OEM size lightweight rotors

[LudoS4]

Does anyone know a lightweight rotor company which has made something for B8 S4 ?

I know that Girodisc has already built lightweight rotors for R8, RS4, Porsche, Lambo, EVO, Impreza etc... but not for B8 S4 yet

[richib86]

JHM will have them in the next few weeks

[ENV²]

Been waiting for JHM to make these... I hope they are better than the B7 ones I heard they arent Zinc coated and rust and look like shit all the time.

[LudoS4]

Thanks.

[UmIsThisThingOn]

Been waiting for JHM to make these... I hope they are better than the B7 ones I heard they arent Zinc coated and rust and look like shit all the time.

You could always get that done separately

[apexit1]

Rears too right?

[LudoS4]

Been waiting for JHM to make these... I hope they are better than the B7 ones I heard they arent Zinc coated and rust and look like shit all the time.

Yeah me too. I am looking for high end-product. May be I will contact Girodisc to know if they plan to built some. Would any of you be interested in order to get group pricing ?

[audistealth]

How much, slotted/drilled/both/neither, straight/directional vane, one piece / two piece with iron ring and aluminum hat, individual weight difference, etc etc?

[Vi112]

Yeah me too. I am looking for high end-product. May be I will contact Girodisc to know if they plan to built some. Would any of you be interested in order to get group pricing ?

I would, especially for rears if JHM already has fronts.

[Vi112]

Have just found this:

Two-piece rotor (Open Slot) - AUDI S4 FRONT 04-11
Two-piece rotor (Open Slot) - AUDI S4 REAR 04-11

Any thoughts?

[p0rto]

Have just found this:

Two-piece rotor (Open Slot) - AUDI S4 FRONT 04-11
Two-piece rotor (Open Slot) - AUDI S4 REAR 04-11

Any thoughts?

nice find! Racing Brake makes good stuff, but man thats pricy for just rotors lol

[blackswan]

What are people's opinions of Adams Rotors?

[richib86]

The ones I have coming next week are zinc coated, the do offer it from JHM. I was concerned about the rust too. The stoptechs I have coming are also zinc coated

Been waiting for JHM to make these... I hope they are better than the B7 ones I heard they arent Zinc coated and rust and look like shit all the time.

[richib86]

JHM was stating 8lbs savings per corner

[L0U]

the parts guy online I looked up...54 bucks each for the mass produced brands in 345x29.5mm
http://www.partsgeek.com/catalog/201...ake_rotor.html just for the price relitivity point of view.

http://www.drivewire.com/brand/winhere-manufacturing/ premium china made.

[MRxPresident]

Have just found this:

Two-piece rotor (Open Slot) - AUDI S4 FRONT 04-11
Two-piece rotor (Open Slot) - AUDI S4 REAR 04-11

Any thoughts?

that's a ridonkulus price.... that's half way there to a stoptech kit... you might as well go with a stoptech kit for that

[ENV²]

The ones I have coming next week are zinc coated, the do offer it from JHM. I was concerned about the rust too. The stoptechs I have coming are also zinc coated

If I remember correctly though, the ones you have coming from JHM are for the RS5 brake setup right?

Im wondering are they making them four our stock brake size and how much will zinc coating add?

[richib86]

they have standard sized rotors coming front and rear, i was getting the rs5 fronts and s4 rears but am now selling the rs5 fronts. i have a preproduction set coming in the next week with black anodized hats to match the front stoptechs, i forget what the zinc coating costs but i know it wasnt much and a worthwhile option for us in the northeast with all the road salt

If I remember correctly though, the ones you have coming from JHM are for the RS5 brake setup right?

Im wondering are they making them four our stock brake size and how much will zinc coating add?

[LudoS4]

How much, slotted/drilled/both/neither, straight/directional vane, one piece / two piece with iron ring and aluminum hat, individual weight difference, etc etc?

I don't know, but if they plan to do ligthweight rotor for B8 S4, I guess it would be in price range of Mustang GT model.
For exemple for Mustang GT model is :
- 2 piece
- The central “hat” : 6061-T6 aircraft specification aluminum
- disc is made from cast iron, constructed in the USA
- weigth saving : 3,5 lbs per corner
- Pricing : 700$ front

You can go on web site : http://www.girodisc.com/Girodisc-Fro...GT_p_6298.html

[LudoS4]

JHM was stating 8lbs savings per corner

That's a lot !!

I am eager to have more information on this product.

[richib86]

they're going to be priced the same as the b6/7 s4 rotors

That's a lot !!

I am eager to have more information on this product.

