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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Go Fast Bits 2015-2021 Ford Mustang Ecoboost Diverter Valve DV+
$153.90Backorderd - Call or Email For ETA
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EOS 2020-2024 Chevrolet Corvette C8 Black Side Intake Mesh Inserts
$59.98Contact Us for More Information
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EOS 2020-2024 Chevrolet Corvette C8 5VM Carbon Flash Side Skirts
$599.98Backorderd - Call or Email For ETA
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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Anderson Composites 2020-2022 Ford Mustang Shelby GT500 Carbon Fiber Sider Rocker Panel Splitter Extensions
$809.10Contact Us for More Information
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Anderson Composites 2020-2022 Ford Mustang Shelby GT500 Carbon Fiber Side Rocker Panel Splitters
$1,439.10Contact 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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EOS 1997-2004 Corvette C5 Hatchback Rear Roof Wing Deck Carbon Fiber Lid Spoiler
$319.98Backorderd - Call or Email For ETA
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EOS 2020-2024 Chevrolet Corvette C8 Coupe / Z06 Models Carbon Fiber X-Brace
$799.98Backorderd - Call or Email For ETA
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.
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