1991 Acura NSX Emission Control Parts
- TRQ®Upstream O2 Oxygen SensorAcura NSX 1991, 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$35.95Save: $1.80 (5%)$34.15
- Beck Arnley®PCV ValveAcura NSX 1991, PCV Valve by Beck Arnley®. Make sure your vehicle’s emission control system performs at its optimum level with top-of-the-line Beck Arnley replacement emission control parts. Designed to match OE (original equipment)...Designed to ensure reliable operation of your emission control systemDirect OE (original equipment) replacement$4.01
- Standard®Intermotor™ PCV ValveAcura NSX 1991, Intermotor™ PCV 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 reputation for integrity...Made with precision and quality in mindDesigned to meet your specific needs$4.16
- Denso®Oxygen SensorAcura NSX 1991, Oxygen Sensor by Denso®. Make sure your engine runs efficiently and produces fewer emissions by replacing your malfunctioning fuel-ratio sensors with these top-notch products designed by Denso. Engineered with the use of...High quality plastic and/or steel constructionDirect replacement for a proper fit every time$35.84 - $41.41
- Walker Products®Oxygen SensorAcura NSX 1991, 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 deliver...High quality at an affordable priceExpertly made from premium materials$32.28
- Bosch®Premium Narrow-band Oxygen SensorAcura NSX 1991, Premium Narrow-band Oxygen Sensor by Bosch®. A worn-out oxygen sensor can cause engine performance problems and shorten the life of the catalytic converter. Tune-up your vehicle with an Oxygen Sensor from Bosch that is...OE Identical ConnectorCompact Design$43.55
- Walker Products®Premium Oxygen SensorAcura NSX 1991, Premium Oxygen Sensor by Walker Products®. Walker Oxygen Sensors are precision made for outstanding performance and manufactured to meet or exceed all original equipment specifications and test requirements. The oxygen...Improved Engine Response & PerformanceLower Emissions$45.66
- NTK®Oxygen SensorAcura NSX 1991, Oxygen Sensor by NTK®. Thimble type sensors feature a ceramic element that projects into the exhaust system and becomes electrically conductive at high temperature. The sensor element then sends voltage signals back to...Increases vehicle fuel economy and engine performance while decreasing vehicle exhaust emissionsDirect replacement$33.97
- Bosch®Narrow-band Oxygen SensorAcura NSX 1991, Narrow-band Oxygen Sensor by Bosch®. 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 which oxygen sensors are...OE-EquivalentOE Style connectors and wire lengths$50.81
- Standard®Intermotor™ Vapor Canister Vent SolenoidAcura NSX 1991, Intermotor™ Vapor Canister Vent 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$96.08
- Denso®Universal Fit Oxygen SensorAcura NSX 1991, Universal Fit Oxygen Sensor by Denso®. Denso's light duty oxygen sensor started to appear on vehicles with the development of fuel injection systems. The basic job of the sensor is to monitor the air fuel mixture under...Corrosion-resistant stainless steel constructionPTFE filter blocks efficiency-robbing contaminants$46.30
- Delphi®Oxygen SensorAcura NSX 1991, Oxygen Sensor by Delphi®. Position: Front. As one of the leading suppliers of oxygen sensor technology since 1978, Delphi planar technology is the result of their OE and aftermarket engineers partnering together to...Resists high temperatures, vibration damage and wire corrosion to protect signal accuracy, and long lifePatented sensors construction and design$85.05
- Dorman®Help™ PCV Valve GrommetAcura NSX 1991, Help™ PCV Valve Grommet by Dorman®. Location: PCV to Valve Cover. This PCV valve grommet is designed to match the fit and function of the original grommet on specified vehicles, and is engineered for durability and...Direct replacement - this PCV valve grommet is designed to match the fit and function of the original grommet on specified vehiclesRestores functionality - this grommet is made to fit and fully restore part functionality after the original grommet fails$2.85 - $6.99
- Beck Arnley®PCV Valve GrommetAcura NSX 1991, PCV Valve Grommet by Beck Arnley®. When investing in this superior product by Beck Arnley, expect to get the exact OEM look, function, and fit. The product was developed to stringent factory specifications and crafted...Made of durable long life rubber materialSeals seepage between the valve cover and PCV valve$1.43
