034 Motorsport Billet Aluminium Rear Subframe Mount Insert Kit - E8X/E9X

Sharpen your BMW’s rear end response with a simple, proven chassis upgrade

Give your E8X 1 Series or E9X 3 Series the rear end control it deserves with this precision billet alloy rear axle carrier insert kit from 034Motorsport. The factory rubber bushes have large voids that allow the cradle to move under load, which can make the back of the car feel floaty and imprecise in fast corners and during hard acceleration. These CNC-machined inserts occupy those voids, tightening up the sub-frame to chassis interface for a more planted, confidence-inspiring drive without turning your car into a race-only setup.

Why enthusiasts choose this upgrade

• Noticeably firmer rear axle location for cleaner, more predictable handling
• Maintains correct suspension geometry in cornering and over bumps
• Improves gear change feel thanks to reduced drivetrain wind-up
• Helps the car put power down more cleanly during launches and on corner exit
• Minimal change in cabin refinement with virtually no extra noise or vibration
• Ideal for fast road and track day use while remaining daily-driver friendly

Engineered quality you can trust

• T6-6061 billet aluminium construction for strength and long-term durability
• In-house CNC machining for a perfect, interference-free fit
• Clear anodised finish to resist corrosion and wear
• Works with the original rubber bushes, no press required
• Simple, fully reversible, bolt-in installation

We have fitted this kit on our own cars and for many customers, and the feedback is consistently the same. Tighter rear end, better grip, more confidence, and a more connected BMW driving experience.

What’s included

• Front upper rear axle carrier inserts, pair
• Front lower rear axle carrier inserts, pair
• Rear upper rear axle carrier inserts, pair
• Rear lower rear axle carrier inserts, pair

Vehicle compatibility

BMW 1 Series E8X:

• E81 1 Series, 02/2006 - 12/2011
• E87 1 Series, 02/2003 - 02/2007
• E87 1 Series LCI, 01/2006 - 06/2011
• E88 1 Series Convertible, 11/2006 - 10/2013
• E82 1 Series Coupe, 11/2006 - 10/2013

BMW 3 Series E9X:

• E90 3 Series Saloon, 02/2004 - 09/2008
• E90 3 Series LCI Saloon, 07/2007 - 02/2012
• E91 3 Series Touring, 02/2004 - 08/2008
• E91 3 Series LCI Touring, 07/2007 - 05/2012
• E92 3 Series Coupe, 05/2005 - 02/2010
• E92 3 Series LCI Coupe, 11/2008 - 06/2013
• E93 3 Series Convertible, 09/2005 - 02/2010
• E93 3 Series LCI Convertible, 11/2008 - 10/2013

Installation

Direct-fit, reversible install that can be completed with basic tools. A downloadable guide is available. For professional fitting, book in with MJ Modifications in Warwickshire. Email info@mjmodifications.co.uk for a quote.

Common search terms

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