[Vi112]

I mailed Girodisc, here is the reply:

We’re thinking about it actually. We’ve had a few people just recently ask us about making some. I’ve been in talks with Jeff over at USP as well as he really wants us to build some. We’d like to have a pre-order of around 10 sets to do a production run on these. I would say either start a thread on the forums or give Jeff a call over at USP and bug him about starting a group buy on there. I’m an Audi guy myself, currently own two B5 S4s and I would love to build some of these rotors for you guys. Let me know what you think. Thanks!

So, there can be one more option, if we make a group buy :)

[Akatsuki...]

Can anyone comment on the quality of the JHM Lightweight rotors?

[LudoS4]

If they can saved at least 8 lbs per corner (front and rear) I'am in

I mailed Girodisc, here is the reply:

We’re thinking about it actually. We’ve had a few people just recently ask us about making some. I’ve been in talks with Jeff over at USP as well as he really wants us to build some. We’d like to have a pre-order of around 10 sets to do a production run on these. I would say either start a thread on the forums or give Jeff a call over at USP and bug him about starting a group buy on there. I’m an Audi guy myself, currently own two B5 S4s and I would love to build some of these rotors for you guys. Let me know what you think. Thanks!

So, there can be one more option, if we make a group buy :)

[KayS4]

If they can saved at least 8 lbs per corner (front and rear) I'am in

Same here =) haha ^^ In another 15k ill be looking at rotors!

[audistealth]

Same here =) haha ^^ In another 15k ill be looking at rotors!

When did your first set of rotors need to be replaced?

[Russtty]

I mailed Girodisc, here is the reply:

We’re thinking about it actually. We’ve had a few people just recently ask us about making some. I’ve been in talks with Jeff over at USP as well as he really wants us to build some. We’d like to have a pre-order of around 10 sets to do a production run on these. I would say either start a thread on the forums or give Jeff a call over at USP and bug him about starting a group buy on there. I’m an Audi guy myself, currently own two B5 S4s and I would love to build some of these rotors for you guys. Let me know what you think. Thanks!

So, there can be one more option, if we make a group buy :)

Did anything ever come of this? Currently in the market for some new brakes!

[JMN]

Any updates?

[richib86]

i should have my rears in the next week, ill report back as soon as i get them

[KayS4]

When did your first set of rotors need to be replaced?

This would be my first set or Rotors I am coming up on 35k kms but believe it or not so far they seem okay I may last another 15k =) I am more so looking forward to pads with less dust! smh

[JMN]

Any news? I need rotors soon ;)

[Akatsuki...]

any updates?

[Stereodude]

JHM will have them in the next few weeks

So, that was months, not weeks I take it?

[LudoS4]

That's coming. This more info from JHM :

'' May 21st : Here is a little bit more info on the rotors for your B8 S4. Right now we are anticipating the price of the fronts to be close to the B6/B7 S4 rotors, somewhere around the $650.00 mark and sized at 345mm, the same as stock. The rear rotors are going to be sized at 330mm also the same as stock, and will be priced similar to the RS4 Rear rotors. The price of the RS4 rear rotors is $560.00 so look for the rear B8 S4 rotors to be price around there. We are hoping to have the rotors finished and for sale within the next 1-2 months so please keep your eyes and ears out for details. If you would like to be added to a list of customers that we have started please reply to this email with your contact information so we can notify you when they are available. Thanks for the email and we look forward to hearing from you soon.''

[skiracerblah]

I'm getting some OEM size replacement slotted rotors from Centric Parts, the same company that owns Powerslot and Stoptech. Getting slotted rotors made from the same alloy as they use on the Stoptech big brake kits and not the cheapo rotor blanks. Might take me a month to 6 weeks to get them. Note, these will be 1 piece rotors, not 2 piece.... Stay tuned...

[apexit1]

lightwieght or regular?

[blackswan]

I've just ordered a set of cross drilled rotors made by Stoptech, from modbargains.com.

[richib86]

my rear jhm rotors are at the shop and will be going on this coming week along with some other goodies

[skiracerblah]

lightwieght or regular?

They'll be a 1 piece rotor. So, they won't be as light as a 2 piece obviously. However, they won't be priced as high as a 2 piece rotor either...

[westwest888]

I would expect a normal OEM replacement to cost up to $280 for the rears. $758 is not bad at all for a nice light two piece set, or $380 per rotor. Beats paying $3000-4000 for a rear BBK that you don't need.

3-4 pounds per corner for the rotor is dead on. You save another 4-5 pounds for the mono block caliper, if you're doing a full brake kit.