WELCOME TO FUNCTION FACTORY PERFORMANCE
Factory Proven. Factory Backed. — Premium performance parts & expert installation since 2017
FIND PARTS FOR YOUR VEHICLE
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CHOOSE YOUR PLATFORM
Premium performance parts for the world's most exciting vehicles
BEST SELLERS
Our most popular performance parts — proven by thousands of enthusiasts
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MGP 2015-2023 Ford Mustang GT Red Caliper Covers GT Logo Front & Rear
$299.99Contact Us for More Information
FACTORY PROVEN. FACTORY BACKED.
Our crew of passionate car enthusiasts, led by owner and founder Charles Siritho, carefully hand-selects our premier products. We rigorously test performance parts on our Ford Mustangs, McLarens, and customer vehicles.
"We built FFP to be the shop we always wished existed — expert knowledge, premium parts, and no BS."
NEW ARRIVALS
Fresh drops — just landed in our warehouse
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Hawk Performance 2015-2020 Ford Mustang GT / Ecoboost Performance Pack Talon Slotted and Drilled Front Brake Rotors (Set)
$493.59Contact Us for More Information
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Roush Performance 2018-2019 Ford Mustang 5.0L-V8 Performance Pac Level 2 (E.O. #D-418-34 / 50 STATE LEGAL 2018-2020)
$1,377.99Contact Us for More Information
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Roush Performance 2015-2020 Ford Mustang w/o MagneRide Triple Adjustable Coilover Suspension Kit
$3,019.99Contact Us for More Information
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Roush Performance 2018-2023 Ford Mustang GT 5.0L V8 Active Exhaust Kit (Without Active Exhaust)
$3,141.99Contact Us for More Information
Certified Specialist
THORNEY MOTORSPORT OF LOS ANGELES
Factory-trained Thorney Motorsport independent specialist. Expert service, genuine parts, and performance upgrades for all McLaren models.
McLAREN EXTENDED WARRANTY COVERAGE
Protect your investment with comprehensive coverage from Thorney Motorsport — the UK's leading independent McLaren specialists.
FROM THE BLOG
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Everything you need to build the perfect EcoBoost Mustang.
Explore All Articles
Browse our complete collection of build features and guides.
LET'S TALK PERFORMANCE
Questions about parts? Need install advice? Our team of enthusiasts is here to help you build the perfect setup.
805-267-9762