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Push your Honda Civic Si to stand out in power and sound with a new aftermarket exhaust system from CARiD. CARiD sells a wide variety of Honda Civic Si custom exhaust systems for all 1983 - 2013 Civic Si models. Each Honda Civic Si custom system is built to increase exhaust flow to the maximum for optimal performance. When spent gases have all been sucked into the exhaust system and are not clogging it, the engine effectively takes in clean air and fuel which it requires for power generation. Because their pipes are wider in diameter than those of the stock exhaust, custom exhaust systems reduce backpressure and subsequently increase horsepower. The stock exhaust system, being smaller, causes a rise in backpressure level which results in loss of horsepower. Borla, Flowmaster, MagnaFlow and Injen all have custom built exhausts for each Honda Civic Si model. Replace your stock exhaust system with any of these complete exhaust systems for 10% extra power and torque.

Using a performance header, muffler or catalytic converter alongside the custom exhaust system will give you between 10hp and 20hp more. All the brands mentioned above and others like RBP and Onki have a range of exhaust components that you can use alongside your exhaust system for additional boosts in performance. When buying both the complete exhaust system and individual exhaust components, it is important to choose the product that is designed for your year, model and trim in order to get maximum increase in horsepower, torque and efficiency. One other thing you’ll be grateful to the custom exhaust system for is better sound. All our Honda Civic Si exhaust systems have a roaring exhaust tone which becomes more aggressive with speed increases, but never gets out of control.

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    • MagnaFlow Street Series Exhaust System
      (73 reviews)
      # sp598
      Street Series Exhaust System by MagnaFlow. The Street Series is designed for customers seeking increased performance and better economy, combined with a powerful and well tuned exhaust note, making a real statement within legal...
      $378.87 - $3,904.65
    • MagnaFlow Exhaust Systems
      (119 reviews)
      # sp17449
      Exhaust Systems by MagnaFlow. Muffler Sound: MODERATE. 4" Tubing.
      $202.60 - $3,904.65
    • Takeda Exhaust System
      (5 reviews)
      # sp1802
      Exhaust System by Takeda. Get increased exhaust flow and more horsepower and torque with this stainless steel cat-back exhaust system. Many hours were spent testing this system to ensure it produces maximum power gains with the...
      $395.00 - $2,495.00
    • Skunk2 MegaPower Exhaust System
      (4 reviews)
      # sp7040
      MegaPower Exhaust System by Skunk2. This MegaPower cat-back exhaust system delivers maximum performance and ultimate sound at an affordable price. Dyno-proven for maximum horsepower, it is manufactured from high-quality T-304...
      $497.99 - $674.99
    • DynoMax Super Turbo Exhaust System
      (4 reviews)
      # sp4394
      Super Turbo Exhaust System by DynoMax. Get improved exhaust flow and reduced back pressure for better performance, and a mellow performance exhaust tone without annoying interior resonance, with this axle-back exhaust system. It...
      $101.31 - $543.01
    • DC Sports Polished Stainless Steel Cat-Back Exhaust System
      (1 reviews)
      # sp2676
      Polished Stainless Steel Cat-Back Exhaust System by DC Sports. DC Sports race-inspired Dual Canister systems are available for V6 and select four-cylinder application. Our Dual Canister systems feature twin polished round...
      $273.06 - $701.26
    • Spec-D Exhaust System
      (27 reviews)
      # sp2790
      Exhaust System by Spec-D. Make whatever you drive run and sound like a high-performance machine with a Spec-D Exhaust System. The Spec-D system replaces your restrictive factory pipes and mufflers with large diameter mandrel bent...
      $14.24 - $623.00
    • Ansa Silverline 304 SS Cat-Back Exhaust System
      (2 reviews)
      # sp13097
      Silverline 304 SS Cat-Back Exhaust System by Ansa. Offering a bold look and sound, Silverline Cat-Back Systems are available for select import and domestic sport compacts.
      $265.56 - $431.52
    • APEXi Performance Exhaust Systems
      (0 reviews)
      # sp15884
      WS2 Exhaust System by APEXi. The WS Exhaust series is the APEXi answer to the ultimate street muffler system with all around performance. The canister is made of the highest grade polished SUS304 stainless steel while the mandrel...
      $319.43 - $2,409.00
    • Tanabe Medalion Touring Exhaust System
      (0 reviews)
      # sp17233
      Medalion Touring Exhaust by Tanabe. Turbo Back Exhaust System. Piping: 60mm. Tip: 100mm.
      $560.50 - $1,007.00
    • Skunk2 Alpha Series Stainless Steel Race Header
      (2 reviews)
      # sp7041
      Alpha Series Stainless Steel Race Header by Skunk2. Increase the performance of your exhaust system with these Alpha Series headers. Designed to maximize exhaust flow, provide higher torque and more horsepower through the entire...
      $391.99 - $549.99
    • DC Sports Header
      (3 reviews)
      # sp2674
      Header by DC Sports. DC Sports header systems deliver incredible low-to mid-range power gains, while improving ground clearance and reducing weight by eliminating the middle flanges. Our 4-2-1 one-piece headers are much lighter then...
      $155.57 - $1,036.32
    • Spec-D Exhaust Header
      (4 reviews)
      # sp2791
      Exhaust Header by Spec-D. Make whatever you drive run and sound like a high-performance machine with a Spec-D Exhaust System. The Spec-D system replaces your restrictive factory pipes and mufflers with large diameter mandrel bent...
      $10.68 - $356.00
    • Hedman Hedders Standard Duty HTC Coated Headers
      (0 reviews)
      # sp16184
      Standard Duty HTC Coated Headers by Hedman Hedders.
      $174.05 - $846.63
    • Flowmaster 220 Series Stainless Steel Catalytic Converter
      (12 reviews)
      # sp7124
      The new Flowmaster replacement catalytic converters are made to meet and exceed all federal environmental regulations and, as all Flowmaster products, to deliver the best possible performance. The shells are made of stainless steel,...
      $102.70 - $713.61

    Guides & Articles

    • 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

    Honda Civic Si Performance Exhaust Systems Reviews

    Average rating:  5  5 - 14 reviews
    4.8 of 5
    Injen Axle-Back Exhaust System
    This product has great look, high quality welds and very easy and clear instructions. Everything is as advertised. The sound is not to loud and not obnoxious, but you can hear it even with the radio on. High quality, good service. I recommend it to anyone looking for sound improvement and great look.
    NPosted by Nicolas (Valrico, FL) /
    2012 Honda Civic Si
    Was this review helpful for you? Yes
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