2018 Subaru WRX Emission Control Parts
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TRQ®Upstream O2 Oxygen SensorSubaru WRX 2018, Upstream O2 Oxygen Sensor by TRQ®. TRQ oxygen sensors are manufactured to precise specifications using premium raw materials to optimize your vehicle’s emission system. Each sensor is isostatically-pressed for...Intended to bring your vehicle back to its original gloryBudget-friendly alternative to the OEM part$69.79$71.95Save $2.16 (3%) - TRQ®Oxygen SensorSubaru WRX Base / Limited / Premium 2018, Oxygen Sensor by TRQ®. Position: Downstream. If your oxygen sensor fails, replace it with this top-grade part developed to easily fix the problem. Built to fit and function exactly as the part...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$34.51$35.95Save $1.44 (4%)
- Walker Products®Oxygen SensorSubaru WRX 2018, Oxygen Sensor by Walker Products®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and...High quality at an affordable priceExpertly made from premium materials$50.98 - $103.15
- Walker Products®Premium Oxygen SensorSubaru WRX 2018, Premium Oxygen Sensor by Walker Products®. Position: Downstream. Walker Oxygen Sensors are precision made for outstanding performance and manufactured to meet or exceed all original equipment specifications and test...Improved Engine Response & PerformanceLower Emissions$60.09 - $114.65
- Bosch®Narrow-band Oxygen SensorSubaru WRX STI 2.5L 2018, Narrow-band Oxygen Sensor by Bosch®. Position: Downstream. The Bosch oxygen sensor utilizes a mix of zirconium and yttrium oxides and other elements to form a tough base that withstands the intense stress to...OE-EquivalentOE Style connectors and wire lengths$42.09
- Dorman®New Help™ PCV ValveSubaru WRX STI 2.5L 2018, New Help™ PCV Valve by Dorman®. Standard Replacement. Keep your vehicle’s emission control system in top-notch condition with superior Dorman replacement emission control parts. Manufactured from top-grade...Application specific - components designed to replace original components on certain vehiclesDurable materials - made to resist fluctuating under-hood temperatures to ensure longevity$13.01
- Walker Products®Wideband Premium Oxygen SensorSubaru WRX Base / Limited / Premium 2018, Wideband Premium Oxygen Sensor by Walker Products®. Position: Upstream. Location: B1S1 Sensor. Walker Oxygen Sensors are precision made for outstanding performance and manufactured to meet or...High quality at an affordable priceExpertly made from premium materials$122.70
- Standard®New Intermotor™ Secondary Air Injection PumpSubaru WRX 2018, New Intermotor™ Secondary Air Injection Pump by Standard®. Standard is to be the leading independent supplier to the automotive aftermarket, providing the highest quality products, competitive prices and the highest...Made with precision and quality in mindDesigned to meet your specific needs$408.78
- Standard®Intermotor™ Vapor Canister Purge SolenoidSubaru WRX 2018, Intermotor™ Vapor Canister Purge Solenoid by Standard®. Standard is to be the leading independent supplier to the automotive aftermarket, providing the highest quality products, competitive prices and the highest...Made with precision and quality in mindDesigned to meet your specific needs$41.17 - $113.42
- TRQ®Secondary Air Injection Check ValveSubaru WRX / WRX STI 2018, Secondary Air Injection Check Valve by TRQ®. Enjoy your driving to the fullest again with TRQ. Made with superior materials to meet your expectations, this top-grade secondary air injection check valve is...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$98.95
- Walker Products®Premium Air Fuel Ratio SensorSubaru WRX STI Base / Limited / Type RA 2.5L 2018, Premium Air Fuel Ratio Sensor by Walker Products®. Position: Upstream. Location: B1S1 Sensor. Walker Oxygen Sensors are precision made for outstanding performance and manufactured to...Designed to meet or exceed OE specifications in form, fit and functionGlobal coverage for import and/or domestic applications$139.71
- Standard®Secondary Air Injection Pump Check ValveSubaru WRX STI 2018, Secondary Air Injection Pump Check Valve by Standard®. Standard is to be the leading independent supplier to the automotive aftermarket, providing the highest quality products, competitive prices and the highest...Made with precision and quality in mindDesigned to meet your specific needs$256.47
- Genuine®Oil SeparatorSubaru WRX STI Base / Limited / Type RA 2.5L 2018, Oil Separator by Genuine®. Genuine is here to give you the ultimate in quality and reliability at a cost you can afford. Designed utilizing the latest technologies and manufactured from...Made with precision and quality in mindDesigned to meet your specific needs$37.68
- TRQ®Secondary Air Injection Control ValveSubaru WRX / WRX STI 2018, Secondary Air Injection Control Valve by TRQ®. Expertly developed to meet the rigorous standards for quality and durability, this top-grade TRQ secondary air injection control valve will bring your vehicle...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$80.95
