What is the main benefit of using void filler bushings?

Void filler bushings are designed to fill the empty spaces within your vehicle's original subframe bushings. This helps to reduce unwanted flex and movement in the subframe, leading to a more direct and responsive feel from the suspension, especially during acceleration and cornering.

What makes SuperPro polyurethane bushings different from rubber?

SuperPro uses a proprietary engineering-grade polyurethane that is more durable than rubber. It resists degradation from oils, water, and extreme temperatures, and it maintains its shape and performance characteristics longer, offering a quieter and more reliable bushing solution.

Does this bushing set come with all the necessary hardware for installation?

This set includes the void filler insert bushings themselves. Installation typically involves removing the original subframe bushings and inserting these void fillers. Refer to the manufacturer's installation instructions for a complete list of required tools and any additional hardware that may be needed.

SuperPro Rear Subframe Bushing Set SPF3944K

Name: SuperPro 2011 BMW 1 Series M Base Rear Subframe Void Filler Insert Bushing Set - Bushings
Brand: Superpro
Price: 53.99 USD
Availability: InStock

SuperPro 2011 BMW 1 Series M Base Rear Subframe Void Filler Insert Bushing Set - Bushings

$53.99

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

SuperPro rear subframe void filler bushing set. Made from proprietary polyurethane for improved handling and longer life.

Key Features

Fits a wide range of BMW models including the 2011 BMW 1 Series M, 2008-2013 BMW 128i, and 2008-2015 BMW 335i.
Fills voids in the factory subframe bushings to reduce unwanted movement.
Made from SuperPro's proprietary engineering-grade polyurethane formula.
Unaffected by extreme temperatures, oils, water, or coolant.
Provides improved handling and steering geometry.
Designed, engineered, and manufactured in Australia.

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Will this fit your vehicle?

Product Details

SuperPro is known for making well-built suspension components with over 40 years of experience, and their SPF3944K rear subframe void filler insert bushing set is a great example of that expertise. If you're looking to firm up the rear end of your BMW, these inserts are designed to fill the voids in the factory subframe bushings. This helps reduce unwanted movement and flex, which can lead to a more connected feel when you're driving, especially during cornering or under acceleration.

These bushings are made from SuperPro's own engineering-grade polyurethane formula. This material is chosen because it holds up better than rubber to things like oil, water, and extreme temperatures, and it won't break down over time. By filling those empty spaces in the original bushings, you get improved steering geometry and a more solid feel from the rear suspension. It's a popular way to get a more direct response from your car's handling without the harshness you might expect from solid metal inserts.

This set is designed to fit a wide range of BMW models, including popular ones like the 2011 BMW 1 Series M, the 2008-2013 BMW 128i and 135i, and many others in the 3 Series lineup. They are engineered and manufactured in Australia, where they're tested to handle tough conditions.