Powerflex Road Series Rear Subframe Front Bush Insert – BMW F20 | F21 1 Series | F22 | F23 2 Series | F30 3 Series | F32 | F33 | F36 4 Series S-AMG (W222) even more on a vehicle

even more on a vehicle with higher flowing cats

it provides drive to both wheels without the handling issues that traditional clutch type diffs create (there is no tendency to push/understeer with a Wavetrac)

• High performance compound

Whilst not required

It is well known that the Primary cats are a major restriction point on the E9X M3

Powerflex Road Series Rear Subframe Front Bush Insert – BMW F20 | F21 1 Series | F22 | F23 2 Series | F30 3 Series | F32 | F33 | F36 4 Series S-AMG (W222) even more on a vehiclePrices shown are per bush. 2 bushes are required This is a polyurethane insert that fits into and fills the voids in the original bush to reduce subframe movement. OEM Part Number: 33316792509 Suitable for: M135i M140i M235i M240i 335i 340i 435i 440i