Powerflex Upgraded Polyurethane Suspension Bushings for BMW F32 X-Drive 4-Series Models.
Over time, OEM rubber bushings wear from constant movement, heat, and exposure to road debris. This wear and tear can lead to increased play in the suspension components, affecting handling performance and ride quality. Symptoms of worn bushings include increased body roll during cornering, excessive vibration and noise over bumps, and less precise steering feel.
Powerflex bushings not only boast a Lifetime Warranty, but they are also made from polyurethane, which has improved performance and durability qualities over OEM rubber. Over time, polyurethane is less susceptible to the wear and tear of rubber bushings and is resistant to abrasion, tearing, and degradation from oil, grease, and other chemicals encountered on the road.
Benefits of upgraded bushings include:
Increased Tire Life
Decreased deflection
Improved responsiveness
Reduced Braking Distances
Improved Performance
Increased Safety
Notes:
PFR5-1920 and PFR5-1921 are inserts to be used with the original bushes
PFR5-420 and PFR5-422 are complete replacements for the original bushes
PFR5-1220 is an option part to raise the front of the rear subframe by 9mm providing the same anti-squat characteristic during acceleration as featured on M model vehicles and is recommended to be used with PFR5-422P
PFF5-4020 only fits the cars with the N55, B58 and S55.
PFF5-4632 fits all manual cars before November 2014