Genuine BMW Rear Crossmember/Subframe Chassis Brace Kit + Bolts – E92 3 Series 2005-2013 & E84 X1 2008-2015 – Rear Axle Carrier Tie Plate Underbody/Underfloor Stiffening Plate – Fits 335i, X1 28i xDrive – OEM 33326777637, 07147203503

BMW Rear Crossmember Stiffening Plate Kit for E92 and E84

Upgrade the back end of your BMW with this Genuine BMW rear crossmember stiffening plate and hardware set. Designed for the E92 3 Series 2005 to 2013 and the E84 X1 2008 to 2015, this factory part restores rigidity to the axle carrier, tightens up the rear structure and delivers that taut, OEM-fresh feel. A superb choice if your original brace is missing, bent or corroded, and a brilliant OEM-plus handling enhancement for fast road and track use.

We have fitted this brace on multiple customer cars at MJ Modifications and the feedback is consistently positive. Sharper response, better composure over bumps and more confidence when pushing on B-roads are the common takeaways, all while retaining factory refinement and zero NVH penalty.

Why this kit

• Genuine BMW part for perfect alignment and fitment
• Reinforces the rear axle carrier and underfloor structure for improved torsional rigidity
• Helps stabilise suspension pick-up points for more consistent geometry under load
• Bolt-on install using existing mounting locations with new BMW fasteners included
• Ideal replacement for a damaged, missing or tired rear crossmember brace

What you get

• Rear crossmember stiffening plate, BMW part number 33326777637
• Genuine BMW bolt kit, part number 07147203503

Vehicle compatibility

• BMW 3 Series Coupe E92 2005 to 2013 including LCI
• BMW X1 E84 2008 to 2015 including xDrive and sDrive variants
• Popular applications include 335i and X1 28i xDrive

Fitting and support

Installs with standard tools following BMW torque specifications. Professional installation recommended for best results.

Prefer a hassle-free fit. Book expert installation with MJ Modifications in Warwickshire. Request a quote at info@mjmodifications.co.uk.

Peace of mind

• Manufacturer: BMW
• Warranty: Two years for UK customers, one year for international customers when a compatible VIN is provided at checkout
• Free compatibility check before dispatch. Add your UK registration or last 7 of VIN at checkout

Proven results

Our customers love the way this genuine brace settles the rear end, reduces flex and gives a more planted feel during hard cornering and acceleration. It is an easy, OEM-grade way to tighten the chassis without introducing noise or harshness.

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