WELCOME TO FUNCTION FACTORY PERFORMANCE
Factory Proven. Factory Backed. — Premium performance parts & expert installation since 2017
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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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Diode Dynamics 2015-2022 Ford Mustang Smoked LED Side Markers
$99.95Contact 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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AWE 2020+ Toyota GR Supra A90 Track-to-Touring Resonated Conversion Kit
$738.16Backorderd - Call or Email For ETA
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AWE 2020+ Toyota GR Supra A90 Touring-to-Track Non-Resonated Conversion Kit
$1,015.53Backorderd - Call or Email For ETA
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AWE 2020+ Toyota GR Supra A90 Touring-to-Track Conversion Kit
$921.58Backorderd - Call or Email For ETA
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AWE 2020+ Toyota GR Supra A90 Touring Edition Resonated Cat-Back Exhaust
$2,214.47Backorderd - Call or Email For ETA
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AWE 2020+ Toyota GR Supra A90 Touring Edition Non-Resonated Cat-Back Exhaust
$2,031.05Backorderd - Call or Email For ETA
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AWE 2020+ Toyota GR Supra A90 Track Edition Resonated Cat-Back Exhaust
$1,753.69Backorderd - Call or Email For ETA
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Cervinis 2015-2017 Ford Mustang C-Series Upper Grille
$352.00Contact Us for More Information
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Borla Exhaust 2015-2023 Ford Mustang EcoBoost ATAK Cat-Back Exhaust
$1,499.99Available
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FFP 2015-2023 Ford Mustang EcoBoost Complete Port Injection E85 Fuel Kit
$1,499.00Contact Us for More Information
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Anderson Composites 2015-2017 Ford Mustang GT350 Style Fiberglass Front Bumper With Front Lip
$899.10Contact 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.
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Anderson Composites 2020-2025 Chevrolet Corvette Stingray/Z06 C8 Dry Carbon Fiber Roof Scoop
$2,429.10Contact Us for More Information
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EOS 2014-2019 Chevrolet Corvette C7 Carbon Fiber Track Package Rear Bumper Finned Diffuser
$1,899.98Contact Us for More Information
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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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