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Rear Diff Mount, Apikol Polyurethane, B6-B7-C6 Chassis

SKU: APK-10A02151

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Apikol has switched to a newer, machined mount as opposed to the old style cast one. So your mount will not look exactly like the picture, it will be machined instead out of a piece of billet aluminum.

As always, JHM tests all the products we sell even if we do not make them in house. This rear diff mount is no exception and performs well. We have noticed cleaner and crisper launches, aggressive upshifts and downshifts

In typical JHM style here are 2 videos of some of the abuse we have put this mount through on our in house 2005 B6 S4.

JHM burnouts and abuse with our B6 S4 -->HERE>
JHM 12.97 @ 109.1 all motor and Bolt-on parts quarter mile pass -->HERE>

APIKOL Performance Automotive Components is proud to announce the release of its upgraded Rear Differential Mount System for the Audi B6 and B7 - A4, S4 and RS4 chassis. This Rear Differential Mount takes only 15 to 30 minutes to install.

It is designed to eliminate excessive rear differential movement and cure the dreaded "clunk" caused by aggressive shifting and/or acceleration. This is a must-have upgrade for higher mileage vehicles as well as anyone looking to increase drivetrain performance.

Material High-strength cast aluminum alloy and custom molded urethane bushings.

2002-2005 B6 Audi A4 Quattro
2005.5-2008 B7 Audi A4 Quattro
2003-2005 B6 Audi S4
2005.5-2008 B7 Audi S4
2006-2008 B7 Audi RS4
2005-2011 C6 Audi A6

Installation is straight forward and only takes about 15 minutes to do. Only 4 bolts and 1 nut is involved and it is a straight swap and bolt on part.

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This product fits the following vehicles:
Make Model Chassis Engine
Audi S4 B6 (2003-2005) 4.2l V8 40v
Audi A4 B6 (2002-2005) all
Audi A4 B7 (2005.5-2009) all
Audi RS4 B7 (2006-2009) 4.2l V8 32v FSI
Audi S4 B7 (2005.5-2009) 4.2l V8 40v
Customer Reviews (6)
Just got it installed today on my 04 S4, turned out to be easier to install then what it looked like. Amazing results... the factory one was fine, but the density was horrible from that spongy rubber... I am going to love this mod Review by David (Posted on 11/17/2012)
Great piece, have had it installed since Fall 09. Definitely improves driveability in all situations. Review by Brian (Posted on 4/25/2010)
I installed this on my 04 S4 in about an hour. Very easy install with well documented instructions. Easily a great mod from stock,this diff mount really tightened my driveline up in a major way.Very noticable indeed. My stock unit was like a sponge compared to this very high quality unit. Highly reccomended!! 5 Stars here. Review by brian (Posted on 3/29/2010)
I installed this on my 2004 S4 and what a difference this made! Definitely stiffened up my drive-train. The old mount was in one piece but definitely had a lot of slop. Worth every penny. Review by ray (Posted on 3/27/2010)
2005 B6 S4 - A+ Absolutely Terrific

Fantastic product, makes the shifting feel so much smoother and more positive. It's how it should've felt from the factory. Also shift feel during very aggressive driving is far more predictable.

Excellent product, must have mod.
Review by Brian (Posted on 9/14/2009)
This is a great modification if you like to shift hard and you hear the dreaded rear diff clunk. That clunk is your rear diff slamming on the bottom of the floor board!!! This mount eliminates that clunk. All without compromising NVH. I have absolutely no more NVH than I did previous to the install of this diff mount, but my rear diff never clunks on hard shifting now. Perfect - the way the car should have been released from the factory. Review by David (Posted on 11/16/2008)
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You're reviewing: Rear Diff Mount, Apikol Polyurethane, B6-B7-C6 Chassis
Off-road Use

By Purchasing any Off-Road use ONLY products from JH Motorsports, Inc. I acknowledge and understand the following disclosure. (This notice is located at the bottom of the page description of affected products on our website.)

Vehicle Code § 27156:
(b) No person shall operate or leave standing upon a highway a motor vehicle that is required to be equipped with a motor vehicle pollution control device under Part 5 (commencing with Section 43000) of Division 26 of the Health and Safety Code or any other certified motor vehicle pollution control device required by any other state law or any rule or regulation adopted pursuant to that law, or required to be equipped with a motor vehicle pollution control device pursuant to the National Emission Standards Act (42 U.S.C. Secs. 7521 to 7550, inclusive) and the standards and regulations adopted pursuant to that federal act, unless the motor vehicle is equipped with the required motor vehicle pollution control device that is correctly installed and in operating condition. No person shall disconnect, modify, or alter any such required device.
(c) No person shall install, sell, offer for sale, or advertise any device, apparatus, or mechanism intended for use with, or as a part of, a required motor vehicle pollution control device or system that alters or modifies the original design or performance of the motor vehicle pollution control device or system.

Health and Safety Code § 43000:
43001. The provisions of this part shall not apply to:
(a) Racing vehicles.

As the aforementioned code sections outline, it is against the law to operate or use a vehicle on public streets or highways with modified, altered, or disconnected motor vehicle pollution control devices. This may include but is not limited to, Evaporative Fuel Controls, Catalysts, DPF, PTOX, PCV Systems, Exhaust Gas Recirculation Systems, Oxygen Sensors, Thermostatic Air Cleaners, Air Intake Systems, Fuel Injectors, Regulators, Adjustable Cam Gears, ECU Programming, Mapping, or other Computer Modifications. Air Pumps, Air Injection, Timing, and any other Emission System Modification(s).

Purchaser acknowledges and certifies to JH Motorsports Inc., that Purchasers vehicle will only be used for racing applications or off road vehicle use only. Purchaser requests these modifications for the purpose of enhancing the vehicle for competitive Racing Applications and will not use this vehicle on public streets or highways. Purchaser agrees to indemnify JH Motorsports Inc., all employees, officers, owners, and subsidiaries for any civil or criminal liability arising out of use of Purchasers vehicle on public streets or highways as Purchaser has been duly notified of the laws and regulations regarding disconnecting, alteration, or modification of a vehicle’s pollution control devices. Purchaser understands and has been advised the driving of a vehicle on public streets or highways could result in criminal or civil penalties.

Prop 65

Warning: This product may contain a chemical known to the State of California to cause cancer, birth defects, or other reproductive harm.

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