Ultra Racing Under Body Brace Kit Æ’?? BMW F2x 1 series and 2 Series. INC M140/M135i , M240/M235i

Chassis Reinforcement Brace for BMW F20 F21 F22 Platforms

Unlock sharper turn in, tighter body control and a more planted feel on your BMW hatch or coupe with this centre floor bracing kit. Designed to increase torsional rigidity and reduce chassis flex, this upgrade delivers confidence on fast road and track while retaining everyday comfort.

Fully bolt-on with supplied hardware, it mounts to factory points with no cutting or drilling. The brace sits slightly lower to work neatly with performance exhausts, making it a great choice if you are running a larger mid pipe or aftermarket system.

Why enthusiasts choose this brace

• Improves steering precision and stability through corners
• Reduces flex for a more connected, taut driving feel
• Direct-fit installation with included fixings
• Exhaust-friendly profile for upgraded systems
• Proven on our own builds and highly rated by our customers

Part number

ULTRA-RL-3885

What’s in the box

• ULTRA-RL-3885 underfloor brace
• 33326793651 pushrod left
• 33326793652 pushrod right
• 33306861221 Torx bolt x2
• 51118174185 expanding plastic rivet x2
• 07147201307 white plastic parts x2

Vehicle fitment

• BMW 1 Series F20 and F21, including M135i 2012 onward and M140i 2015 onward
• BMW 2 Series F22, all variants except cabriolet

Fitting service

Professional installation available at MJ Modifications, Warwickshire. Request a quote at info@mjmodifications.co.uk.

Buy with confidence

We have fitted this brace on customer cars and our own projects, and the feedback is consistently positive. Drivers report crisper response, improved confidence over uneven roads and better mid-corner stability, especially on cars with uprated suspension and tyres.

Keywords for search: BMW F20 lower brace, F21 chassis brace, F22 centre floor brace, M135i handling upgrade, M140i rigidity bar, M235i underfloor brace, M240i subframe brace, undercarriage stiffener, belly brace, floor reinforcement bar, cross brace, stability brace, suspension brace, cornering upgrade, track day chassis upgrade.