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  • Mitsubishi
    • Evolution X
      • • Engine
      • • Drivetrain
      • • Exhaust
      • • Turbo & Boost
      • • Intake
      • • Intercooler
      • • Fuel, Nitrous & Meth
      • • Ignition & Starter
      • • Battery & Alternator
      • • Electronics & Tuning
      • • Brakes
      • • Radiator & Cooling
      • • Suspension & Steering
      • • Interior
      • • Exterior
      • • Wheels & Tires
      • • Fluids & Maintenance
      • • Tools, Gear & Safety
      • • Mitsubishi OEM
      • • STM Evo X Parts
      • • Evo X Tech Tips!
    • Evolution 7/8/9
      • • Battery
      • • Brakes
      • • Cooling & Radiator
      • • Drivetrain
      • • Electronics & Tuning
      • • Engine
      • • Exhaust
      • • Exterior
      • • Fluids
      • • Fuel, Nitrous & Meth
      • • Ignition
      • • Intake & Intercooler
      • • Interior
      • • OEM Mitsubishi
      • • Power Packages
      • • Racing, Gear & Tools
      • • Suspension & Steering
      • • Turbo & Boost
      • • Wheels & Tires
      • • STM Exclusive Parts
      • • Evo 8/9 Tech Tips!
    • Evolution 4/5/6
      • • Battery
      • • Brakes
      • • Cooling & Radiator
      • • Drivetrain
      • • Electronics & Tuning
      • • Engine
      • • Exhaust
      • • Exterior
      • • Fluids
      • • Fuel, Nitrous & Meth
      • • Ignition
      • • Intake & Intercooler
      • • Interior
      • • Racing, Gear & Tools
      • • Suspension & Steering
      • • Turbo & Boost
      • • Wheels & Tires
      • • STM Exclusive Parts
    • 1G/2G DSM
      • • Battery
      • • Brakes
      • • Cooling & Radiator
      • • Drivetrain
      • • Electronics & Tuning
      • • Engine
      • • Exhaust
      • • Exterior
      • • Fluids
      • • Fuel, Nitrous & Meth
      • • Ignition
      • • Intake & Intercooler
      • • Interior
      • • Racing, Gear & Tools
      • • Suspension & Steering
      • • Turbo & Boost
      • • Wheels & Tires
      • • STM Exclusive Parts
    • 3000GT/Stealth
      • • Battery
      • • Brakes
      • • Cooling & Radiator
      • • Drivetrain
      • • Electronics & Tuning
      • • Engine
      • • Exhaust
      • • Exterior
      • • Fluids
      • • Fuel, Nitrous & Meth
      • • Ignition
      • • Intake & Intercooler
      • • Interior
      • • Racing, Gear & Tools
      • • Suspension & Steering
      • • Turbo & Boost
      • • Wheels & Tires
  • Audi
    • RS3 8V/8Y (2017+)
    • R8 Gen 2 (2017-2023)
    • R8 Gen 1 (2009-2015)
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  • BMW
    • G8X M2 M3 M4 (2021-2024)
    • F8X M2 M3 M4 (2015-2020)
  • Ford
    • 2017-2020 Raptor Gen2
    • 2021-2024 Raptor Gen3
    • Foxbody Mustang
    • 2015-2020 Mustang GT350
    • 2015+ EcoBoost Mustang
    • 2016+ Focus RS
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    • Super Duty
  • Lamborghini
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    • URUS
    • Gallardo
    • Aventador
  • Mopar
    • Ram TRX
    • Hellcat Challenger/Charger
    • Jeep Trackhawk
    • Jeep Grand Cherokee SRT
  • Nissan
    • R35 GTR
      • • Engine
      • • Drivetrain
      • • Exhaust
      • • Turbo & Boost
      • • Intake
      • • Intercooler
      • • Fuel, Nitrous & Meth
      • • Ignition
      • • Battery
      • • Tuning & Electronics
      • • Brakes
      • • Radiator & Cooling
      • • Suspension & Steering
      • • Interior
      • • Exterior
      • • Wheels & Tires
      • • Fluids & Maintenance
      • • Tools, Gear & Safety
      • • STM GTR Parts
    • 2023+ Z
    • 350Z
    • 370Z
    • Skyline GTR
    • 240SX / Silvia
  • Subaru
    • WRX 2022+
    • WRX 2015-2021
      • • Battery
      • • Brakes
      • • Cooling & Radiator
      • • Drivetrain
      • • Electronics & Tuning
      • • Engine
      • • Exhaust
      • • Exterior
      • • Fluids
      • • Fuel, Nitrous & Meth
      • • Ignition
      • • Intake & Intercooler
      • • Interior
      • • Power Packages
      • • Racing, Gear & Tools
      • • Suspension & Steering
      • • Turbo & Boost
      • • Wheels & Tires
      • • WRX Tech Tips!
