The DEFIVfab E9X M3 Differential Lockdown Kit, EXCLUSIVELY @ AUTOcouture Motoring

Lalit@AUTOcouture · 05-13-2013, 12:37 PM

Available in 4130 chromoly steel or 6AL-4V Titanium, all units are TIG welded in a custom jig for exacting tolerances and fitment.

Kits include:
- 2 CNC 6061-T6 billet aluminum front bushing assemblies.

- Rear brace unit, all 4130 braces feature 3D modeled and laser cut center plates and full chromoly construction for maximum strength to weight.

- All 4130 chromoly units are powdercoated wrinkle black as standard finish, other colors/finishes are available at additional costs as per request. $968 + shipping.

- Ti units are available bare with light surface conditioning, each unit is numbered, polishing available at additional costs. $1850 + shipping.

- Braces feature custom polyurethane bushings and mounting hardware for mounting to subframe.

- Roughly a 4 hour install, which will be discounted if installed in house.

The kit's design and function is to eliminate wheel hop, sloppy shift feel and power delivery on modified or hard driven E9X M3's. Chassis predictability and power transfer to the wheels is vastly improved without sacrifice. A "must have" accessory for any supercharged or modified M3.

For anyone local who wants a ride just shoot me a PM! All high quality pictures can be found here.

Don't let this happen to you!

NikB316 · 05-13-2013, 04:38 PM

Awesome to see this product offered by ACM so it can help out as many M3 owners as possible. Guys, this is one of the best mods I have put on my car without a doubt. The difference was night and day. As Lalit said, it is a must have and won't cost you an arm and a leg like most M3 mods!

THE TECH · 05-14-2013, 09:45 AM

Looks good.

No links to pricing though!

Lalit@AUTOcouture · 05-14-2013, 09:52 AM

Quote:

Originally Posted by THE TECH

Looks good.

No links to pricing though!

I see what you did there

. Updated with pricing!

My Schnell · 05-14-2013, 04:33 PM

Is there a DIY link or guide? Is there welding involved?

defivfab · 05-14-2013, 04:43 PM

there are full instructions provided and no welding required, just slight trimming and enlargement of two existing holes.

Tim B. · 05-14-2013, 06:16 PM

Can you elaborate more on the installation(trimming, etc)........4 hours seems like a long time for what's being installed

Has anybody used it on the track or is this geared for more straight line performance? Thanks.

uniter · 05-14-2013, 08:12 PM

Tim B. The rear two rubber differential bushings need to be pressed out. This takes the majority of the time. Removing the exhaust and heat shields, then re-installing takes the rest.

vinniechin · 05-14-2013, 08:41 PM

How loud is the gear whine with the aluminum bushings?

defivfab · 05-14-2013, 10:53 PM

here's a link to the install guide:
http://www.defivfabrication.com/inst...ownInstall.pdf

In the cars that have been equipped thus far, a few noticed a slight whine on deceleration over 50mph, but quieted down within a couple hundred miles of driving as the poly bushings seated completely. Some noticed no noise whatsoever. In the one case that consistently made noise, It was discovered that both carrier bearings inside the diff were damaged, and no noise has been present since the repair.

Tim B., It is designed for use in any environment that one would subject it to. It's sole purpose is to eliminate drivetrain slack and provide more predictable power delivery to the wheels in any situation. The suspension is completely unaffected by the modification altogether.

Tim B. · 05-15-2013, 04:35 PM

Quote:

Originally Posted by defivfab

here's a link to the install guide:
http://www.defivfabrication.com/inst...ownInstall.pdf

In the cars that have been equipped thus far, a few noticed a slight whine on deceleration over 50mph, but quieted down within a couple hundred miles of driving as the poly bushings seated completely. Some noticed no noise whatsoever. In the one case that consistently made noise, It was discovered that both carrier bearings inside the diff were damaged, and no noise has been present since the repair.

Tim B., It is designed for use in any environment that one would subject it to. It's sole purpose is to eliminate drivetrain slack and provide more predictable power delivery to the wheels in any situation. The suspension is completely unaffected by the modification altogether.

