2008 Honda Civic Si Performance Exhaust Systems

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    • (0 reviews)
      # 409770313
      Honda Civic Si 2008, Twisted Steel™ 304 SS Tri-Y Long Tube Exhaust Headers by aFe®. Primary Tubing Diameter: 1.625". Collector Outlet Diameter: 2.5". The new Twisted Steel performance header from aFe Power is redefining the...
      Optimized Tube Lengths Improve Flow and Performance100% hand MIG-welded construction ensures optimal strength and durability
      $729.00 - $829.00
    • (0 reviews)
      # 70194611
      Honda Civic Si 2008, Sport Series™ 409 SS Exhaust System by HKS®. Exhaust Tubing Material: 409 SS. Main Tubing Diameter: 2.4" to 2.6". Professionally developed with a racer in mind, this HKS exhaust system provides an easy...
      Upgrades both the horsepower and sound of your vehicleMade from premium quality materials
      $588.92 - $695.08
    • (0 reviews)
      # 95333279
      Honda Civic Si 2008, N1™ Stainless Steel Cat-Back Exhaust System by Invidia®. Exhaust Type: Cat-Back. Exhaust Tubing Material: Stainless Steel. For a good balance of price and performance, Invidia offers the motorsports...
      Made to boost the performance of your vehicleExpertly crafted from premium materials
      $501.90 - $617.40
    • (0 reviews)
      # 95333282
      Honda Civic Si 2008, Q300™ Stainless Steel Cat-Back Exhaust System by Invidia®. Exhaust Type: Cat-Back. Exhaust Tubing Material: Stainless Steel. Main Tubing Diameter: 2.75". The flat bottom shaped muffler design results in...
      SUS304 polished stainless steel pipingMandrel bent to shape
      $540.40 - $578.90
    • (0 reviews)
      # 217962283
      Honda Civic Si 2008, Mega Power RR™ Stainless Steel Cat-Back Exhaust System by Skunk2®. Exhaust Type: Cat-Back. Exhaust Tubing Material: Stainless Steel. Main Tubing Diameter: 3". Skunk2’s MegaPower RR Exhaust systems were...
      Designed for maximum performanceGenerates more horsepower by optimizing engine airflow
      $591.99
    • (0 reviews)
      # 217962280
      Honda Civic Si 2008, Mega Power R™ Stainless Steel Cat-Back Exhaust System by Skunk2®. Exhaust Type: Cat-Back. Exhaust Tubing Material: Stainless Steel. Main Tubing Diameter: 2.75". Skunk2’s MegaPower R Exhaust systems were...
      Designed for maximum performanceGenerates more horsepower by optimizing engine airflow
      $560.99
    • (0 reviews)
      # mpn2247807
      Honda Civic Si 2008, 304 SS Axle-Back Exhaust System by Takeda®. Exhaust Type: Axle-Back. Exhaust Tubing Material: 304 SS. Main Tubing Diameter: 2.5". System Sound: Aggressive. Get increased exhaust flow and more horsepower and...
      Increases horsepower and torqueImproves performance
      $459.00
    • (1 review)
      # 98828617
      Honda Civic Si 2008, Stainless Steel Exhaust System by Injen®. Exhaust Tubing Material: Stainless Steel. Main Tubing Diameter: 2.36". The perfect complement to your Injen air intake system is an Injen performance exhaust system....
      Increases horsepower and torqueManufactured from 100% 304 stainless steel
      $395.63 - $729.47
    • (0 reviews)
      # 88860215
      Honda Civic Si 2008, Single Canister™ 304 SS Exhaust System by DC Sports®. Exhaust Tubing Material: 304 SS. Main Tubing Diameter: 2.5". DC Sports exhaust systems are CNC Mandrel bent from T304 stainless steel, hand welded,...
      Individually tuned and dyno-tested for maximum performanceUses factory mounting locations for ease of installation and solid hangers for added durability
      $318.32 - $533.72
    • (1 review)
      # 78253264
      Honda Civic Si Coupe 2008, N1 Style™ 304 SS Cat-Back Exhaust System by Spec-D®. Exhaust Type: Cat-Back. Exhaust Tubing Material: 304 SS. Main Tubing Diameter: 2.5". Make whatever you drive run and sound like a high-performance...
