FunctionWerks
FunctionWerks offers premium automotive parts and accessories for enthusiasts and professionals. Specializing in high-performance components, custom upgrades, and expert advice, we provide everything needed to enhance and personalize your vehicle's performance and style.
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Catalytic Converter Direct Fit
Catalytic Converter Universal
Catback
Exhaust, Mufflers & Tips
Headers & Manifolds
Muffler
Oxygen Sensors
Programmers & Chips
Tail Pipes
Tips
Turbo Back
X Pipes
Y Pipes
Wheels
Wheels - Cast
Wheels - Forged
Aluminum Tubing
Axle Back
Body Armor & Protection
Body Armor & Rock Rails
Brackets
Clamps
Connecting Pipes
Downpipe Back
Downpipes
DPF Back
Exhaust Adapters
Exhaust Hardware
Exhaust Valve Controllers
Fabrication
H Pipes
Light Mounts
Lights
Muffler Delete Pipes
Resonators
Smoke Stacks
Steel Tubing
Lug Nuts
Security Locks
Tailgate Locks
Truck Bed Accessories
Wheel Accessories
Wheel and Tire Accessories
Wheel Bolts
Bushing Sleeves
Clutch Discs
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Clutch Kits - Multi
Clutch Kits - Single
Clutch Lines
Featured products
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Advan 73mm Flat Centercap - Hyper Black
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Advan 73mm Full Flat Centercap - Hyper Black
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Advan 73mm Full Flat Centercap - Blue Anodized
USD 45.33
Advan 73mm Middle Centercap - Black
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AEM X-Series 0-160 MPH Black Bezel w/ Black Face GPS Speedom
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AEM RTD Exhaust Gas Temperature Sensor Kit
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AEM Power Harness for 30-0300 X-Series Wideband Gauge
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AEM EV 8 Channel CAN Driven Slave Type Power Distribution Un
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Akrapovic 2020 BMW X5M (F95)/X6M (F96) Rear Carbon Fiber Dif
USD 1,830.45
Akrapovic 2019 Toyota Supra (A90) w/o OPF/GPF Evolution Link
USD 1,645.60
Akrapovic 07-14 MINI Cooper S (R56) / Cooper S Cabrio (R57)
USD 1,716.49
Akrapovic 2018+ BMW M5 (F90) Sound Kit (Excl M5 CS)
USD 758.87
Akrapovic 2020+ BMW M8 (F91/F92/F93) Sound Kit
USD 1,203.62
Akrapovic 2020+ Audi RS Q8 (4M) Sound Kit
USD 662.97
Akrapovic 2020+ BMW X5M (F95)/X6M (F96) Sound Kit
USD 593.47
Akrapovic 16-17 Porsche 911 Carrera S/4/4S/GTS (991.2) Slip-
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Akrapovic 2018 Porsche 911 GT3 (991.2) Slip-On Race Line (Ti
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Akrapovic 14-17 BMW M3/M4 (F80/F82) Tail Pipe Set (Carbon)
USD 2,072.29
Akrapovic 07-13 BMW M3 (E90/E92/E93) Tail Pipe Set (Carbon)
USD 2,082.02
Akrapovic 17-18 Porsche Panamera Turbo Tail Pipe Set (Carbon
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Akrapovic 11-12 BMW 1 Series M Coupe (E82) Tail Pipe Set (Ca
USD 2,002.80
Akrapovic 2020+ BMW X3 M/X3 M Competition (F97) Tail Pipe Se
USD 2,208.50
Akrapovic 19-20 BMW X4 M/X4 M Competition (F98) Tail Pipe Se
USD 2,208.50