- Beck Arnley®EGR Valve GasketAcura NSX 1991, EGR Valve Gasket by Beck Arnley®. When investing in this superior product by Beck Arnley, expect to get the exact OEM look, function, and fit. The product was developed to stringent factory specifications and crafted...OE quality products from top original equipmentTop quality materials$2.26
- Standard®Intermotor™ EGR Valve GasketAcura NSX 1991, Intermotor™ EGR Valve Gasket by Standard®. Standard is to be the leading independent supplier to the automotive aftermarket, providing the highest quality products, competitive prices and the highest reputation for...Made with precision and quality in mindDesigned to meet your specific needs$2.02
- WVE®EGR Valve GasketAcura NSX 1991, EGR Valve Gasket by WVE®. WVE emissions products are made to meet or exceed vehicle manufacturer specifications to work in concert with the fuel system, underhood electronics and the engine to minimize emissions of...Excellent replacement for your worn-out factory partDesigned to keep your vehicle running reliably mile after mile$1.84 - $19.60
- SKP®EGR Valve GasketAcura NSX 1991, EGR Valve Gasket by SKP®. 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 needs and...Made with precision and quality in mindDesigned to meet your specific needs$0.89
- Mahle®EGR Valve GasketAcura NSX 1991, EGR Valve Gasket by Mahle®. 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 needs...Made with precision and quality in mindDesigned to meet your specific needs$1.58
- Ishino®EGR Valve GasketAcura NSX 1991, EGR Valve Gasket by Ishino®. 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 needs...High quality at an affordable priceExpertly made from premium materials$3.18
- MagnaFlow®Pre-OBDII Universal Fit Round Body Catalytic ConverterAcura NSX with PRE-OBDII Standard 1991, Pre-OBDII Catalytic Converter by MagnaFlow®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Round. Without Air Tube. Without O2 Sensor Port. Catalytic Inlet Diameter: 2"....$560.00
- MagnaFlow®Standard Universal Fit Round Body Catalytic ConverterAcura NSX 1991, Standard Catalytic Converter by MagnaFlow®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Round. Without Air Tube. Without O2 Sensor Port. Catalytic Inlet Diameter: 2". Catalytic Outlet...$88.00
- Walker®CalCat™ Universal Fit Round Body Catalytic ConverterAcura NSX 1991, CalCat™ Catalytic Converter by Walker®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Round. Without O2 Sensor Port. Catalytic Converter Overall Length: 12". Specifically designed to comply...$414.14 - $530.48
- AP Exhaust®Standard Duty Universal Fit Round Body Catalytic ConverterAcura NSX 1991, Standard Duty Catalytic Converter by AP Exhaust®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Round. Without Air Tube. Without O2 Sensor Port. Catalytic Inlet Diameter: 2.25". Catalytic Outlet...$80.78
- Dorman®Catalytic Converter Heat Shield RetainersAcura NSX 1991, Catalytic Converter Heat Shield Retainers by Dorman®. The Catalytic Converter Heat Shield is essential for keeping heat from the exhaust system, away from adjacent automobile parts and flammable materials positioned...Direct replacement ensures a proper fit every timeFor extra protection Heat Shield Bolts are galvanized for rust-resistance$5.65 - $12.94
- Walker®Ultra™ Universal Fit Round Body Catalytic ConverterAcura NSX 1991, Ultra™ Catalytic Converter by Walker®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Round. With 1 Inlet. Without Air Tube. Without O2 Sensor Port. Catalytic Converter Overall Length: 11.5"....$82.49
- Big End Performance®PCV Breather CapPCV Breather Cap by Big End Performance®. 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 deliver great...$12.39 - $15.76
- Big End Performance®Clamp On PCV BreatherClamp On PCV Breather by Big End Performance®. This Big End Performance product is just the option for you in case you want to get the most out of your auto. It is made from first-rate materials to provide the highest level of quality....High quality at an affordable priceExpertly made from premium materials$16.27 - $18.98
- Edelbrock®Victor Series Race Style PCV BreatherVictor Series Race Style PCV Breather by Edelbrock®. Designed utilizing the latest technology, this product by Edelbrock features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$44.95
- 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
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