Fathouse Fabrications 2015-2020 Ford Mustang Weld In Roll Rage – 8.50 Spec
2015+ S550 MUSTANG ROLL CAGE
Countless hours spent developing Fathouse Fabrications 2015 to 2020 Ford Mustang S550 roll cage kits to ensure proper fitment and give you a professional fitting cage. Installing a cage in your car is a job that requires patience and skill. With our weld-in cage kit, this job just became a little easier. Years of experience in fitting cages tightly in street cars has resulted in the best fitting cage kit you can buy! We CNC cut all cage kits, this ensures precise fitment every time. When you purchase a FatFab cage kit you know you are buying quality and using a product you can be proud of.
CAGE KIT FEATURES.
- Best fitting cage kit on the market
- Made in the USA!
- Comes ready to prep for welding and install
- Built to satisfy 8.50 ET specs
- 1/8″ steel floor plates included, cold roll so there is no scale to grind off
- 1 5/8″ Docol tubing, pre-bent and notched
- 1 1/4″ Docol D Bars, pre-notched
- Steering column mounts
- Dash trim plates to finish out your cage and keep the dash looking clean
- Two options for seat back brace, one for stock seats and one for racing seats
We offer bolt-in seat mounts for Kirkey Racing Seats and Other Fixed Back Racing seats. You can purchase a bolt-on Parachute Mount and related components HERE Optional 7/8″ gussets are available and we suggest adding them for extra strength. *Your windshield will need to be removed for installation. Notching of the dash will be required to fit with the new cage bars along with slight trimming of the rear decklid and rear side panels. Your carpet will also need to be trimmed to fit with the new cage. *Check out YouTube channel for installation videos
ESTIMATED S550 ROLL CAGE BUILD TIME IS 2 WEEKS.
We’ve got your back!
Function Factory Performance takes “customer service” very personally. We understand that finding the right parts can be overwhelming. Education and awareness are the principles that keep us ahead of the curve. Let us make this experience simple, easy, and awesome, so without hesitation give us a call at (480) 576-8606, feel free to direct message on our live chat or CLICK HERE to contact us via email.
Make sure to follow us on Instagram: @FFPerformanceAZ and Youtube.
Frequently Asked Questions
For made-to-order or specialty items (like carbon fiber parts or custom builds), the turnaround can take up to 8 weeks — perfection takes time.
Either way, we’ll keep you updated so you know exactly when your parts are leaving the pit lane.
If your order ships via freight, you’ll get a separate email with a direct link to the carrier’s tracking page — easy and stress-free.
If your shipment is lost, just email or call us — we’ll help track it down and guide you through the next steps to make it right.
Follow us on Instagram, YouTube, and Facebook, and most importantly, drop us a review on Google or Yelp to let others know about your experience.
Your feedback helps us grow, create more content, and keep bringing performance-driven parts to the community.
1st Class Service
Call
805-267-9762
or email Support@FFPerformance.coWe know car parts can be a maze — good thing we brought the map. Our team’s here to keep things smooth, simple, and maybe even a little fun.
Don’t forget to follow @FFPerformanceAZ on Instagram and YouTube.
1
Customer Support Specialist
Have a question about parts or your order? We're open Monday to Friday, 9:00 AM to 5:00 PM PST.
Your Product Is Guaranteed
Our #1 responsibility is to deliver your parts as quickly as possible.
Race Proven Knowledge.
The crew at FFP is built from real racers and car enthusiast.
Payments Verified
We verify every transaction to prevent fraud. Know that your information is safe.















Reviews
There are no reviews yet