1991 GMC Syclone Exhaust Systems
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MagnaFlow®Standard Direct Fit Catalytic ConverterGMC Syclone 1991, Standard Catalytic Converter by MagnaFlow®. Converter Configuration: Direct Fit. Without Air Tube. With Pre and Post-Cat O2 Sensor Ports. Catalytic Inlet Diameter: 3". Catalytic Outlet Diameter: 3". Catalytic Converter...$318.00 - ATP®Cast Iron Natural Exhaust ManifoldGMC Syclone 1991, Natural Cast Iron Exhaust Manifold by ATP®. Position: Passenger Side. Color: Natural. Header Coating: Uncoated. ATP Graywerks Exhaust Manifolds are a high quality OE replacement alternative. Each manifold is developed...Manufactured to OE design ensuring manifold will line up and flow like the original unitHigh grade metallurgy resists fatigue cracking and breakage$120.42
- MagnaFlow®Pre-OBDII Universal Fit Oval Body Catalytic ConverterGMC Syclone with PRE-OBDII Standard 1991, Pre-OBDII Catalytic Converter by MagnaFlow®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Oval. Without Air Tube. Without O2 Sensor Port. Catalytic Inlet Diameter:...$480.00
- MagnaFlow®Standard Universal Fit Oval Body Catalytic ConverterGMC Syclone 1991, Standard Catalytic Converter by MagnaFlow®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Oval. Without Air Tube. Without O2 Sensor Port. Catalytic Inlet Diameter: 2.5". Catalytic Outlet...$119.00
- Dorman®Cast Iron Natural Exhaust ManifoldGMC Syclone 1991, Cast Iron Natural Exhaust Manifold by Dorman®. Position: Driver Side. Color: Natural. Header Coating: Uncoated. This exhaust manifold was precision-engineered and durably manufactured to match the fit and function of...Ideal replacement - this exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the stock manifold on specified vehiclesReliable construction - durable materials resist warping, cracking and leaking for long-lasting performance$104.10
- MagnaFlow®Direct Fit Catalytic ConverterGMC Syclone 1991, Catalytic Converter by MagnaFlow®. Converter Configuration: Direct Fit. Without Air Tube. Without O2 Sensor Port. If your car needs replacement, install one that will get you through the smog check. This converter will...$895.00 - $931.00
- Dorman®Steel Exhaust Manifold Hardware KitGMC Syclone 1991, Steel Exhaust Manifold Hardware Kit by Dorman®. Dorman manifold bolt and spring kits are just what you need to secure the front flange. Dorman offers products like fasteners and solutions to keep your vehicle running...Direct replacement for a proper fitBuilt to Last$23.87
- DIY Solutions®Exhaust Manifold BoltGMC Syclone 8th Vin Digit Z 1991, Exhaust Manifold Bolt by DIY Solutions®. If you're seeking to get your steel stallion back to its tip-top condition, then this top-notch replacement solution is what you should definitely look out...Designed to help restore your vehicle to its former gloryQuick replacement to let you enjoy an awesome ride again$31.57 - $56.05
- Fel-Pro®Exhaust Manifold Gasket SetGMC Syclone 1991, Exhaust Manifold Gasket Set by Fel-Pro®. If you need durable gaskets to prevent leaks on your vehicle, Fel-Pro is the way to go. Engineered using the latest technologies and global engineering resources, the gaskets...Ensures reliable sealing performanceMade using advanced technologies and molded rubber chemistry$13.80 - $33.11
- Mahle®Graphite/Wire Mesh with Sleeve Exhaust Pipe Flange GasketGMC Syclone 1991, Graphite/Wire Mesh with Sleeve Exhaust Pipe Flange Gasket by Mahle®. Location: Exhaust Manifold to Exhaust Pipe. This product is made of high-quality materials to serve you for years to come. Designed using...High quality at an affordable priceExpertly made from premium materials$9.93
- Fel-Pro®Steel Sleeve Exhaust Pipe Flange GasketGMC Syclone 1991, Steel Sleeve Exhaust Pipe Flange Gasket by Fel-Pro®. If you need durable gaskets to prevent leaks on your vehicle, Fel-Pro is the way to go. Engineered using the latest technologies and global engineering resources,...Direct OEM replacement for a proper fitEnsures reliable sealing performance$9.30
- Apex Auto®Exhaust Manifold Gasket SetGMC Syclone 1991, Exhaust Manifold Gasket Set by Apex Auto®. Designed utilizing the latest technology, this product by Apex Auto features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle,...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$5.34
- Mahle®Composite Exhaust Manifold Gasket SetGMC Syclone 1991, Composite Exhaust Manifold Gasket Set by Mahle®. 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...High quality at an affordable priceExpertly made from premium materials$8.55
- Fel-Pro®Exhaust Flange Stud and NutGMC Syclone 1991, Exhaust Flange Stud and Nut by Fel-Pro®. If you are looking for quality sealing solutions, Fel-Pro offers you various replacement products from seals and bolts to O-Rings and dowel pins. Engineered using the latest...Direct OEM replacement for a proper fitEnsures reliable sealing performance$15.80 - $16.90