Good info, thanks! I'm strongly considering it, still undecided.

Bubbles · 05-15-2013, 05:30 PM

Weight of each version?

defivfab · 05-15-2013, 09:45 PM

Quote:

Originally Posted by Bubbles

Weight of each version?

4130 version weighs in about 13lbs, Ti brace weighs 2lbs 8oz.

Lalit@AUTOcouture · 05-16-2013, 08:49 AM

Quote:

Originally Posted by Tim B.

Good info, thanks! I'm strongly considering it, still undecided.

Do it and don't look back. Easily the best mod I've done to the car!

SSRE · 05-17-2013, 03:50 PM

Quote:

Originally Posted by defivfab

4130 version weighs in about 13lbs, Ti brace weighs 2lbs 8oz.

YOWZA! is TI REALLY that much lighter?

defivfab · 05-17-2013, 04:56 PM

Quote:

Originally Posted by SSRE

YOWZA! is TI REALLY that much lighter?

Yeah, It's a pretty dramatic difference.

Lalit@AUTOcouture · Yesterday, 10:18 AM

All PM's answered. Bump!

s65e90 · Today, 08:59 AM

this is a nice piece, but that price is ridiculous for what it is. M tax to another level. Prices on these cars really need to start approcahing reality as the e9x gets older and cheaper

05-13-2013, 12:37 PM	#1
Lalit@AUTOcouture BimmerPost Supporting Vendor Drives: Bicycle Join Date: Feb 2010 Location: 201 Posts: 346 iTrader: (1)	The DEFIVfab E9X M3 Differential Lockdown Kit, EXCLUSIVELY @ AUTOcouture Motoring Available in 4130 chromoly steel or 6AL-4V Titanium, all units are TIG welded in a custom jig for exacting tolerances and fitment. Kits include: - 2 CNC 6061-T6 billet aluminum front bushing assemblies. - Rear brace unit, all 4130 braces feature 3D modeled and laser cut center plates and full chromoly construction for maximum strength to weight. - All 4130 chromoly units are powdercoated wrinkle black as standard finish, other colors/finishes are available at additional costs as per request. $968 + shipping. - Ti units are available bare with light surface conditioning, each unit is numbered, polishing available at additional costs. $1850 + shipping. - Braces feature custom polyurethane bushings and mounting hardware for mounting to subframe. - Roughly a 4 hour install, which will be discounted if installed in house. The kit's design and function is to eliminate wheel hop, sloppy shift feel and power delivery on modified or hard driven E9X M3's. Chassis predictability and power transfer to the wheels is vastly improved without sacrifice. A "must have" accessory for any supercharged or modified M3. For anyone local who wants a ride just shoot me a PM! All high quality pictures can be found here. Don't let this happen to you! __________________ AUTOcouture Motoring \| Facebook \| YouTube \| Lalit@AUTOcouturemotoring.com \| 201.666.3500 Last edited by Lalit@AUTOcouture; 05-14-2013 at 09:51 AM.
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05-13-2013, 04:38 PM	#2
NikB316 Lieutenant Drives: '11 E92 M3 w/ AA S/C Join Date: Aug 2007 Location: Somerset County Posts: 472 iTrader: (3)	Awesome to see this product offered by ACM so it can help out as many M3 owners as possible. Guys, this is one of the best mods I have put on my car without a doubt. The difference was night and day. As Lalit said, it is a must have and won't cost you an arm and a leg like most M3 mods! __________________ 2011 Space Grey E92 M3 Active Autowerke Generation 2 Level 3 Supercharger 586whp 398wtq SAE BMW M Performance Exhaust \| ACM Test Pipes \| Brembo BBK \| Defiv Rear Diff Brace \| Volk TE37SL Vorsteiner CF Front Spoiler, Rear Diffuser II & Boot Lid Gintani CF Side & Rear Skirts \| ACM Custom Headlights

05-14-2013, 09:45 AM	#3
THE TECH BimmerPost Supporting Vendor Drives: BPMsport 2012 E92 M3 Join Date: Jun 2011 Location: Kansas Posts: 11,919 iTrader: (39)	Looks good. No links to pricing though! __________________ Check us out on Facebook at BPMsportLabs

