BMW Z4 Half Cage Kit | DIY Weld-In Roll Cage for Track & Motorsport (Material: Standard CDS)
🔧 BMW Z4 DIY Half Cage Kit – Motorsport-Ready Performance & Safety!
Upgrade your BMW Z4 Coupe with our DIY Half Cage Kit, designed to reinforce chassis strength, enhance safety, and optimise track performance. Whether you’re a serious racer or a weekend track enthusiast, this precision-crafted roll cage delivers superior reinforcement without unnecessary weight.
To install this cage, the rear bulkhead must be fully removed. This modification allows for a secure and seamless fit, ensuring optimal rigidity for track applications.
🔹 High-Performance Design & Construction
Our BMW Z4 Half Cage Kit is engineered for motorsport performance, incorporating key reinforcements to improve both chassis stiffness and driver protection.
✔ X-Centre & X-Rear Bracing – Strengthens the chassis for enhanced track handling
✔ Harness Bar Hoop – Positioned behind the centre cross for optimal seat clearance
✔ B-Pillar Gussets & Mounts – Ensures a rigid and professional installation
💡 Designed for BMW Z4 Coupe owners looking for the ultimate track-ready roll cage solution!
🔹 Choose Your Material – T45 or CDS Steel
We offer two steel options, allowing you to customise your half cage to match your performance needs.
📌 T45 Steel – Motorsport-Grade, Lightweight & Strong
✔ Aerospace-grade BS4-T45 steel with superior tensile strength
✔ Curved gussets for a sleek, high-performance look
✔ Lighter than CDS steel, making it the ideal choice for serious racers
📌 Standard CDS (E355+N) – Durable & Cost-Effective
✔ Cold Drawn Seamless (CDS) tubing for maximum durability
✔ Includes traditional straight taco gussets with precision-cut holes
✔ Reliable and affordable option for track day enthusiasts
💡 T45 is the best choice for weight savings & extreme durability, while CDS provides excellent reinforcement at a lower cost.
🔹 Precision Fit & DIY Installation
Our BMW Z4 DIY Half Cage Kit is CNC-notched, pre-marked, and labeled, ensuring perfect alignment and hassle-free assembly.
🔧 Installation Overview:
1️⃣ Completely remove the rear bulkhead (required for proper fitment)
2️⃣ Position & tack weld the mounting plates in place
3️⃣ Assemble & align the X-bracing and harness bar
4️⃣ Ensure clearance and weld all structural points securely
5️⃣ Perform final checks to confirm proper fitment and reinforcement
📌 This is a weld-in kit designed for professional fabricators & experienced DIYers. Advanced welding and fabrication skills are required.
🔹 Why Choose JP Cages for Your BMW Z4 Roll Cage?
When it comes to motorsport-grade roll cages, JP Cages leads the way in precision engineering and structural integrity.
✔ Designed for Track & Race Performance – Engineered for maximum safety
✔ Precision CNC Notching – Ensures seamless fitment & structural strength
✔ Customisable Steel Options – Available in T45 & CDS (E355+N) Tubing
✔ Trusted by Motorsport Enthusiasts – Built by JP Cages, the UK’s leading roll cage specialists
✔ Fast Worldwide Shipping – Secure delivery to track builders worldwide
💡 For complete safety compliance, our roll cages adhere to MSUK Blue Book Regulations for club-level motorsport.
🔹 Related Products & Internal Links
✔ Browse our full BMW Roll Cage Collection to find the perfect safety upgrade for your build.
🔹 Frequently Asked Questions (FAQs)
❓ Does this cage fit all BMW Z4 models?
✅ This kit is specifically designed for BMW Z4 Coupe models. For compatibility with convertibles, please contact us before ordering.
❓ What is the difference between T45 and CDS steel?
✅ T45 steel
