SWAVE & SUMMIT Rear Axle/Torsion Beam Brace for Ford Fiesta Mk8 (ST 1.5 & 1.0 EcoBoost) – Rear Lower Subframe Underbody Chassis Stiffening Crossmember/Tie Bar, Rear Beam Link/Stability Brace – Track-Day Handling & Suspension Upgrade

SWAVE & SUMMIT Rear Underbody Brace for Ford Fiesta Mk8 ST 1.5 and 1.0 EcoBoost

Transform the way your Fiesta Mk8 drives with this SWAVE & SUMMIT rear under-chassis brace. Engineered for fast road and track-day enthusiasts, this rear crossmember reinforcement connects key mounting points at the back of the car to curb flex, sharpen response and give you a more planted, confidence-inspiring feel on every B-road blast.

Why this upgrade

• Purpose-built reinforcement for Ford Fiesta Mk8 1.5 ST and 1.0 EcoBoost models
• Triple-forged monocoque alloy tube that delivers outstanding stiffness with minimal weight
• Clean, subtle look with gloss black end sections for an OEM-plus finish
• Notable improvement to rear-end stability for crisper turn-in and flatter, more predictable cornering
• Heritage from SUMMIT racing equipment seen across stage rally and drift applications
• Suitable for both right-hand drive and left-hand drive vehicles

What you will notice

A tighter, more connected rear axle with better composure mid-corner and on exit. Steering feels more immediate, the car tracks straighter over rougher surfaces and you gain consistent, repeatable handling whether you are commuting, enjoying spirited weekend drives or pushing hard at a track day.

Vehicle compatibility

• Ford Fiesta Mk8 ST 1.5 EcoBoost
• Ford Fiesta Mk8 1.0 EcoBoost
• Compatible with RHD and LHD

Built for performance

Unlike basic hollow tubes, the SWAVE & SUMMIT one-piece forged alloy construction resists flex under load to help maintain geometry. The result is a durable rear brace that supports precise alignment and inspires confidence when driving hard, without adding unnecessary weight.

Tried by us, loved by customers

We have installed this SWAVE & SUMMIT brace on our own cars and customer builds. Feedback has been consistently excellent for improved balance, better front-end bite and a more composed rear, making it a must-have handling mod for the Mk8 platform.

Professional fitting available

We recommend professional installation. Book fitting with MJ Modifications at our Warwickshire workshop. Request a quote at info@mjmodifications.co.uk.

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Add this precision brace to your basket today for a sharper, more confidence-inspiring Fiesta Mk8 drive.