    • WRX 2002-2014
      • • Battery
      • • Brakes
      • • Cooling & Radiator
      • • Electronics & Tuning
      • • Engine
      • • Exhaust
      • • Exterior
      • • Fluids
      • • Fuel, Nitrous & Meth
      • • Ignition
      • • Intake & Intercooler
      • • Interior
      • • Power Packages
      • • Racing, Gear & Tools
      • • Suspension & Steering
      • • Turbo & Boost
      • • Wheels & Tires
      • • STM Exclusive Parts
      • • WRX Tech Tips!
    • STi 2004-2021
      • • Battery
      • • Brakes
      • • Cooling & Radiator
      • • Drivetrain
      • • Electronics & Tuning
      • • Engine
      • • Exhaust
      • • Exterior
      • • Fluids
      • • Fuel, Nitrous & Meth
      • • Ignition
      • • Intake & Intercooler
      • • Interior
      • • Power Packages
      • • Racing, Gear & Tools
      • • Suspension & Steering
      • • Turbo & Boost
      • • Wheels & Tires
      • • STM Exclusive Parts
      • • STi Tech Tips!
    • BRZ/FRS/86
  • Toyota
    • GR Corolla
    • MKV Supra GR
    • MKIII/MKIV Supra
  • More Vehicles
    • Corvette
    • Ferrari 488
    • Honda
    • Lexus
      • 2014+ IS250/IS300/IS350
      • 2016-2017 IS200T
      • 2006-2013 IS250/IS350
      • 2001-2005 IS300
    • McLaren
    • Porsche
      • 911 Turbo/S 991.2 (2017+)
      • 911 Turbo/S 991 (2013-2016)
      • 911 Turbo/S 997.2 (2010-2012)
      • 911 Turbo/S 997 (2006-2009)
      • 911 Turbo/S 996 (2000-2005)
      • GT3/GT3 RS 991.2 (2017+)
      • GT3/GT3 RS 991 (2014-2016)
      • GT3/GT3 RS 997.2 (2010-2011)
      • GT3/GT3 RS 997 (2006-2009)
      • GT3/GT3 RS 996 (1999-2005)
      • 911 Carrera 991.2 (2017+)
      • 911 Carrera 991 (2012-2016)
      • Macan Base
      • Macan S
      • Macan GTS
      • Macan Turbo
    • Tesla
  • Fabrication Parts
    • Aluminum Fabrication
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    • Titanium Fabrication
    • Silicone & Clamps
  • Universal Parts
    • Air Filters
    • Batteries
    • Battery Chargers
    • Blow Off Valves
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    • Catch Cans
    • Couplers & Clamps
    • Detail Products
    • Exhaust Gaskets
    • Fittings & Line
    • Fuel, Fluids & Filters
    • Fuel Filters
    • Fuel Pumps
    • Fuel Pump Install Parts
    • Fuel Surge Tank & Cell
    • FPR & Gauges
    • Gauges
    • Heat Protection
    • Lug Nuts
    • Methanol
    • Nitrous
    • Oil Coolers
    • Racing Gear
    • Racing Seats & Harnesses
    • Radiator Caps
    • Shift Knobs
    • Shop Supplies
    • Staging Brakes
    • Steering Wheels
    • Tires
    • Tools
    • Turbos
    • Turbo Feed/Drain/Water
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    • Turbo Oil Filters
    • Wastegates
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Royal Purple Products

Buy Royal Purple oils at STM! STM carries Royal Purple engine oil, drivetrain and gear oil, ATF automatic transmission fluid, assembly lube, grease, coolant additives and engine oil filters.
Buy Royal Purple parts at STM
  • Royal Purple Max-Tuff Synthetic Assembly Lubricant 8oz (01335) Royal Purple Max-Tuff Synthetic Assembly Lubricant 8oz (01335) $21.84
  • Royal Purple High Performance Engine Oil 5W20 (31520) Royal Purple HPS Engine Oil $12.99
  • Royal Purple Ice Radiator Coolant Additive (01600) Royal Purple Ice Radiator Coolant Additive (01600) $12.54
  • Royal Purple Extended Life Oil Filter for Evo/DSM/3S (10-2867) Royal Purple Extended Life Oil Filter for Evo/DSM/3S (10-2867) *Discontinued*
  • Royal Purple Break-In Engine Oil Royal Purple Break-In Engine Oil $13.88
  • Royal Purple High Performance Engine Oil 0W20 (01020) Royal Purple High Performance Engine Oil $9.68 +
  • Royal Purple Ultra-Performance Grease 14.1 oz (01312) Royal Purple Ultra-Performance Grease 14.1 oz $12.99
  • Royal Purple XPR Engine Oil (0W-8) Royal Purple XPR Extreme Performance Racing Engine Oil $18.99
  • Royal Purple HMX High Mileage Engine Oil (5W-20) Royal Purple HMX High Mileage Engine Oil $11.99
  • Royal Purple Synchromax (06512 / 06512) Royal Purple Synchromax (06512-1) $19.99

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