WELCOME TO FUNCTION FACTORY PERFORMANCE
Factory Proven. Factory Backed. — Premium performance parts & expert installation since 2017
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Function Factory Performance 2 Hole Forged Carbon Fiber License Plate Frame
Original price was: $89.00.$72.09Current price is: $72.09.Contact Us for More Information
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Function Factory Performance NX2 T-Shirt
Original price was: $39.00.$31.59Current price is: $31.59.Available
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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MBRP 2015-2016 Dodge Charger 5.7L HEMI Armor Lite Cat-Back Exhaust
$794.99Available
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NOVITEC SWITCHTRONIC Exhaust Controller for Ferrari Purosangue
Original price was: $1,332.00.$1,225.44Current price is: $1,225.44.Available
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NOVITEC 10pc Titanium Wheel-Bolt Set for Ferrari Purosangue
Original price was: $1,680.00.$1,545.60Current price is: $1,545.60.Available
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XDI 2016-2018 Ford Focus RS HPFP35 & 2000cc Injector Bundle
$1,999.00Backorderd - Call or Email For ETA
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XDI 2018-2023 Ford Mustang 5.0 High Pressure Fuel Pump HPFP45
$2,499.00Backorderd - Call or Email For ETA
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XDI 2018-2023 Ford Mustang 5.0 High Pressure Fuel Pump EVO
$1,599.00Backorderd - Call or Email For ETA
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
Install Feature
FFP Reimagines the McLaren 750S: A NOVITEC Collaboration
Function Factory Performance transforms a McLaren 750S with NOVITEC upgrades.
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FFP Does Monterey Car Week 2025
Supercars, spectacle, and sleepless nights at the world's most prestigious event.
Guide
Ultimate Guide To Modifying Your EcoBoost Mustang
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





