      Made of high quality T-304 stainless steelMaximum performance which increases up to 15 horsepower
      $154.33
    • (0 reviews)
      # 488563769
      Honda Civic Si 2008, Supreme SP™ 304 SS Cat-Back Exhaust System by GReddy®. Exhaust Type: Cat-Back. Exhaust Tubing Material: 304 SS. Main Tubing Diameter: 2.5". The legacy of the GReddy SP lives on with GReddy’s best version...
      More refine exhaust note; inside and outHand TIG-weld 304 Stainless Steel
      $660.25
    • (0 reviews)
      # mpn470412093
      Honda Civic Si Coupe 2008, N1 Evo-R™ 304 SS Single Cat-Back Exhaust System by APEXi®. Exhaust Type: Cat-Back. Exhaust Tubing Material: 304 SS. Main Tubing Diameter: 2.5". System Sound: Deep Tone. The N1 series muffler has become...
      Ideal for the daily driver car of an enthusiastMade from high-quality materials
      $579.98
    • (0 reviews)
      # mpn470411774
      Honda Civic Si Coupe 2008, NOIR™ Mild Steel Cat-Back Exhaust System by APEXi®. Exhaust Type: Cat-Back. Exhaust Tubing Material: Mild Steel. Main Tubing Diameter: 2.55". The NOIR Muffler was developed specifically with the diehard...
      Muffler is based on the "Original" WS (World Sport) Muffler Canister and TipFinished with an ALL Matte-Black Color Powdercoat from Piping - to - Tip
      $579.98
    • (0 reviews)
      # 132243229
      Honda Civic Si 2008, WS2 Mild Steel Single Cat-Back Exhaust System by APEXi®. Exhaust Type: Cat-Back. Exhaust Tubing Material: Mild Steel. Main Tubing Diameter: 2.55". The WS Exhaust series is the A'PEX answer to the ultimate...
      Designed to boost your vehicle's performanceProvides excellent low and mid range power without excessive noise
      $610.88 - $626.18
    • (0 reviews)
      # 345377241
      Honda Civic Si 2008, Pro Spec™ Stainless Steel Cat-Back Exhaust System by Buddy Club®. Exhaust Type: Cat-Back. Exhaust Tubing Material: Stainless Steel. Main Tubing Diameter: 2.56". Based off the same racing proven technologies...
      Designed to help your auto operate at its peakMade to provide improved exhaust flow
      $700.00
    • (0 reviews)
      # mpn470446678
      Honda Civic Si Sedan 2008, Classic™ Stainless Steel Cat-Back Exhaust System by Thermal R&D®. Exhaust Type: Cat-Back. Exhaust Tubing Material: Stainless Steel. Main Tubing Diameter: 3". This Thermal R&D product is just the option...
      High quality at an affordable priceExpertly made from premium materials
      $628.90
    • (0 reviews)
      # mpn470446679
      Honda Civic Si Coupe 2008, Turbo™ Stainless Steel Cat-Back Exhaust System by Thermal R&D®. Exhaust Type: Cat-Back. Exhaust Tubing Material: Stainless Steel. Main Tubing Diameter: 3". This Thermal R&D product is just the option...
      High quality at an affordable priceExpertly made from premium materials
      $628.90
    • (0 reviews)
      # mpn457857384
      Honda Civic Si 2008, Stainless Steel Exhaust Manifold by Invidia®. Do you want to get more power out of your vehicle? Then this superior Invidia product is just for you. Carefully designed for maximum performance, is will more than...
      Made to boost the performance of your vehicleExpertly crafted from premium materials
      $617.40
    • (0 reviews)
      # mpn2451638
      Honda Civic Si Coupe / Sedan 2008, Alpha Series™ Stainless Steel Race Exhaust Header by Skunk2®. Increase the performance of your exhaust system with these Alpha Series headers. Designed to maximize exhaust flow, provide higher...
