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      02-14-2012, 06:29 PM   #1
Mike@VAC
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Post Super Sale! 335i,135i Quaife Equipped Performance Built Differential - Ends 3/12/12!

Since the group buy was a bit confusing, I went to the boss man and convinced him that I should simply offer the 10+ pc group buy rate as a limited sale. So, we changed this thread to a Super Sale and you all win! This is a once in a lifetime sale - there is no better time to buy

VAC Performance Built Differential with Quaife - A.T.B. LSD

Sale Ends: 3/12/12 4:00AM EST (absolute last day, no exceptions)

Welded core - $2,278 (insane $300 savings!!)

Bolted core - $2,049 (awesome $200 savings!)

Learn what fits your car and place an order here

Note: Your car has either a welded or bolted differential. ALL product and application information can be found in the link above to ensure you choose the proper unit.




Click here to see how we build these differentials in house.


VAC Tips:
-We have run a Quaife ATB HARD in our daily driven and often tracked 135i with absolute success.
-We have sold a ton of these to other 135i and 335i owners with absolutely NO problems.
-The ATB is the most popular unit that we install here at the shop on E8x and E9x platforms.
-Additionally we have installed dozens of Quaife units in platforms other than E8x/E9x and they always perform flawlessly.

Why do you want a Quaife LSD?
Improved acceleration, traction and stability. Rather than using clutch plates as a method of operation, the Quaife ATB uses sets of floating helical cut gear pinions that run in pockets and mesh during normal driving. Should one of the driven wheels start to spin however, the helical gears start to generate a torque bias thanks to the axial and radial thrust of the helical gear pinions in their pockets. The result is a progressive transfer of torque away from the spinning side of the axle to the driven wheel, which is now capable of transmitting a greater proportion of torque. Unlike a plate style LSD the Quaife unit delivers performance without the need for strip downs and rebuilds. There are no plates or gears to wear or break and the ATB units retain standard vehicle lubrication.
  • All QUAIFE differentials come with a life time warranty.
  • Maximizes traction and minimizes wheel spin
  • Proven in drag and circuit racing, rallying and road use
  • Maintenance free design and retains standard axle lubrication
  • Produced from British Steel billets throughout
  • CAD designed and CNC machined then inspected to ISO 9001 standards
  • Used by Ford, GM and Daimler-Chrysler as original equipment

Why VAC?
VAC Performance Rear Differentials are built to last with the highest quality components, procedures, and technical expertise in the industry. We have been building BMW differentials since the 1980s - 2002, E46, E92, street, race - we have done it. We have been building various differentials for the last 40 years, so you can rest assured that the job will be done right the first time. Our BMW differentials are run in countless race series and by hundreds of street customers because our quality and options are unmatched. All is performed in our complete machine shop which ensures top qualify control. We do not have to worry about outsourcing it to a vendor who may or may not do the job properly. There will be no back log. We are proud of our process and we invite anyone to stop by the shop for a tour.

Refunds
-There are NO frivolous refunds on Super Sale orders
-Only replacement of defective, or mis-shipped products are available
-Members cannot change ratios after product is ordered

Cores
We have a number of 3.08 cores already in house, so there will be no problems kicking this off properly.

Inventory


*note: since these are built to order there is an actual build time. We usually deliver in less than 2 weeks.

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Teaser pics:











VAC Performance Build Differential with optional Billet Differential Cover

Last edited by Mike@VAC; 03-01-2012 at 11:16 AM.
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      02-17-2012, 06:52 PM   #2
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Thanks for all the PMs, emails, calls guys!

Core ring gears about to be separated!

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      02-17-2012, 06:59 PM   #3
cooler2442
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How long does the labor take a shop usually for the 135i DCT install?
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      02-17-2012, 07:00 PM   #4
ilikebmxbikes
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could we get an update on where the groupbuy stands? i think a lot more people would be motivated to enter if they knew the status
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      02-18-2012, 10:17 AM   #5
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Quote:
Originally Posted by cooler2442 View Post
How long does the labor take a shop usually for the 135i DCT install?
~3 hours is a fair quite for removal of your stock final drive, and installation of the new built final drive.

Quote:
Originally Posted by ilikebmxbikes View Post
could we get an update on where the groupbuy stands? i think a lot more people would be motivated to enter if they knew the status
2 people signed up so far, but a few more will next week. This goes to Mar 12, and these are expensive items....so I don't expect to sell 10 in a few days A few dozen PMs, calls and email though!
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      02-19-2012, 05:22 AM   #6
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I've very interested. What is your opinion on the Wavetrac vs. Quaiffe? I'm primarily concerned with autocross performance, which I would say is more leaning towards less lockup than other forms of racing, and should definitely prefer zero effect on decel with the sort of tight turns I deal with.

I tend to want to lean towards the Quaiffe as it is more of a known quantity, but I'm open to opinions. Has anyone done a (close to) back-to-back test?

Quick reaction (on both lockup and release) are definitely important.
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      02-22-2012, 12:24 AM   #7
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Put the power to the ground with a Quaife ATB for a price never seen before!
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      02-25-2012, 11:39 AM   #8
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5 of these have names on them now 2 weeks left to get the best deal ever on a Quaife ATB equipped final drive!
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      03-07-2012, 09:09 PM   #9
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Had to bite the bullet.
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      03-07-2012, 09:19 PM   #10
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I just saw it come over, thanks :-)
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      03-07-2012, 11:07 PM   #11
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This is an amazing deal.
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      03-08-2012, 05:31 PM   #12
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Reminder - the sale ends Monday March 12. Thanks guys, my differential guy loves you all - heh heh!
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