- JBA®Exhaust Header GasketsGMC Syclone 1991, Exhaust Header Gaskets by JBA®. JBA is proud to offer accessories to aid in the fitment of your JBA exhaust product. This product is made of high-quality materials to serve you for years to come. Designed using...JBA's premium header flange gaskets are made extra thick from a specially made formulated gasket materialTheir gaskets are rated up to 1100 F$36.95
- Patriot Exhaust®Percy's Seal-4-Good™ Exhaust Header GasketsGMC Syclone 1991, Percy's Seal-4-Good™ Exhaust Header Gaskets by Patriot Exhaust®. This superior Patriot Exhaust product is just for you. Carefully designed for maximum performance, is will more than just meet your needs and...Special "dead soft" aluminum conforms to flange to make an excellent sealSolid metal gasket will not blow out$45.85
- Dorman®Metal Exhaust Manifold Studs and Nuts KitGMC Syclone 1991, Metal Exhaust Manifold Studs and Nuts Kit by Dorman®. Dorman’s Exhaust Manifold Hardware Kit provides you with the proper studs, bolts, and nuts for replacing your manifold. Save time and energy by having the right...Direct replacement for a proper fit every timeDurable steel construction$6.66 - $12.43
- Dorman®Metal Exhaust Manifold Bolt and Spring KitGMC Syclone 1991, Metal Exhaust Manifold Bolt and Spring Kit by Dorman®. Position: Front. Exhaust manifold fastener kits provide a time-saving solution for repairing the manifold. Each kit is designed for direct replacement of rusted or...New hardware helps fix exhaust leaksKits include hardware to securely attach the manifold to the exhaust system$4.73 - $10.40
- TRQ®Oxygen SensorGMC Syclone 1991, Oxygen Sensor by TRQ®. Position: Upstream. 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 it is replacing, the...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$35.95Save: $1.80 (5%)$34.15
- Walker Products®Oxygen SensorGMC Syclone 1991, Oxygen Sensor by Walker Products®. Position: Upstream. Location: B1S1. 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...High quality at an affordable priceExpertly made from premium materials$32.21
- Bosch®Premium Narrow-band Oxygen SensorGMC Syclone 1991, Premium Narrow-band Oxygen Sensor by Bosch®. Position: Upstream. 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...OE Identical ConnectorCompact Design$44.91
- Denso®Oxygen SensorGMC Syclone 1991, Oxygen Sensor by Denso®. Position: Upstream. 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....High quality plastic and/or steel constructionDirect replacement for a proper fit every time$36.99
- ACDelco®Genuine GM Parts™ Oxygen SensorGMC Syclone 1991, Genuine GM Parts™ Oxygen Sensor by ACDelco®. Position: Upstream. Location: In Exhaust Manifold/Crossover. If your O2 sensor is not functioning properly, you are robbing yourself of performance and costing yourself...ACDelco GM OE Oxygen Sensors earn the name ACDelco by being put through a variety of tests, often under extreme and unusual conditionsDetects oxygen content in the exhaust gases$26.52 - $59.11Save: 15%$22.57 - $50.25
- NTK®Oxygen SensorGMC Syclone 1991, Oxygen Sensor by NTK®. Position: Upstream. Location: B1S1. Thimble type sensors feature a ceramic element that projects into the exhaust system and becomes electrically conductive at high temperature. The sensor...Increases vehicle fuel economy and engine performance while decreasing vehicle exhaust emissionsDirect replacement$30.71
- Walker Products®Premium Oxygen SensorGMC Syclone 1991, Premium Oxygen Sensor by Walker Products®. Position: Upstream. 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$38.96
- Bosch®Narrow-band Oxygen SensorGMC Syclone 1991, Narrow-band Oxygen Sensor by Bosch®. Position: Upstream. 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...OE-EquivalentOE Style connectors and wire lengths$45.05
- Delphi®Oxygen SensorGMC Syclone 1991, Oxygen Sensor by Delphi®. Position: Upstream. 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$45.52
- WVE®Oxygen Sensor ConnectorGMC Syclone 1991, Oxygen Sensor Connector 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...Excellent replacement for your worn-out factory partDesigned to keep your vehicle running reliably mile after mile$10.78
- AP Exhaust®Xlerator Performance Exhaust Muffler with Inlet/Outlet NeckUniversal Xlerator Performance Exhaust Muffler with Inlet/Outlet Neck by AP Exhaust®. Today’s exhaust performance market continues to cover a broad spectrum of vehicles. The unique nature of this market is that a product demand is not...Deep performance soundIncreased exhaust flow$25.34 - $62.13
- Gibson®MWA™ Stainless Steel Oval Gray Exhaust MufflerUniversal MWA™ Stainless Steel Oval Gray Exhaust Muffler by Gibson®. Muffler Body Length: 14". Muffler Overall Length: 20". Muffler Sound: Aggressive / Loud. Get optimum usable power and a powerful aggressive sound with a Gibson MWA...$105.43 - $139.24
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