- Dorman®OE Solutions™ Secondary Air Injection Check ValveSubaru WRX STI 2.5L 2018, OE Solutions™ Secondary Air Injection Check Valve by Dorman®. This secondary air injection check valve is designed to match the fit and function of the original valve on specified vehicles, and is engineered...Direct replacement - this secondary air injection check valve is designed to match the fit and function of the original valve on specified vehiclesRestores functionality - this valve is made to fit and fully restore part functionality after the original valve fails$178.29 - $201.20
- Dorman®OE Solutions™ Oil Separator CoverSubaru WRX STI 2.5L 2018, OE Solutions™ Oil Separator Cover by Dorman®. This engine oil separator cover is designed to match the fit and function of the original cover on specified vehicles, and is engineered for durability and...Direct replacement - this engine oil separator cover is designed to match the fit and function of the original cover on specified vehiclesRestores functionality - this cover is made to fit and fully restore part functionality after the original cover fails$21.48
- MagnaFlow®OEM Grade Direct Fit Catalytic ConverterSubaru WRX Automatic CVT Transmission 2018, OEM Grade Catalytic Converter by MagnaFlow®. Converter Configuration: Direct Fit. If your car needs replacement, install one that will get you through the smog check. This converter is part of...$534.00 - $839.00
- MagnaFlow®OEM Grade Universal Fit Round Body Catalytic ConverterSubaru WRX Automatic CVT Transmission 2018, OEM Grade Catalytic Converter by MagnaFlow®. Converter Configuration: Universal Fit. Position: Rear. Catalytic Converter Body Shape: Round. Without Air Tube. Without O2 Sensor Port. Catalytic...$194.00
- Eastern Catalytic®Standard Direct Fit Catalytic ConverterSubaru WRX 2018, Standard Catalytic Converter by Eastern Catalytic®. Converter Configuration: Direct Fit. Position: Rear. Without O2 Sensor Port. Catalytic Converter Overall Length: 59". If you need to replace your failed or damaged...$364.34
- Granatelli Motor Sports®Valve Cover BreatherValve Cover Breather by Granatelli Motor Sports®. This product is made of high-quality components to meet and exceed strict quality requirements. Designed using state-of-the-art technology and with customers in mind. It will meet your...Made with precision and quality in mindDesigned to meet your specific needs$15.96
- Granatelli Motor Sports®Valve Cover Breather InsertValve Cover Breather Insert by Granatelli Motor Sports®. This product is made of high-quality components to meet and exceed strict quality requirements. Designed using state-of-the-art technology and with customers in mind. It will meet...Made with precision and quality in mindDesigned to meet your specific needs$50.69 - $67.83
- iD Select®ECO II Universal Fit Catalytic ConverterUniversal ECO II Catalytic Converter by iD Select®. Converter Configuration: Universal Fit. Catalytic Converter Overall Length: 16". Swap out your worn-out or malfunctioning part with this top-notch exhaust product from iD Select....$144.22 - $146.77
- Walker®Ultra™ Universal Fit Catalytic ConverterUniversal Ultra™ Catalytic Converter by Walker®. Converter Configuration: Universal Fit. This part features the correct load of precious metals to ensure the proper limitation of tailpipe emissions. It meets the EPA policy and...$100.00 - $285.30
- Torxe™Universal Fit Catalytic ConverterUniversal Catalytic Converter by Torxe™. Converter Configuration: Universal Fit. Catalytic Inlet Diameter: 2". Universal Fit Catalytic Converter by Torxe. Replace your clogged, corroded, and malfunctioning catalytic converter for the...$108.00 - $175.00
- AP Exhaust®Enhanced Standard Duty Universal Fit Oval Body Catalytic ConverterUniversal Enhanced Standard Duty Catalytic Converter by AP Exhaust®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Oval. Without O2 Sensor Port. Catalytic Converter Overall Length: 16". Today’s exhaust...$90.57 - $125.57
- AP Exhaust®Universal Fit Round Body Catalytic ConverterUniversal Catalytic Converter by AP Exhaust®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Round. Without Air Tube. Today’s exhaust performance market continues to cover a broad spectrum of vehicles. The...$232.31 - $339.18
- Eastern Catalytic®Universal Fit Large Oval Body Catalytic ConverterUniversal Catalytic Converter by Eastern Catalytic®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Large Oval. Catalytic Converter Overall Length: 16". Whether your catalytic converter is damaged by road debris...$155.38 - $255.04
- Eastern Catalytic®Universal Fit Oval Body Catalytic ConverterUniversal Catalytic Converter by Eastern Catalytic®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Oval. Whether your catalytic converter is damaged by road debris or failed due to an engine problem, you...$118.45 - $187.70
- Eastern Catalytic®Universal Fit Round Body Catalytic ConverterUniversal Catalytic Converter by Eastern Catalytic®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Round. Whether your catalytic converter is damaged by road debris or failed due to an engine problem, you...$129.11 - $178.82
- AP Exhaust®608 Series Universal Fit Catalytic ConverterUniversal 608 Series Catalytic Converter by AP Exhaust®. Converter Configuration: Universal Fit. Without Air Tube. Today’s exhaust performance market continues to cover a broad spectrum of vehicles. The unique nature of this market is...$104.68 - $268.86