      Designed to maximize exhaust flowProvide higher torque and increased horsepower
      $463.99
    • (0 reviews)
      # 231143708
      Honda Civic Si 2008, 4-2-1 One Piece Exhaust Header by DC Sports®. OEM. Primary Tubing Diameter: 1.65". Collector Outlet Diameter: 3". Color: Silver. Header Style: Short Tube. Without Gasket. DC Sports 4-2-1 one-piece header...
      Dyno tuned and tested against the competition for maximum performanceOne-piece design reduces weight by eliminating middle flanges
      $328.13 - $429.53
    • (0 reviews)
      # 11019361
      Honda Civic Si 2008, 4-2-1 Race Exhaust Header by DC Sports®. OEM. Primary Tubing Diameter: 1.65". Collector Outlet Diameter: 2.5". Emissions: EPA compliant. Color: Silver. Header Style: Long Tube. Without Gasket. Whether you drag...
      Race headers eliminate catalytic converter for minumum restrictionDyno tuned and tested against the competition for maximum performance
      $401.22 - $477.80
    • (0 reviews)
      # 447986793
      Honda Civic Si 2008, T3 Divided Twin Scroll Turbo Exhaust Manifold by Blackworks Racing®. Blackworks Racing Turbo Manifolds are designed and manufactured in the USA! Made from High Quality Stainless Steel. Our Ramhorn Manifolds are...
      High quality at an affordable priceExpertly made from premium materials
      $899.00
    • (0 reviews)
      # 448155712
      Honda Civic Si 2008, T3 Open Turbo Exhaust Manifold by Blackworks Racing®. Blackworks Racing Turbo Manifolds are designed and manufactured in the USA! Made from High Quality Stainless Steel. Our Ramhorn Manifolds are Tig-Welded and...
      High quality at an affordable priceExpertly made from premium materials
      $799.00
    • (0 reviews)
      # 448138805
      Honda Civic Si 2008, T4 Lean Top Mount Divided Turbo Exhaust Manifold by Blackworks Racing®. Blackworks Racing Turbo Manifolds are designed and manufactured in the USA! Made from High Quality Stainless Steel. Our Ramhorn Manifolds...
      High quality at an affordable priceExpertly made from premium materials
      $899.00 - $949.00
    • (0 reviews)
      # mpn474124967
      Honda Civic Si 2008, 304 SS Round Exhaust Tip by AP Exhaust®. Tip Shape: Round. Tip Inlet Diameter: 2". Tip Attachment Style: Bolt-On. This superior product was carefully designed with key attention to detail and manufactured from...
      Made from first-rate materialsEnsures outstanding durability
      $34.33
    • (0 reviews)
      # mpn470446677
      Honda Civic Si Coupe 2008, 304 SS Mid-Pipe by Thermal R&D®. Material: 304 SS. Do you want to get more power out of your vehicle? Then this superior Thermal R&D product is just for you. Carefully designed for maximum performance, is...
      $302.33
    • (1 review)
      # mpn457999560
      Honda Civic Si Sedan 2008, Exhaust Adapter by GReddy®. Converts coupe se exhaust to work on the sedan. Today’s sophisticated tuners want it all, and GReddy’s SE exhaust systems deliver the full spectrum of features desired in a...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and racing lifestyle
      $57.00
    • (0 reviews)
      # 231143728
      Honda Civic Si 2008, Exhaust Manifold Flange by Vibrant Performance®. Do you want to get more power out of your vehicle? Then this superior Vibrant Performance product is just for you. Carefully designed for maximum performance, is...
      Made of High Quality MaterialsAvailable in different sizes
      $49.88 - $83.95
    • (0 reviews)
      # mpn458181353
      Honda Civic Si 2008, MLS Exhaust Header Gasket by Cometic Gasket®.
