Apart from Stoptech, Brembo and AP Racing has anyone gone for other options ? Any good ? - Page 10 - BMW M5 Forum and M6 Forums
E39 M5 and E52 Z8 Discussion 1998-2003 Advertiser's Forum

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post #91 of 204 Old 11th October 2009, 02:42 PM Thread Starter
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Quote:
Originally Posted by RUFM5 View Post
Has anyone researched the company Ksport and their 356mm 6 piston caliper kit? Apparently it is a repackaged Wilwood setup?

KSPORT 13" PROCOMP BIG BRAKE KIT 97-03 BMW M5 E39:eBay Motors (item 280241300510 end time Oct-22-09 16:19:48 PDT)

Nice One ! I will check them out !!

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post #92 of 204 Old 11th October 2009, 06:22 PM
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I know of 2 guys with them on an M3 and found them to be ok - look good also. Never heard of anyone with them on an M5.
What's warranty etc like?
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post #93 of 204 Old 11th October 2009, 07:31 PM
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Quote:
Originally Posted by RUFM5 View Post
Has anyone researched the company Ksport and their 356mm 6 piston caliper kit? Apparently it is a repackaged Wilwood setup?

KSPORT 13" PROCOMP BIG BRAKE KIT 97-03 BMW M5 E39:eBay Motors (item 280241300510 end time Oct-22-09 16:19:48 PDT)

I took a look at the Wilwood site, and they don't have a caliper that looks like what's included in the 6 piston kit, and Wilwood does not make an 8 piston caliper

John Baas
2001 Anthracite Metallic M5
1997 Audi A4 - Too many mods to list
2003 Silverado SS

Interior
Euro Dash, Slimmbones Euro Armrest, Slimmbones Shifter/Ebrake Boots, F10 M5 Illuminated Shift Knob, UUC EVO3 Shifter, UUC DSSR, UUC Clutch Stop, Autolumination Interior LEDS, JBL MS-8, Alpine MRX-V70, Kicker Subwoofers, Polk/Boston Acoustic Speakers
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post #94 of 204 Old 11th October 2009, 08:26 PM
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Quote:
Originally Posted by RUFM5 View Post
Has anyone researched the company Ksport and their 356mm 6 piston caliper kit? Apparently it is a repackaged Wilwood setup?

KSPORT 13" PROCOMP BIG BRAKE KIT 97-03 BMW M5 E39:eBay Motors (item 280241300510 end time Oct-22-09 16:19:48 PDT)
the ebay link (like many) looks way cheesy but their website looks alright, appears to be an american company Ksport)

Ksport USA - Performance Suspension

the big problem with non-major brake calipers is rebuilds, seals, replacement discs & pads

sure you might save a TON of money up front but a brake job with them might be buying the kit all over again
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post #95 of 204 Old 12th October 2009, 03:59 AM
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Quote:
Originally Posted by tongboy View Post
the ebay link (like many) looks way cheesy but their website looks alright, appears to be an american company Ksport)

Ksport USA - Performance Suspension

the big problem with non-major brake calipers is rebuilds, seals, replacement discs & pads

sure you might save a TON of money up front but a brake job with them might be buying the kit all over again
Saw this while researching the K-sport brakes:

K-SPORT shock absorbers and 4/6/8/10 POT brake system kits are made in Taiwan with owns stable market and the annual sales volumes are exceed 10 million US dollars in the world. These shock absorbers and brake system kits can be found on many winning race teams in Southeast Asia such as most famous "MACAU GRAND PRIX", “ASIA PACIFIC RALLY CHAMPIONSHIP", "TIME ATTACK", and "EUROPEAN DRIFT CHAMPIONSHIP"

They have a cheap price, but I'd be suspicious of them

John Baas
2001 Anthracite Metallic M5
1997 Audi A4 - Too many mods to list
2003 Silverado SS

