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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > DefiV Diff Lockdown Kit

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      05-22-2013, 01:28 PM   #23
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2007 BMW 335i  [0.00]
Get some Megan toe arms to complete the rear! Stiffer and exact toe settings!

Originally Posted by joec500 View Post
First of all I want to thank Rick for building a super high quality kit and for FFTEC for a quality and quick install, Dave really knows how to turn a wrench.

As many people have seen on the forums, wheelhop has been destroying driveshafts and halfshafts. I actually shattered a halfshaft from wheelhop, so I looked into DSS reenforced units, but I preferred solving the root problem, which was wheel hop caused by our super soft diff bushings creating way too much play in the driveline. I have high hopes that this will save our drivelines from Wheelhop.

I went into FFTEC today, who were able to install the bushings without dropping the subframe. Other shops may request to drop your subframe, but it is not needed.

After a few hours I was on my way, and I noticed immediately how the rear was much more planted. Before at WOT my car would shimmy to one side or another, but after the kit was installed the car just plants and runs solid and straight. The original diff bushings can actually be squeezed by hand, that is how much play there is. Which is terrible for a 400+ WHP car.

Also on the freeway when I downshift, the car no longer shifts to one side before pulling forward, it just sticks and goes.

This kit is essential for any modded N54 car and to save your driveline also this kit did not induce any additional Noise Vibration or Harshness. It's pretty isolated with our subframe bushings.

Also Rick offerred incredible support throughout the process. Here are some pics of the kit and installation.

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      05-22-2013, 01:34 PM   #24
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      04-04-2014, 04:07 PM   #25
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Sorry to bring up an old thread but someone mentioned this to me in another thread and its exactly what i am looking for. Now question is, if I move forward and have to drop everything to install, what other suspension parts should I order with it to replace at the same time, if any? Thanks!
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      04-04-2014, 04:12 PM   #26
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Here is my DIY


I would replace subframe bushings, toe arms, transmission mounts while you're in there.
JB4 G5, WEDGE flash, 455 LPFP, HFS-4 meth kit, BMS OCC, Motiv 750 ST, RB valve, BMS DCI, 3" AR Dps, Custom OC W/ SS lines, ER FMIC, ER CP W/HKS BOV, M3 control arms, M3 guide rods, M3 upper links, M3 front & rear sway-bars, HPA rear toe arms, Wavetrac LSD, HPF Gen 2 exhaust DEFIV kit, KW clubsport, Power-Flex subframe bushings, stoptech rotors, Rogue Tranny Mounts, 1M bumper, M3 CF hood, MORR VS8.2 rims 245/295
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      05-01-2014, 04:38 PM   #27
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These are 10% off if you email them.

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      05-01-2014, 08:31 PM   #28
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