Ultra Racing Middle Lower Brace - 6 Point • ML6-3719

Ultra Racing 6-point middle lower chassis brace for Mazda MX-5 MK4 / ND manual-transmission models listed in the compatibility table.

The Ultra Racing ML6-3719 is a middle lower bar / middle member brace designed as an aftermarket chassis reinforcement upgrade for the fourth-generation Mazda MX-5.

Mounted beneath the centre section of the vehicle, this six-point brace links multiple lower chassis mounting points to help reduce unwanted chassis flex. Reinforcing this area can help the suspension work more consistently and improve overall chassis response during cornering, braking and changes in direction.

Product details:

• Brand: Ultra Racing
• Part number: ML6-3719
• Product type: Middle Lower Bar / Middle Member Brace
• Position: Centre / middle lower chassis
• Brace specification: 6 Point
• Construction: One-piece welded steel
• Finish: Ultra Racing white powder coat
• Installation method: Bolt-on using OEM mounting points
• Approximate dimensions: 110cm x 85cm x 3cm
• Approximate weight: 2.7kg
• Quantity required per vehicle: 1
• Quantity supplied: 1 middle lower brace
• Mounting hardware: Supplied as required by Ultra Racing

Common reasons for fitting:

• Reduce unwanted flex through the centre lower chassis structure
• Reinforce multiple lower chassis and suspension mounting areas
• Help improve suspension consistency under cornering loads
• Improve chassis response during enthusiastic road or track driving
• Complement front and rear chassis reinforcement upgrades

Fitment advice:

Manufacturer application data confirms ML6-3719 for manual-transmission Mazda MX-5 ND applications. Ultra Racing Malaysia lists the 2.0-litre 2WD manual model, while Ultra Racing Japan separately confirms the ND5RC 1.5-litre manual. The brace is designed around the standard underbody and mounting arrangement. For imported, modified or previously repaired cars, matching the mounting arrangement on the vehicle before installation is recommended.

Other items to consider purchasing:

• Ultra Racing front strut brace
• Ultra Racing front lower / member brace
• Ultra Racing rear lower / member brace
• Ultra Racing anti-roll bars
• Replacement suspension or chassis fasteners where existing hardware shows corrosion or damage

Useful tools / consumables:

• Socket and ratchet set
• Torque wrench
• Suitable vehicle lift or axle stands
• Penetrating fluid where existing underbody fasteners are corroded

Difficulty guide: Intermediate DIY / workshop installation. The vehicle must be safely raised to provide access to the centre underside and all six mounting locations.

Why Ultra Racing?

Ultra Racing specialises in aftermarket chassis and handling upgrades. Its chassis braces use rigid one-piece welded construction designed to reinforce key areas of the vehicle structure and reduce unwanted movement between mounting points.

What's in the box:

• 1 x Ultra Racing ML6-3719 middle lower chassis brace
• Required mounting hardware as supplied by Ultra Racing

Installation notes:

Ultra Racing specifies ML6-3719 as a bolt-on installation using OEM mounting points, with no cutting or welding required. The vehicle will need to be safely raised for access. Position the brace correctly and check clearance around the exhaust, transmission and surrounding underbody components before final tightening. Reassemble and tighten all mounting hardware to the appropriate vehicle or manufacturer specification.