Interior
Euro Dash, Slimmbones Euro Armrest, Slimmbones Shifter/Ebrake Boots, F10 M5 Illuminated Shift Knob, UUC EVO3 Shifter, UUC DSSR, UUC Clutch Stop, Autolumination Interior LEDS, JBL MS-8, Alpine MRX-V70, Kicker Subwoofers, Polk/Boston Acoustic Speakers
Exterior
Vorsteiner Power Dome CF Hood, Euro Clear Corner Headlights w/Lamin-X, Umnitza Predator Ice V3, Umnitza 6K Headlight + Fog Light Upgrade, Umnitza V4 Side/Turn/License LEDs, CF Roundels, Black Kidney Grills, Slimmbones BigMouth Lower Grill
Drivetrain
Evolve Alpha-N Tuning, Supersprint Headers/Cats/X-pipe + Eisenmann Race Mufflers, VSL Aluminum Radiator, UUC Twin Disk Clutch, Rogue Engineering Trans Mounts
Suspension
Ground Control Coilovers, Dinan Monoballs, Dinan Rear Sway Bar w/Beastpower Brackets, Dinan Front and Rear Strut Bars, BMW Performance Front Brake Kit, StopTech SS Brake Lines, Black Stock Rims Square Setup

Coming Soon
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post #96 of 204 Old 13th October 2009, 09:57 PM
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How's this ?
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1999 Carbon Black E39 M5
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  • Tar-Ox 6 pots rear calipers 345mm slotted disc
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post #97 of 204 Old 13th October 2009, 10:14 PM
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Performance brakes installation pictures

Guys, I have some pictures of the installation of the Performance brakes, the brackets, the adaptations etc.

In the third picture, you can see the adaptations required to fit the caliper.

Oh, and you can also see that part of the cover behind the rotor has been cut away, to make room for the bigger caliper.

In the picture where the rotor is attached with the wheel bolts, the mechanic is checking if the disk will be right in the middle of the caliper or not, and tiny washers are added where required (same technique is used with e.g. AP Racing brakes).

The original brake line, and the original brake pad sensor can be reused.

If there are any questions, just shoot...
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post #98 of 204 Old 13th October 2009, 10:44 PM
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Frits - Thanks for posting. Excellent photos

A few Q's
1) How long did it take your mechanic the first time of install?
2) I cann't see what adaptions you refer to in Photo 3
3) What general additional parts etc do you need to have to hand doing this? You mention that drilling was required in the Disc, Any special care needed etc.

I'm not going to tackle job myself but my mechanic is very aprehensive in tackling this so want all knowledge to hand as I don't want my car off the road too long.

From looking at it I would anticpate that from start to finish, including drilling, adaptions etc, 3/4 hrs would be comfortable time to fit?
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post #99 of 204 Old 13th October 2009, 10:46 PM
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How well do the BMW Perf calipers hold up to track use? Are they up to the standards of Stoptech and Brembo BBK's in this regard?

2001 ///M5 - SOLD
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post #100 of 204 Old 13th October 2009, 11:22 PM
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@MarkM5!:
1. First time of install was about 3 hours. Now it's more like 2 hours, including the bleeding of the brakes
2. See red circle in attached picture...
3. You'll need a few extra bolts, since the thread in the brackets is not the same as the thread in the original brackets. I'll include those in the package I'll send you. For the drilling nothing special is required. We used a saw that works on compressed air, to cut the plate behind the rotors. Then a few clamps to make sure you don't spill too much brake fluid while there's no caliper installed (the red thing in one of the pictures of my previous post). A few washers, to make sure the bracket can be mounted in the correct position (seen on the pictures). Brake fluid... Maybe a tool for automatic bleeding the brakes, allthough you could also do it by just pushing the pedal...

Note: you might have to bleed these calipers more than once. And it's normal that the pedal feels a bit soft in the beginning. Not sure if it's the rotors or the pads, but we notice this every time again...

@firebird400: I had one customer that used these brakes on track, on an E90 330i. He was pretty pleased with them, and had no complaints. I'll test my setup on the Nurburgring soon, and I'll let you know...
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