Loading... Please wait...
  • Call us on 978-494-4104
  • My Account
  • Gift Certificates
  • Image 1

Rear BBK (Big Brake Kit), JHM 325mm (12.8") for B5 A4-S4

$695.00
Quantity:
SKU:
BBK-R325B5S4

Product Description

PROUDLY DESIGNED AND BUILT IN THE USA


**NOTE: As of 8/1/2012, all JHM Lightweight Rotors will now look like the picture below!!!***

Click to enlarge picture


Due to popular demand, all of our 2-piece, lightweight rotors will now come with black anodized rotor hats featuring Type 3, hard anodizing, the highest quality and hardest anodizing available for aluminum. This will make the rotor hats more resistant to fade and wear and will hide brake dust better. Due to popular, demand all lightweight rotor rings will also feature zinc plating. This high quality coating will slow the effects of corrosion and keep your rotor rings looking good through the winters.

IN STOCK AND READY TO SHIP!
FINALLY a low cost 325mm rear BBK (Big Brake Kit) for your B5 A4/S4. This is the BEST BBK we make to compliment our massive 350mm 6-piston Cayenne Caliper BBK for the front. Also this kit cannot be bought anywhere else since it is a custom rotor ring and hat that is not available from any other source. NOTE: A4 requires S4 rear calipers and caliper hangers to do this conversion. Use the drop down box on the ordering page to add these.

Stock vs. JHM
-Rotor OD: Stock B5 S4 = 256mm(10.07"), Stock B5 A4 = 245mm(9.64"), JHM = 325mm(12.8") - Almost 3 full inches LARGER for B5 S4 and over 3 inches for B5 A4 for better braking performance.
-Rotor Weight: Stock = 12lbs(each), JHM = 11.5lbs(each) - 5% LIGHTER, .5lbs less each - BIG BRAKES WITH NO WEIGHT GAIN!
-Rotor Cooling Air-gap: Stock = 8.5mm(.334"), JHM = 13mm(.511") - LARGER for better cooling
-Rotor Cooling Center Fin Design: Stock = Straight Fin, JHM = Airfoil - MORE EFFICIENT for better cooling
-Rotor Thickness: Stock = 22mm(.866"), JHM = 22mm(.866") - SAME
-Bolt pattern: - SAME (fits like an OEM rotor would)

INSTALL NOTES: Due to the relocation of the rear caliper making it more outboard you are required to unsnap and release the plastic sleeve for the parking brake cable in the lower rear control arm. This is necessary to allow the cable to be pulled rearward some so it can reach the caliper without kinking or excessive stretching. (NOTE: This sleeve is usually brittle and prone to breaking and sometimes hard to release, so don't be worried if it breaks when performing this mod. As long as you can get it so the cable can be pulled rearward some you did the job correctly)

INCLUDES:
2 - JHM 2-piece Lightweight 325mm (12.8") Rear Rotors.
2 - Caliper adapter brackets CNC machined from 1/2" steel with a high quality zinc coating. (These are supplied to us by 034 Motorsport since we didn't see the need to make these as well and thus allowed us to get our BBK to market quicker with our larger B6-B7 S4 rear lightweight rotors)
4 - Caliper adapter bracket mount bolts (also supplied by 034 to us)
2 - DOT Stainless Brake Lines and adapters for B5 S4 calipers (also supplied by 034 to us)
-Works with stock replacement B5 S4 rear brake pads. Such as OEM, Hawk, PBR, Mintex, Etc. We sell pads as well, if you don't see the ones you want contact us for details.

OPTIONS: Use drop down box to select "Add B5 S4 Rear Calipers" if you have a B5 A4.

Outer ring specs:
We worked closely with a race brake manufacturer that supplies many NASCAR racers and a couple major brake kit companies. Due to their expertise we chose to have them build us the outer rings to our specs to fit the B5 A4-S4. 12 attachment points for durability and strength.

Center hat specs:
We CNC machine the Aluminum center hats in house based on their recommended materials and thicknesses for durability. 12 attachment points for durability and strength. We also engrave JHM in them in 3 locations equal from each other, it looks clean and doesn't jump out or look tacky. Click to enlarge picture

NOTE: With the installs we have done we have found that our slot design is whisper quiet.
Click to enlarge picture

Note - This brake upgrade will fit under most 18" inch or larger wheels. However, we have had customers inform us that this Rear BBK does not fit under VMR V710 Wheels in the 18 x 8.5, ET 35 configuration.
For shipping quotes: Please sign in or join then put the items you want in your shopping cart and proceed to checkout.

Fitment:
Note: JHM works hard to make all fitment charts as accurate as possible please read the product description to make sure this is correct for your vehicle.
Make Model Year Range
Audi A4 - B5 1996 - 2001
Audi RS4 - B5 2000 - 2002
Audi S4 - B5 2000 - 2002

Find Similar Products by Tag

325mm  A4  B5  B5A4  B5RS4  B5S4  bbk  Big  Brake  JH Motorsports  JHM  Kit  Rear  RS4  S4  Upgrade  

Product Reviews

Write Review

This product hasn't received any reviews yet. Be the first to review this product!