      Made of High Quality MaterialsBuilt to Last
      $20.75
    • (0 reviews)
      # mpn470669253
      Honda Civic Si 2008, Exhaust Header Flange by Blackworks Racing®. CNC machined 1/2" steel. Blackworks Racing now offers a full line of DIY performance parts to help all your fabrication needs. Our head flanges are CAD designed and...
      High quality at an affordable priceExpertly made from premium materials
      $49.99
    • (1 review)
      # 448067221
      Honda Civic Si 2008, Vibe-Lock Header Bolt Kit by Taylor Cable®. 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...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $27.14 - $52.55
    • (0 reviews)
      # mpn887188826
      Honda Civic Si 2008, Oxygen Sensor Wire Harness by Skunk2®. The O2 sensor wire harness extension is designed for Civic Si's. These extensions are great for installing an aftermarket header where the oem O2 sensor wires aren't long...
      Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle
      $61.99
    • (0 reviews)
      # mpn3051934595
      Honda Civic Si 2008, Ultra™ Catalytic Converter by Walker®. Emissions: EPA compliant. Converter Configuration: Direct Fit. Catalytic Converter Body Shape: Round. With O2 Sensor Port. Catalytic Converter Overall Length: 31"....
      Constructed to meet your vehicle’s specific emissions requirementsBody and pipe heat shields made of high quality materials for durability
      $207.48
    • (0 reviews)
      # mpn1909788967
      Honda Civic Si 2008, Catalytic Converter by Eastern®. Emissions: EPA compliant. Converter Configuration: Direct Fit. Position: Undercar. Catalytic Converter Overall Length: 30.3". If you need to replace your failed or damaged...
      Direct OEM replacementConverts harmful engine emissions to less dangerous gases and water vapor
      $231.20
    • (0 reviews)
      # mpn474117448
      Honda Civic Si 2008, 608 Series Catalytic Converter by AP Exhaust®. Emissions: EPA compliant. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Round. Without Air Tube. With 2 Opposed O2 Sensor Ports....
      A multitude of Universal converter bodies provided for maximum coverageProvides professional installer with immediate installation options
      $111.38
    • (0 reviews)
      # mpn474118319
      Honda Civic Si 2008, Catalytic Converter by AP Exhaust®. Emissions: EPA compliant. Converter Configuration: Direct Fit. Without Air Tube. With 1 O2 Sensor Port. Catalytic Converter Overall Length: 30.25". The growing concern for...
      5-year/50,000-mile warranty on converter body25,000-mile warranty on emissions
      $242.59
    • (0 reviews)
      # mpn470217046
      Honda Civic Si 2 Doors 2008, Exhaust Muffler by Ansa®. This premium part is essential for completing a professional exhaust installation. The key a well-functioning vehicle is about purchasing only premium quality parts and...
      Engineered to provide excellent exhaust system managementBuilt to the strict quality standards
      $118.23
    • (0 reviews)
      # mpn144916907
      Honda Civic Si Coupe 2008, Center Resonator Assembly by Bosal®. The product is constructed by one of the leading OE suppliers to provide OE-style performance and maintain a factory-like sound. The direct-fit configuration allows...
      Aluminized steel construction for maximum durabilityOne Piece interior to end cap construction to reduce flex and stand up to vehicle vibration
      $109.82
    • (0 reviews)
      # mpn470669232
      Honda Civic Si 2008, Racing Downpipe with 3" V-Band by Blackworks Racing®. With 3" V-Band. Blackworks Downpipes are Made from high quality Stainless steel, and Precision TIG Welded for quality. Our Downpipes are made from 3" OD...
      Less restrictive, internally shielded expansion bellows
      $359.00
    • (0 reviews)
      # mpn208755
      Honda Civic Si 2008, Exhaust Manifold Gasket by Beck Arnley®. For one hundred years, Beck/Arnley has been providing premium OE quality parts for vehicles. Beginning with motorcycle parts in 1914 and transitioning to import vehicles...
      OE quality products from top original equipmentTop quality materials
      $5.92
    • (0 reviews)
      # mpn1151262227
      Honda Civic Si VTEC Engine 2008, Exhaust Manifold Gasket Set by DNJ Engine Components®. Get this top-grade quality replacement for your worn out part from DNJ. Expertly crafted from premium materials, this product is of the finest...
