2005 Cadillac STS Performance Headers

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  • 4.6L
    • (0 reviews)
      # 565006751
      Cadillac STS 4.6L 2005, Exhaust Manifold with Integrated Catalytic Converter by Davico®. This product by Davico will be a great solution to replace your failed or damaged catalytic converter. Once your stock cat fails to perform its...
      Helps your vehicle emit harmless gasesDirect OEM replacement
      $270.78 - $274.06
    • (0 reviews)
      # 231023330
      Cadillac STS 4.6L 2005, Exhaust Manifold with Integrated Catalytic Converter by DEC®. Pick out a catalytic converter by DEC and get your emissions back into check without worrying to fail again. These catalytic converters are made from...
      Direct fitMade from a heavy duty stainless steel outer shell
      $397.49
    • (0 reviews)
      # 76927076
      Cadillac STS 3.6L 2005, Cast Iron Exhaust Manifold by Dorman®. Color: Natural. Header Coating: Uncoated. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with...
      High Quality tubular construction protects against warping and/or crackingLeak-resistant for long-lasting performance
      $90.95 - $91.95
    • (0 reviews)
      # 231023355
      Cadillac STS 4.6L 2005, Cast Iron Exhaust Manifold with Integrated Catalytic Converter by Dorman®. Color: Natural. Header Coating: Uncoated. More like a complete kit than a single part, many of the Exhaust Manifolds include gaskets and...
      Includes heat-shield for protection of hoses, wiring, and other engine componentsConstruction protects against warping and/or cracking
      $326.95 - $393.95
    • (0 reviews)
      # 346284811
      Cadillac STS 4.6L 2005, ECO GM Stainless Steel Exhaust Manifold with Integrated Catalytic Converter by Eastern®. If you need to replace your failed or damaged manifold, this product is the right choice. Designed specifically for your...
      Direct OEM replacementConverts harmful engine emissions to less dangerous gases and water vapor
      $340.11 - $350.15
    • (0 reviews)
      # 231023461
      Cadillac STS 4.6L 2005, Ultra™ Stainless Steel Exhaust Manifold with Integrated Catalytic Converter by Walker®. Walker is an OE supplier to many major nameplate vehicle manufacturers. Trust Walker, an industry leader, for the finest...
      Constructed to meet your vehicle’s specific emissions requirementsDesigned to meet EPA regulations
      $328.65 - $421.41
    • (0 reviews)
      # 389013763
      Cadillac STS 4.6L 2005, Heavy Metal Stainless Steel Exhaust Manifold with Integrated Catalytic Converter by MagnaFlow®. Primary Tubing Diameter: 1.75". Collector Outlet Diameter: 2.25". Color: Silver. Header Coating: Uncoated. If your...
      Reduces harmful emissionsPhysically part of the exhaust header/manifold assembly
      $431.92
    • (0 reviews)
      # 62246929
      Cadillac STS 4.6L 2005, OBDII Stainless Steel Exhaust Manifold with Integrated Catalytic Converter by MagnaFlow®. Primary Tubing Diameter: 1.75". Collector Outlet Diameter: 2.25". Color: Silver. Header Coating: Uncoated. If your car...
      Reduces harmful emissionsPhysically part of the exhaust header/manifold assembly
      $566.48 - $566.58
    • (0 reviews)
      # 62246930
      Cadillac STS 4.6L 2005, OEM Grade Stainless Steel Exhaust Manifold with Integrated Catalytic Converter by MagnaFlow®. Primary Tubing Diameter: 1.75". Collector Outlet Diameter: 2.25". Color: Silver. Header Coating: Uncoated. If your car...
      Reduces harmful emissionsPhysically part of the exhaust header/manifold assembly
      $493.70
    • (0 reviews)
      # 513309504
      Cadillac STS 2005, Exhaust Manifold Gasket by ACDelco®. Designed utilizing the latest technology, this product by ACDelco 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
      $13.86 - $22.28
    • (0 reviews)
      # 231168091
      Cadillac STS 2005, 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...
      Direct OEM replacement for a proper fitEnsures reliable sealing performance
      $17.71 - $52.62
    • (0 reviews)
      # 24067294
      Cadillac STS 2005, Multi-Layer Steel Exhaust Manifold Gasket Set by Victor Reinz®. Material: Multi-Layer Steel. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology...
      High quality at an affordable priceExpertly made from premium materials
      $17.71 - $31.52
    • (0 reviews)
      # mpn616585
      Cadillac STS 4.6L 2005, Sintered Metal Exhaust Seal Ring by Victor Reinz®. Material: Sintered Metal. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with...
      High quality at an affordable priceExpertly made from premium materials
      $6.41
    • (0 reviews)
      # mpn4483468190
      Cadillac STS 3.6L 2005, Graph-Flex™ Exhaust Collector Gasket by Percy's High Performance®. High feature. These durable gaskets are composed of a graphite composition material on a malleable stainless steel core. They’ll seal up...
      Metal stainless steel coreMalleable core conforms to gasket flange for leak-free sealing
      $14.89
    • (0 reviews)
      # mpn4483467669
      Cadillac STS 3.6L 2005, Graph-Flex™ Exhaust Header Gaskets by Percy's High Performance®. High feature. These durable header flange gaskets are composed of a graphite composition material on a malleable stainless steel core. They’ll...
