SpeedCircuit
SpeedCircuit focuses on automotive performance and tuning of turbocharged imports. Founded in 2006, SpeedCircuit has been dedicated to perfecting the science of speed.
SpeedCircuit
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Mitsubishi EVO X
Mitsubishi EVO X Brakes
Exomotive Exocet
Mazda Protege
Mitsubishi EVO X Cooling
Mitsubishi EVO X Tuning
Mitsubishi EVO X Exhaust
Mitsubishi EVO X Exterior
Mitsubishi EVO X Engine Components
Mitsubishi EVO X Fuel
Mitsubishi EVO X Intakes
Mitsubishi EVO X Intercoolers & Piping
Mitsubishi EVO X Interior
Mitsubishi EVO X Staged Upgrades
Mitsubishi EVO X Suspension
Mitsubishi EVO X Drivetrain
Mitsubishi EVO X Turbos & Accessories
Mitsubishi EVO X Wheels
Mitsubishi EVO X Engine Accessories
Mitsubishi EVO X Valvetrain
Mitsubishi EVO X Engines & Heads
Mitsubishi EVO X Heat Shields
Mitsubishi EVO X Rotating Assembly
Mazda Protege Brakes
Mazda Protege Drivetrain
Mazda Protege Cooling
Mazda Protege Bolt-ons & Manifolds
Mazda Protege Engine Management
Mazda Protege Exhaust
Mazda Protege Fuel
Mazda Protege Interior
Mazda Protege Suspension
Mazda Protege Turbos & Accessories
Mazda Protege Engine Components
Universal
Air Filters
Fuel Supply
Gauge Mounting
Gauges
Gift Certificates
Miscellaneous
Electronics
Engine Components
Oils & Fluids
Turbo Accessories
Turbochargers
Vacuum Routing
Wastegates

Water Pump Gasket
USD 9.99

Exhaust Manifold Gasket for Mazda Protege FS Engine
USD 13.99

King Mazda Thrust Washer Set for FS Engine
USD 22.8

Supertech Valve Seals for Mazda Protege FS 2.0L
USD 35.99

KING +.25mm ROD BEARING SET FOR MAZDA PROTEGE FS ENGINE
USD 36.49

King STD Size Rod Bearing Set For Mazda Protege FS Engine
USD 45.75

KING +.25MM MAIN BEARING SET FOR MAZDA PROTEGE FS ENGINE
USD 51.0

FS Head Gasket
USD 74.99

KING STD MAIN BEARING SET FOR MAZDA PROTEGE FS ENGINE
USD 77.5

AWR Rear Engine Mount
USD 88.99

AWR Front Engine Mount for Protege
USD 95.0

FS Head Bolts w/ Washers
USD 99.99

Cometic FS Engine 84mm Head Gasket
USD 119.99

ARP Head Stud Kit for Mazda FS Engine
USD 136.98

Cometic FS Engine 84.5mm LOW COMPRESSION Head Gasket
USD 139.99

Cometic FS Engine 84mm LOW COMPRESSION Head Gasket
USD 139.99

Timing belt kit for Mazda Protege
USD 139.99

Cometic 93-03 Mazda FS-DE 2.0L 84.5mm .070 inch MLS Head - C
USD 139.99

ARP Stainless Steel Accessory Studs 400-8023 for Mazda
USD 143.93

Cometic FS Engine 84.5mm Head Gasket
USD 149.99

AWR Engine/Transmission Mount (Driver)
USD 150.0

Pope Engineering Performance (PEP) Oil Pan Baffle for Mazda
USD 150.0

AWR Passenger Side Engine Mount - Protege
USD 189.99

Powder Coated Valve Cover for FS Engine
USD 299.99