05-14-2013, 04:33 PM	#5
My Schnell Private Drives: E90 ///M3 SG Fox Red 6MT Join Date: Sep 2008 Location: Rheinland-Pfalz Posts: 64 iTrader: (1)	Is there a DIY link or guide? Is there welding involved? __________________ 2009 E90 ///M3 SG Fox Red 6MT, Prem, Tech, EPS, PDC, Fold Down Rears, Heated Seats, iPod ... Eisenmann Sport w/connecting pipes, Rear Fog LCI switch, MS Filter, Matt black Front & Side Grill/Gill, Smoked Reflectors, Black 19" ZCPs and EAS AngeliBright-All Wife approved!!

05-14-2013, 08:12 PM	#8
uniter Black on Black on Black. Drives: 335i/6mt Sport,Nav,Prem. Join Date: Feb 2010 Location: New Hope, PA Posts: 362 iTrader: (1)	Tim B. The rear two rubber differential bushings need to be pressed out. This takes the majority of the time. Removing the exhaust and heat shields, then re-installing takes the rest. __________________ LEMANS BLUE M-TECH E92->PROCEDE REV3::ETS 7" FMIC::RACELAND DPS::WAVETRAC DIFF::DEFIV DIFF LOCKDOWN::DEFIV OCC::DEFIV INTAKE::RB PCV

05-14-2013, 04:43 PM	#6
defivfab New Member Drives: in pieces... Join Date: Mar 2013 Location: United States Posts: 14 iTrader: (0)	there are full instructions provided and no welding required, just slight trimming and enlargement of two existing holes.

05-14-2013, 06:16 PM	#7
Tim B. Lieutenant Drives: 2010 Jet Black E92 M3 Join Date: Dec 2009 Location: Baton Rouge, LA Posts: 474 iTrader: (0)	Can you elaborate more on the installation(trimming, etc)........4 hours seems like a long time for what's being installed Has anybody used it on the track or is this geared for more straight line performance? Thanks.

05-14-2013, 08:41 PM	#9
vinniechin Vinnie Drives: E93 Space Gray DCT Join Date: Jun 2012 Location: Northern NJ Posts: 45 iTrader: (0)	How loud is the gear whine with the aluminum bushings?

05-14-2013, 10:53 PM	#10
defivfab New Member Drives: in pieces... Join Date: Mar 2013 Location: United States Posts: 14 iTrader: (0)	here's a link to the install guide: http://www.defivfabrication.com/inst...ownInstall.pdf In the cars that have been equipped thus far, a few noticed a slight whine on deceleration over 50mph, but quieted down within a couple hundred miles of driving as the poly bushings seated completely. Some noticed no noise whatsoever. In the one case that consistently made noise, It was discovered that both carrier bearings inside the diff were damaged, and no noise has been present since the repair. Tim B., It is designed for use in any environment that one would subject it to. It's sole purpose is to eliminate drivetrain slack and provide more predictable power delivery to the wheels in any situation. The suspension is completely unaffected by the modification altogether. Last edited by defivfab; 05-14-2013 at 10:58 PM.

05-15-2013, 05:30 PM	#12
Bubbles Green Bastard Drives: ZCP-Powered Join Date: Jun 2007 Location: Bishop Bend Posts: 3,523 iTrader: (3)	Weight of each version? __________________

Yesterday, 10:18 AM	#17
Lalit@AUTOcouture BimmerPost Supporting Vendor Drives: Bicycle Join Date: Feb 2010 Location: 201 Posts: 346 iTrader: (1)	All PM's answered. Bump! __________________ AUTOcouture Motoring \| Facebook \| YouTube \| Lalit@AUTOcouturemotoring.com \| 201.666.3500

Today, 08:59 AM	#18
s65e90 New Member Drives: 2009 e90 Join Date: May 2013 Location: SoFlo Posts: 14 iTrader: (0)	this is a nice piece, but that price is ridiculous for what it is. M tax to another level. Prices on these cars really need to start approcahing reality as the e9x gets older and cheaper __________________ Gintani-AA-K&N-elf

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