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Bring out the untapped power within the STS engine with a custom exhaust system from CARiD. Each of these custom exhausts is designed to give ultimate gains in power and torque. It is also meant to make the engine more efficient, thus contributing to higher mileage. CARiD’s offering of STS exhaust systems includes the Borla STS cat back exhaust and Corsa axle-back system, available for 2005 – 2011 STS models. The Borla exhaust will give you 7-10% more power while the Corsa exhaust has the ability to increase power by between 5 and 10%. The custom exhaust works by increasing the volume of exhaust flow, which is restricted and limited in a stock exhaust system. In the stock exhaust, waste gases cannot flow to the outside freely and so they end up getting stuck inside the pipes and cylinders. This affects the engine’s performance, and diverts a percentage of the energy needed to keep the car going into dispelling waste gases from the engine cylinders.

With a custom exhaust, this problem is eliminated automatically. Thanks to the wider pipes it uses, a custom exhaust ensures that the flow of waste gases is constant, sending them away from the engine in huge amounts. As there is nothing restricting the engine from taking in fresh air, it can now successfully generate more power than before. A secondary benefit that results from an efficient engine is improved fuel economy. The engine will burn fuel completely, ensuring that there is no wasted or unburned fuel. You will thus drive longer with every gallon of fuel and spend less on fuel over the long term. Other than increased power, torque and fuel efficiency, custom STS exhausts come with enhanced sound, giving your car a more pronounced, friendlier engine note.

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    • (56 reviews)
      # sp17451
      Exhaust System by Borla®. This unique system allows you to adjust your level of sound and power, from quiet and restrictive to louder and free flowing. It features a patented Borla straight-through muffler and mandrel bent pipes...
      $315.99 - $2,794.99
    • (44 reviews)
      # sp839
      Direct Fit Catalytic Converter by MagnaFlow®. If your cat needs replacement, install one that will get you through the smog check. The Direct Fit Catalytic Converter is available in Pre-OBD II, OBD II, and OEM Grade OBD II configurations.
      $79.39 - $3,863.64
    • (9 reviews)
      # sp114642
      Direct Fit OEM Grade Catalytic Converter by Magnaflow®. If your car needs replacement, install one that will get you through the smog check. This converter is part of the exhaust header/manifold assembly, and it will directly replace...
      $148.97 - $3,460.20
    • (0 reviews)
      # sp17602
      Touring Series Exhaust System by Corsa®. The patented Reflective Sound Cancellation (RFC) technology provides a unique combination of a Reserved, Distinctive Performance Sound on acceleration, and No-Drone Comfort when touring. These...
      $955.00 - $1,608.00
    • (8 reviews)
      # sp785
      American Muscle Car™ Exhaust System by Gibson®. Let the engine in your muscle car breathe and make it sound like a real muscle car with an American Muscle Car Cat-Back Exhaust. The mandrel bent tubing and CFT Superflow muffler in this...
      $210.35 - $1,489.29
    • (4 reviews)
      # sp96182
      Direct Fit OEM Grade Catalytic Converter with Header by MagnaFlow®. If your car needs replacement, install one that will get you through the smog check. This converter is part of the exhaust header/manifold assembly, and it will...
      $285.10 - $1,040.56
    • (0 reviews)
      # sp109886
      Heavy Metal Federal Catalytic Converter with Header by MagnaFlow®. If your car needs replacement, install one that will get you through the smog check. This converter is part of the exhaust header/manifold assembly, and it will directly...
      $238.99 - $796.77
    • (0 reviews)
      # sp109887
      OBDII California Catalytic Converter with Header by MagnaFlow®. If your car needs replacement, install one that will get you through the smog check. This converter is part of the exhaust header/manifold assembly, and it will directly...
      $392.65 - $941.10
    • (0 reviews)
      # sp105124
      Standard Grade Direct Fit Catalytic Converter by Flowmaster®. Flowmaster's Standard Grade line of Manifold direct fit catalytic converters are specifically designed to meet or exceed OEM specifications for exact fit and performance, and...
      $160.80 - $1,066.25
    • (4 reviews)
      # sp96188
      Universal Fit Catalytic Converter by MagnaFlow®. If your car needs replacement, install one that will get you through the smog check. This universal fit converter will require some fabrication to be installed, which will involve cutting...
      $69.27 - $466.66
    • (0 reviews)
      # mpn4483468190
      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 tight on almost any...
      Metal stainless steel coreMalleable core conforms to gasket flange for leak-free sealing
      $14.61
    • (0 reviews)
      # sp124125
      by Percy® -'s High Performance Graph-Flex™ Exhaust Header Gaskets. These extreme high-temperature gaskets are well-suited for highly-modified engines: turbocharged, supercharged, nitrous or fuel. This is a premium, high-performance...
      Malleable stainless steel metal coreWill survive 2000°F exhaust temperatures for extended periods
      $17.24 - $23.97
    • (0 reviews)
      # sp124127
      by Percy® -'s High Performance HTR Collector Gasket. This products is an OEM and Performance company that was built on its founding heritage supported by a tradition of Legendary Quality. Designed utilizing the latest technology,perfect...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $14.16 - $18.77
    • (0 reviews)
      # sp124130
      by Percy® -'s High Performance Seal-4-Good™ Exhaust Header Gaskets. These extreme high-temperature gaskets are well-suited for highly-modified engines: turbocharged, supercharged, nitrous or fuel. This is a premium, high-performance...
      Malleable stainless steel metal coreWill survive 2000°F exhaust temperatures for extended periods
      $28.29 - $35.11
    • (0 reviews)
      # sp124132
      by Percy® -'s High Performance XX Carbon™ Collector Gasket. Persy's High Performance makes exhaust manifold and collector gaskets that will withstand the temperatures generated by turbocharged motors, and exhaust gas temperature...
      Modified engines have hotter exhaustBetter materials help seal poorly-mating flanges better.
      $13.26 - $15.30
    • (0 reviews)
      # sp124133
      by Percy® -'s High Performance XX Carbon™ Exhaust Header Gaskets. These extreme high-temperature gaskets are well-suited for highly-modified engines: turbocharged, supercharged, nitrous or fuel. This is a premium, high-performance...
      Malleable stainless steel metal coreWill survive 2000°F exhaust temperatures for extended periods
      $15.63 - $23.79
    • (0 reviews)
      # sp33366
      Vibe-Lock Header Bolts (310040) 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 (company's)...
      Built to match your exact requirementsHigh quality you can rely on
      $13.77 - $195.67
    • (0 reviews)
      # sp92964
      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 and clip are present then...
      Thoughtfully designed for the highest efficiency and safetyWill provide more breakaway torque than any other locking system
      $15.00 - $112.85
    • (0 reviews)
      # sp107342
      O2 Extension Wire by JBA®. 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 quality at an...
      Built to match your exact requirementsHigh quality you can rely on
      $39.55
    • (5 reviews)
      # sp27192
      GM Original Equipment™ Oxygen Sensor by ACDelco®. If your O2 sensor is not functioning properly, you are robbing yourself of performance and costing yourself money at the gas pump. Let ACDelco’s GM OE Oxygen Sensor help.
      ACDelco Professional Oxygen Sensors earn the name ACDelco by being put through a variety of tests, often under extreme and unusual conditionsCustomers can receive better gas mileage with a properly working oxygen sensor
      $13.43 - $187.80
    • (2 reviews)
      # sp27211
      Professional™ Oxygen Sensor by ACDelco®. If your O2 Sensor is not functioning properly, you are robbing yourself of performance and costing yourself money at the gas pump. Let ACDelco’s Professional Oxygen Sensors help. You can find...
      ACDelco Professional Oxygen Sensors earn the name ACDelco by being put through a variety of tests, often under extreme and unusual conditionsCustomers can receive better gas mileage with a properly working oxygen sensor
      $16.86 - $234.25
    • (0 reviews)
      # sp26976
      Oxygen Sensor by Walker®. With their extensive selection of accessories and hardware for the exhaust system, Walker will provide you with everything needed to do the complete exhaust job. When you choose Walker accessories, you get...
      Makes installation quick and easyOptimal OE-style fit and quality
      $25.52 - $289.98
    • (0 reviews)
      # sp5756
      Oxygen Sensor by Delphi®. 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 develop the most innovative oxygen...
      OE connectors and wire lengths within 3" inches of OE specificationsResists high temperatures, vibration damage and wire corrosion to protect signal accuracy, and long life
      $12.60 - $201.38
    • (1 review)
      # sp27974
      Oxygen Sensor by Standard®. SMP’s vision is to be the leading independent supplier to the automotive aftermarket, providing the highest quality products, competitive prices and the highest reputation for integrity to all channels of...
      One-piece laser welded body for maximum protection and precise operation maintaining sensor integrityDual internal talc seal makes Our Oxygen sensors last longer
      $11.36 - $194.89
    • (0 reviews)
      # sp119178
      Universal Oxygen Sensor by Bosch®. Properly functioning oxygen sensors are important when it comes to your vehicle's fuel efficiency and reducing harmful exhaust emissions. That's why checking for, and possibly replacing, a worn-out...
      Up to 15 % savings in fuel costsReduced CO2 emissions
      $13.18 - $56.45
    • (2 reviews)
      # sp92988
      Wideband Oxygen Sensor by Bosch®. Invented for life, Bosch car parts are a rare combination of high quality, dependable service, and a reasonable price. This sensor utilizes a sophisticated sensing element enabling it to produce a...
      Detects the exact amount of unburned fuel in the exhaust streamOE connectors and OE-style harness for continuous wire from connector to sensor
      $41.22 - $311.98
    • (3 reviews)
      # sp94914
      Air Fuel Ratio 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 the...
      Designed to help reduce fuel consumption and harmful emissionsMade with the use of state-of-the-art sensor technologies
      $37.36 - $384.44
    • (14 reviews)
      # sp99082
      OE Connector 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 idle, moderate...
      Designed to help reduce fuel consumption and harmful emissionsMade with the use of state-of-the-art sensor technologies
      $10.73 - $212.14
    • (0 reviews)
      # sp118924
      Universal Fit 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...
      Designed to help reduce fuel consumption and harmful emissionsMade with the use of state-of-the-art sensor technologies
      $11.21 - $69.15
    • (0 reviews)
      # sp121602
      Air-Fuel Ratio Sensor by NTK®. Air/Fuel Ratio Sensors Utilize a Sophisticated Sensing Element that Enables Them to Produce a Precise Output in Proportion to the Air/Fuel Ratio. AFR Sensors Provide the ECU with an Exact AFR Response,...
      Increases vehicle fuel economy and engine performance while decreasing vehicle exhaust emissionsDirect replacement
      $63.80 - $286.17




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    Popular Products



    Cadillac STS Performance Exhaust Systems Reviews

    Average rating:  4.5  4.5 - 1 review
    4.3 of 5
    Fits Like a Glove
    Great product. Better than O.E.M. Did not have to adjust anything with exhaust pipes to make this fit. I would suggest buying the gasket between Manifold and catalytic converter. Does not come with this kit. I rate the ease of installation low because it's very difficult to get to on my Cadillac.
    RPosted by Randi (Frisco, TX) / November 13, 2014
    2006 Cadillac STS
    Was this review helpful for you? Yes

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