Porsche 987 Weld-In Cage Kit | FIA-Style Roll Cage for Cayman & Boxster (Fitting: Yes, Material: LIGHTWEIGHT BS4-T45 - Unapproved for competition)
Porsche 987 Weld-In Cage Kit | FIA-Style Roll Cage for Cayman & Boxster
Enhance the safety, rigidity, and performance of your Porsche 987 Cayman/Boxster with our precision-engineered DIY weld-in roll cage kit. Designed for track day enthusiasts, club racers, and competitive motorsport applications, this FIA-style roll cage provides a rigid, race-ready structure to meet the demands of high-performance driving.
This DIY kit is CNC-notched, marked, and fully labelled, allowing for precise fitment and assembly by those with welding and fabrication expertise. Unlike bolt-in cages, this weld-in roll cage is permanently secured to the chassis for maximum safety and chassis reinforcement.
🚗 Designed for professional race teams and experienced fabricators building a Porsche 987 track car!
🔹 Choose Your Material – Standard CDS (E355+N) or BS4-T45 Steel
Our Porsche 987 DIY Weld-In Roll Cage Kit is available in two high-strength material options to match your performance and budget needs:
📌 Standard CDS (E355+N) – Durable & Cost-Effective
✔ Commonly used in track and club racing applications
✔ Offers excellent structural integrity and impact resistance
✔ Heavier than T45 but provides reliable protection at an affordable price
📌 BS4-T45 – Lightweight & Motorsport-Grade
✔ Aerospace-grade steel with higher tensile strength than E355+N
✔ Allows for thinner-walled tubing, reducing weight while maintaining maximum strength
✔ The preferred choice for competitive motorsport and high-performance builds
💡 Both materials offer outstanding protection, but T45 is the superior option for those looking to save weight without sacrificing strength.
🔹 What’s Included in the Porsche 987 Weld-In Roll Cage Kit?
This comprehensive roll cage kit includes everything needed for a complete installation, ensuring structural reinforcement while maintaining proper clearances for seat fitment and interior components.
✔ Main Roll Bar (MRB) – Central structural component
✔ X-Bracing Components – D1, D2, D3 for added chassis rigidity
✔ Left & Right Backstays – LB, RB for rear chassis reinforcement
✔ Harness Bars – LH, RH for racing harness compatibility
✔ Front A Bars – RAB, LAB to connect the front structure
✔ Roof Bar – RFB for upper cage stability
✔ Roof Diagonal – RD1 for additional roll-over protection
✔ Double Door Bars – LLD, RLD, LUD, RUD for side impact protection
✔ Mounting Boxes & Plates – Pre-cut and ready for positioning
📌 Every component is CNC-notched, pre-marked, and labelled to ensure a precise assembly process.
🔧 This kit is designed for professional fabrication and welding—installation should be performed by an experienced motorsport technician.
🔹 Step-by-Step Installation Guide
💡 Before starting, reference the images provided to determine mounting positions and body modifications required.
1️⃣ Preparation
✅ Remove any unnecessary body components to create clearance for the cage.
✅ Clean all paint from the chassis where mounting points will be welded.
2️⃣ Main Roll Bar & Front Section Fitment
✅ Remove the factory box section & mounts from the chassis.
✅ Tack the mounts directly onto the chassis to establish a solid base.
✅ Position the Main Roll Bar (MRB), tacking it into place with adjustability for lean angle.
3️⃣ Front A Bars & Door Bar Alignment
✅ Fit the LAB (Left A Bar) and LLD (Lower Left Doorbar) to determine landing points.
✅ Mark and tack front mounts into position before mirroring the setup on the driver’s side.
✅ Install LAB/RAB (Left & Right A Bars) and door bars, ensuring proper alignment and clearance.
4️⃣ Roof Bar & Diagonal Installation
✅ Fit the roof bar (RFB) and roof diagonal (RD1) to reinforce the
