To all,
I just had my dealer install a full MPBK on my 2017 X6 50i two days ago. I'm still in the break in period for another 100 miles. Price, installed 4k. I will write a review of before and after very soon. I'll be selling the stock parts also, cheap.
KP
That's a descent price I guess, as I imagine labor is at least 3-4 hours
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      08-05-2017, 07:28 AM   #21
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That's a descent price I guess, as I imagine labor is at least 3-4 hours
From the time frame that they had the car, I would say it took them 6 hours overall. Install, coding, and testing. They even boxed up all of the parts in the replacement boxes so I have everything in boxes with part numbers. Very happy with my dealer.
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      08-05-2017, 08:11 AM   #22
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Quote:
Originally Posted by cautjit View Post
To all,
I just had my dealer install a full MPBK on my 2017 X6 50i two days ago. I'm still in the break in period for another 100 miles. Price, installed 4k. I will write a review of before and after very soon. I'll be selling the stock parts also, cheap.
KP
Wow, they charge you too much on the labor.
But again, it is a dealership.
I think I remember few of the members got charged between 500-800 on the labor.
While the MPBK usually goes around $2400 these days.
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