These amazing and clever polyurethane inserts install on both sides of your stock BMW E70/F15 X5 or E71/F16 X6 rear subframe bushings, filling the empty voids in the bushing to reduce bushing deflection, increase bushing rigidity and longevity, improve cornering and improve rear end stability. And with Powerflex's Black Series urethane company, which has a stiffer 95A durometer polyurethane, you'll firm up the stock bushings as much as possible for aggressive street and track driving. Perhaps best of all, they install far easier and in MUCH less time than a full subframe bushing overhaul.
These inserts are specifically designed to work with BMW factory subframe bushing part numbers 33316784940 (33-31-6-784-940) and 33316774556 (33-31-6-774-556), and are guaranteed to fit into the original BMW subframe bushings. If your car has aftermarket subframe bushings, these inserts will most likely not work, as the inserts are molded to match the factory voids perfectly.
If your stock 2007-2018 X5 or 2008-2019 X6 rear subframe bushings are still in good (or new) shape, these Powerflex Bushing Inserts are an ingenious way to protect and improve them! You don't need to remove the bushings from the subframe to install these inserts, making install a breeze.
This is our Aggressive Street/Track Subframe Bushing Insert Kit which uses Powerflex's 95A durometer "Black Series" urethane, which is firmer than the yellow 70A durometer standard "street" compound, making them ideal for aggressive street driving, HPDE, driving schools, or other track driving. These are also available in the softer Yellow compound, which is appropriate for standard street driving.
BMW Fitments:
X5 Series
E70 X5 (07-13) > X5 3.0si
E70 X5 (07-13) > X5 4.8i
E70 X5 (07-13) > X5 xDrive35d
E70 X5 (07-13) > X5 xDrive35i
E70 X5 (07-13) > X5 xDrive50i
X5 Series
F15 X5 (2014-2018) > X5 sDrive35i
F15 X5 (2014-2018) > X5 xDrive35d
F15 X5 (2014-2018) > X5 xDrive35i
F15 X5 (2014-2018) > X5 xDrive50i
X6 Series
E71 X6 (2008-2014) > X6 xDrive35i
E71 X6 (2008-2014) > X6 xDrive50i
X6 Series
F16 X6 (2015-2019) > X6 sDrive35i
F16 X6 (2015-2019) > X6 xDrive35i
F16 X6 (2015-2019) > X6 xDrive50i
