part# 955 351 421/422-70 for the calipers.Personally,you might fit the generic 18ZR/ZL red cayenne calipers on these HP2 strut too.
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one of a few I5 from Asia. -
Very nice..brilliant really! 
Shawn Olsen Austin TX ACNA#1616
//95 S6 RS2// 13 A6 3.0 // 12 S4 MT // 12 GTI aprComment
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for 17ZR,ZL calipers you would need 330mm Rotors with some slightly grinding job on the mounting bolts,18ZR has slightly longer on the bracket for the bigger rotor,i think it would need 350mm rotor discs.Anyway,everything needs to try out. you might try to mount the calipers with pads on the struts and measuring what's the size of the rotors they required.This method is straightforward and least error in this case.you just measure them from the center of the hub to the outer side of the brake pads.
now you will have radius value and then multiply by 2.you will have the rotor size on your hand now.
one of a few I5 from Asia.Comment
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Well i will have some photos of 18ZR calipers on Urs4 with HP2 struts.the car is belong to the friend of mine.He was using multi piece 360mmX34mm Discs.will try to post ASAP.one of a few I5 from Asia.Comment
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well onfortunately I don't own an UrS4/S6 and the calippers are way too big for my type 85
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so how much do you want for them then?91 S2 coupé - RIP
98 S8 - Luxury bargeComment
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Wow, this is a nice mod. The calipers are enormous!
I have also a set of Brembos lying around and have ponder to do a similar mod to get rid of the UFO-brakes. They are also very big Range Rover Sport 4-pot calipers and would need 30x340-360mm size disc. I would have to change my winter wheels from 16" -> 18"...Last edited by Thuppu; 15 September 2010, 09:33.
Audi UrS4 Avant 2.5 20vt - twincharged - Project
Audi 80q B4 Sedan 2.2 20vt - Daily user
BMW 320d Touring e91 M-Sport - Daily user
BMW 740iA e38 - ProjectComment
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Do it Thuppu
342x34mm mov'it set on my UrS4...All quattro products have been dermatologically tested, and are safe for daily use.
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Nice, do you gedu have any pics of the setup?
Audi UrS4 Avant 2.5 20vt - twincharged - Project
Audi 80q B4 Sedan 2.2 20vt - Daily user
BMW 320d Touring e91 M-Sport - Daily user
BMW 740iA e38 - ProjectComment
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Only a bad phone pic, have to take better ones some day
All quattro products have been dermatologically tested, and are safe for daily use.
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Does this Cayenne Callipers still work on your S6. Can you make more Pictures from the things what you have to change to put the callipers on the S6 wheel bearing ?Comment
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Wow...nice Work!!!Comment
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I have changed the calipers to 955 cayenne calipers now.one of a few I5 from Asia.Comment
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why?91 S2 coupé - RIP
98 S8 - Luxury bargeComment
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