Fathouse Performance S550 Mustang Weld-In Roll Cage Kit | 8.50 Spec (FP-S550-RCK) - 2015-2023 Ford Mustang

When you’re pushing your S550 into serious ET territory, safety and chassis confidence aren’t optional. The Fathouse Performance 8.50 Spec Weld-In Roll Cage Kit is built to help your Mustang meet NHRA safety requirements while adding the rigidity you want for high-horsepower drag and track setups. This is one of the best-fitting S550 cage kits on the market, designed for clean install geometry and proper bar placement.

Constructed from ultra-strong Docol R8 tubing, the kit ships pre-bent and notched so it’s ready for final prep, fitting, and welding. You get 1-5/8" Docol main tubing, 1-1/4" Docol D-bars, plus 1/8" steel floor plates to anchor everything correctly. No step-by-step instructions are included, so professional installation is strongly recommended to ensure correct fitment and full compliance.

Features

• Built to satisfy NHRA 8.50 ET specs
• Best-fitting weld-in cage kit for S550 Mustangs
• Made from high-strength Docol R8
• Ships pre-bent and notched for easier welding prep and install
• Includes 1/8" steel floor plates
• 1-5/8" Docol main tubing
• 1-1/4" Docol D-bars
• Made in the USA

Fitment

- 2015 Ford Mustang (S550)
- 2016 Ford Mustang (S550)
- 2017 Ford Mustang (S550)
- 2018 Ford Mustang (S550)
- 2019 Ford Mustang (S550)
- 2020 Ford Mustang (S550)
- 2021 Ford Mustang (S550)
- 2022 Ford Mustang (S550)
- 2023 Ford Mustang (S550)

Installation Notes

• No step-by-step instructions are provided with this kit.
• Professional installation is highly recommended to ensure safety and NHRA compliance.

CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov