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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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    • (0 reviews)
      # sp7125
      Universal Scavenger X-Pipe Kit by Flowmaster®. The Patented D-Port design of the Scavenger X-Pipe Kit creates a low-pressure area where the exhaust pulse from one pipe helps pull the next exhaust pulse from the other pipe out of...
      $71.08 - $373.93
    • (91 reviews)
      # sp229
      Stainless Steel Exhaust System by Borla®. When you want the best performing, best sounding, and highest quality exhaust system, you want Borla. Borla straight-through mufflers and mandrel-bent exhaust tubes are custom tuned to...
      Throatier Exhaust NoteHorsepower and Torque Increased by 7 – 10%
      $315.99 - $3,535.99
    • (34 reviews)
      # sp230
      Touring™ Stainless Steel Exhaust System by Borla®, MILD GROWL SOUND. When you want the best performing, best sounding, and highest quality exhaust system, you want Borla. Borla straight-through mufflers and mandrel-bent exhaust...
      $315.99 - $1,833.99
    • (52 reviews)
      # sp17451
      Firebird Formula V8 5.7L GAS , Adj™Stainless Steel Cat-Back Exhaust System by Borla®, AGGRESSIVE SOUND, 3" Tubing, Split Rear Exit, and 3.8" x 3" Inlet / 6.75" Outlet Dual Square Angle-Cut Intercooled Tips. This unique system...
      A selection of block-off plates allows you to adjust exhaust flowPlate with larger hole for increased power and a more aggressive exhaust note
      $315.99 - $3,340.99
    • (7 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...
      $222.79 - $1,189.18
    • (68 reviews)
      # sp17452
      American Muscle Car™ Exhaust System by Gibson®. Straight Out The Back Exit. Let the engine in your muscle car breathe and make it sound like a real muscle car with an American Muscle Car Aluminized Steel Cat-Back Exhaust. The...
      CNC mandrel bent exhaust tubingImproved performance
      $222.79 - $1,189.18
    • (6 reviews)
      # sp17600
      Sport 304 SS Cat-Back Exhaust System by Corsa®. Muffler Sound: AGGRESSIVE. Exhaust Inlet Connection Type: Bolt-On. Exhaust Pipe Material: 304 SS. Exit Location: Dual Rear Exit. System Type: Cat-Back. Main Piping Diameter: 2.5"....
      Robust and Bold Performance SoundNo Drone at Touring Speeds
      $639.00 - $2,369.00
    • (0 reviews)
      # sp17602
      6.2L , Touring Stainless Steel Cat-Back Exhaust System by Corsa®, Dual Rear Exit. 2.5" Tubing. 3.5" Twin Pro-Series Tips. The patented Reflective Sound Cancellation (RFC) technology provides a unique combination of a Reserved,...
      $923.89 - $1,569.00
    • (38 reviews)
      # sp839
      Direct Fit Catalytic Converter by MagnaFlow®. If your cat needs replacement, install one that will get you through the smog check and give you more horsepower. This converter will directly replace the factory unit, with little or...
      Reduces harmful emissionsIncreases exhaust flow compared to original factory converter
      $202.84 - $1,748.68
    • (0 reviews)
      # sp840
      Direct Fit Catalytic Converter with Header by MagnaFlow®. If your cat needs replacement, install one that will get you through the smog check and give you more horsepower. This converter is part of the exhaust header/manifold...
      Reduces harmful emissionsIncreases exhaust flow compared to original factory converter
      $376.27 - $1,022.71
    • (0 reviews)
      # sp848
      Direct Fit Header with Catalytic Converter by MagnaFlow®. If your cat needs replacement, install one that will get you through the smog check and give you more horsepower. This converter is part of the exhaust header/manifold...
      Reduces harmful emissionsIncreases exhaust flow compared to original factory converter
      $376.27 - $1,022.71
    • (5 reviews)
      # sp7279
      Direct Fit Pre-OBDII Driver Side Catalytic Converter with Header by MagnaFlow®. If your car needs replacement, install one that will get you through the smog check and give you more horsepower. This converter is part of the exhaust...
      Reduces harmful emissionsIncreases exhaust flow compared to original factory converter
      $238.99 - $796.77
    • (27 reviews)
      # sp7280
      Direct Fit Pre-OBDII Catalytic Converter by MagnaFlow®. If your car needs replacement, install one that will get you through the smog check and give you more horsepower. This converter will directly replace the factory unit, with...
      Reduces harmful emissionsIncreases exhaust flow compared to original factory converter
      $79.39 - $1,095.80
    • (1 review)
      # sp4400
      Race Series Bullet Muffler by DynoMax®. This dyno tested and track proven muffler features unrestricted, straight-through design for maximum horsepower and CRF Technology for sound reduction. Its 100% welded construction ensures...
      Unrestricted, straight-through design for a dyno tested and track proven increase in horsepower and torqueEngineered to provide a deep race sound
      $20.03 - $75.78
    • (4 reviews)
      # sp4401
      Super Turbo™ Muffler by DynoMax®. Get improved exhaust flow and reduced back pressure for better performance, and a mellow tone without annoying interior resonance, with this Super Turbo Muffler. Its patented flow directors and...
      Constructed to increase horsepower and torque thanks to improved exhaust flowAluminized steel Super Turbo muffler maintains a mellow performance tone
      $48.86 - $152.61




    Guides & Articles

    • Performance Exhaust Systems
      Here's A "Tip": Exhaust Tips Are An Easy Way To Dress Up Your Tailpipe
      Performance exhaust systems give you improvements in power output, sound levels, and appearance, all in one package. But let's face it: not everyone has the spare change to buy and bolt up one of these kits. So you soldier on with what you have. And that may be a tired-looking exhaust system that is still functional. You've spent all day washing and waxing the vehicle's paint and chrome to perfection, but no degree of elbow grease will make that tailpipe look better.
    • Performance Exhaust Systems
      Are Headers Worth The Performance Improvement?
      Engines have often been compared to air pumps, because the engine that’s most efficient in terms of economy and power is the one that can get air in and out of its cylinders the easiest. That’s why most performance modifications like conical air filters, cold air intake systems, headers, and cat-back exhaust systems are aimed at making the intake and exhaust systems less restrictive. These parts increase the flow of air into the engine and ease the flow of exhaust gas out of the engine. Among these components, headers may be the most difficult to install. In this article, we’ll discuss what headers do, their different types, and how much performance they can add to your car.
    • Performance Exhaust Systems
      Are X-pipes and H-pipes Better Than Straight Pipes on Dual Exhaust Systems?
      You may be wondering why so many aftermarket performance exhaust system manufacturers are offering dual exhaust systems connected by "H-pipe" or "X-pipe" sections. After all, aren't two separate pipes, or so-called "true duals", the best for performance? The answer is no, but to understand why we have to examine how a typical internal combustion engine works.
    • Performance Exhaust Systems
      Power, Sound, Looks | Can I Have It All With a Cat-Back Exhaust System?
      It's an age-old question that many have asked. Will an aftermarket exhaust be worth the expense? While they definitely can be, an important question to ask yourself is do you care more about the deeper sound they’re designed to produce, or the added performance gained from being less restrictive? As car enthusiasts, we’ve become accustomed to associating the sound of a car with its exhaust. After all, doesn’t everyone have a childhood memory or two of a car and the particular sound it made?
    • Bed Accessories
      Pickup Truck Cab And Bed Sizes Are Important When Selecting Accessories
      Americans love to have choices. Buying a dress shirt? Decide solid or stripe, short or long sleeve, cotton or poly blend, button or spread collar, regular fit, slim fit, or big & tall. How about a meal at your favorite steak house? Will it be porterhouse, T-bone, or sirloin? Cooked rare, medium-rare, or medium? With baked, mashed, or French fried potatoes? Thirsty for a fancy cup of coffee? Let's not even get started on options that let you end up with a "grande caramel macchiato with 1% low-fat milk, 2 Splendas, and an extra espresso shot".
    • Replacement Exhaust Parts
      Direct Fit vs. Universal Mufflers
      Regardless of whether you're shopping for a simple replacement muffler that delivers original equipment (OE) sound and performance or an upgraded muffler which provides a deeper growl with increased power through freer exhaust flow, you'll see choices between "direct fit" mufflers and "universal" mufflers. In this article, we'll help you understand the differences between these two styles so you can make a more informed purchase.

    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) /
    2006 Cadillac STS
    Was this review helpful for you? Yes
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