      Malleable stainless steel metal coreWill survive 2000°F exhaust temperatures for extended periods
      $24.44
    • (0 reviews)
      # 652464821
      Cadillac STS 3.6L 2005, HTR Collector Gaskets by Percy's High Performance®. This products is an OEM and Performance company that was built on its founding heritage supported by a tradition of Legendary Quality.
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $14.44 - $19.14
    • (0 reviews)
      # mpn4483467905
      Cadillac STS 3.6L 2005, Seal-4-Good™ Exhaust Header Gaskets by Percy's High Performance®. High feature. Don’t put up with that ominous, unmistakable “tick, tick, tick” sound of an exhaust manifold leak. If it isn’t leaking air...
      Multi-layered for excellent conformability and sealSeals even imperfect flanges
      $35.80
    • (0 reviews)
      # mpn4483468091
      Cadillac STS 3.6L 2005, XX Carbon™ Exhaust Collector Gasket by Percy's High Performance®. High feature. Exhaust wraps help to retain heat in your exhaust system, which increases Horsepower while reducing radiant heat damage,...
      Helps to Increase HorsepowerMade of High Quality materials
      $13.52
    • (0 reviews)
      # mpn4483467824
      Cadillac STS 3.6L 2005, XX Carbon™ Exhaust Header Gaskets by Percy's High Performance®. High feature. These durable header flange gaskets are composed of a graphite composition material on a malleable stainless steel core. They’ll...
      Malleable stainless steel metal coreWill survive 2000°F exhaust temperatures for extended periods
      $22.19
    • (0 reviews)
      # 652486794
      Cadillac STS 2005, Vibe-Lock Header Bolt Kit by Percy's High Performance®. This product is made from high-grade materials to meet the strictest standards of high quality. Designed with the utmost care and attention to detail, this...
      Built to match your exact requirementsHigh quality you can rely on
      $14.04 - $97.97
    • (0 reviews)
      # mpn3557984148
      Cadillac STS 3.6L 2005, Header Locking Bolt Kit by Stage 8®. Stage 8 locking fastener solutions are fail-safe when used and installed as directed. They are removable and reusable and can be visually inspected; if the locking retainer...
      Thoughtfully designed for the highest efficiency and safetyWill provide more breakaway torque than any other locking system
      $65.28
    • (0 reviews)
      # 1092440822
      Cadillac STS 4.6L 2005, Exhaust Manifold with Integrated Catalytic Converter by PaceSetter®. PaceSetter Manifold Catalytic Converters are custom-engineered to deliver maximum performance and efficiency from your engine with durability...
      Manifold Catalytic Converters are a direct replacement for original equipmentManufactured using mandrel-bent stainless steel tubing for a low restriction tubular manifold design
      $241.10
    • (0 reviews)
      # 1091858834
      Cadillac STS 2005, 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,...
      Quick accurate delivery with excellent fill-rateExcellent inventory availability
      $11.02 - $31.61
    • (0 reviews)
      # 781513773
      Exhaust Flanges by Kooks®. 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, this product by Kooks will last a lifetime. It will meet...
      Expertly crafted from premium materialsDesigned to match rigorous quality standards
      $13.17 - $85.49
    • (0 reviews)
      # mpn1622044890
      Universal Brass Exhaust Manifold Hardware Kit by Dorman®. Material: Brass. Dorman's Exhaust Nuts are now available separately for exhaust manifold repairs. These direct replacement nuts are ideal for securing exhaust components and used...
      Direct replacement for a proper fit every timeHigh-quality steel and rubber materials provides years of trouble-free service
      $3.62
    • (0 reviews)
      # 391603525
      Cadillac STS 4.6L 2005, Stainless Steel Direct Fit Exhaust Manifold with Integrated Catalytic Converter by AP Exhaust®. The growing concern for the environment means there is a growing need for quality emission control products. AP...
      5-year / 50,000-mile warranty on converterSpecifically engineered for Manifold Converter equipped vehicles.
      $286.70
    • (0 reviews)
      # 231168094
      Cadillac STS 4.6L 2005, Exhaust Manifold with Integrated Catalytic Converter by ATP®. Color: Natural. Header Coating: Uncoated. ATP Graywerks Exhaust Manifold-Converters provide a tested and proven solution to repair vehicles with...
      Engineered as direct OE replacement ensuring manifold will line up and flow like the original unitHigh grade steel and precious metals resist fatigue and provide long lasting reliable catalyst performance
      $326.04 - $364.01
    • (0 reviews)
      # 346284808
      Cadillac STS AWD 4.6L 2005, ECO CARB Exhaust Manifold with Integrated Catalytic Converter by Eastern®. If you need to replace your failed or damaged manifold, this product is the right choice. Designed specifically for your vehicle,...
      Direct OEM replacementConverts harmful engine emissions to less dangerous gases and water vapor
      $434.66
    • (0 reviews)
      # 1370621596
      Universal Manifold Stud by AP Exhaust®. This superior product was carefully designed with key attention to detail and manufactured from high-grade materials to the strict standards of the highest quality. This AP Exhaust Technologies...
      Made from first-rate materialsEnsures outstanding durability
      $0.29 - $0.78


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