      Designed to restore your vehicle's original performanceProvides superior sealing performance
      $6.76
    • (0 reviews)
      # mpn457857396
      Honda Civic Si 2008, G200™ Stainless Steel Cat-Back Exhaust System by Invidia®. Exhaust Type: Cat-Back. Exhaust Tubing Material: Stainless Steel. Main Tubing Diameter: 2.75". If performance is what you are seeking, the Invidia...
      Features a super-strength titanium tipMade to boost the performance of your vehicle
      $756.70
    • (1 review)
      # 285612371
      Universal 304 SS Chambered Round Mill Exhaust Muffler by Stainless Works®. Muffler Body Length: 30". Muffler Sound: Aggressive / Loud. Muffler Configuration: Center - Center. Stainless Works is the only manufacturer to build all of...
      Designed to meet strict quality standardsCarefully crafted from first-rate stainless steel
      $166.25
    • (1 review)
      # 285612429
      Universal 304 SS Rat Trap Mill Exhaust Muffler by Stainless Works®. Muffler Body Length: 24". Muffler Sound: Aggressive / Loud. Muffler Configuration: Center - Center. Stainless Works is the only manufacturer to build all of our...
      Designed to meet strict quality standardsCarefully crafted from first-rate stainless steel
      $147.25
    • (1 review)
      # 360335633
      Universal 304 SS Round Mill Exhaust Muffler by Stainless Works®. Muffler Overall Length: 5". Muffler Configuration: Center - Center. Stainless Works is the only manufacturer to build all of our mufflers with ALL s/s...
      Designed to meet strict quality standardsCarefully crafted from first-rate stainless steel
      $118.75 - $157.70
    • (1 review)
      # 285612569
      Universal 304 SS Round Vintage Mill Exhaust Muffler by Stainless Works®. Muffler Sound: Aggressive / Loud. Stainless Works is the only manufacturer to build all of our mufflers with ALL s/s construction-the bodies, cores, and...
      Designed to meet strict quality standardsCarefully crafted from first-rate stainless steel
      $147.25
    • (1 review)
      # 285612455
      Universal 304 SS Smooth Tube Mill Exhaust Muffler by Stainless Works®. Muffler Body Length: 24". Muffler Sound: Moderate. Muffler Configuration: Center - Center. Stainless Works is the only manufacturer to build all of our mufflers...
      Designed to meet strict quality standardsCarefully crafted from first-rate stainless steel
      $152.00
    • (1 review)
      # 285612487
      Universal 304 SS Turbo Chambered Exhaust Muffler by Stainless Works®. Muffler Body Length: 14". Muffler Overall Length: 18". Muffler Sound: Aggressive / Loud. Stainless Works is the only manufacturer to build all of our mufflers...
      Designed to meet strict quality standardsCarefully crafted from first-rate stainless steel
      $175.75
    • (1 review)
      # 285612526
      Universal 304 SS Turbo S-Tube Exhaust Muffler by Stainless Works®. Muffler Body Length: 14". Muffler Overall Length: 18". Muffler Sound: Aggressive / Loud. Muffler Structure: Turbo. Stainless Works is the only manufacturer to build...
      Designed to meet strict quality standardsCarefully crafted from first-rate stainless steel
      $175.75
    • (1 review)
      # 285612558
      Universal 304 SS Turn Down Mill Exhaust Muffler by Stainless Works®. Muffler Body Length: 24". Muffler Sound: Aggressive / Loud. Stainless Works is the only manufacturer to build all of our mufflers with ALL s/s construction-the...
      Designed to meet strict quality standardsCarefully crafted from first-rate stainless steel
      $147.25
    • (1 review)
      # 285612447
      Universal Smooth 304 SS Oval Mill Exhaust Muffler by Stainless Works®. Muffler Body Length: 24". Muffler Sound: Moderate. Muffler Configuration: Center - Center. Stainless Works is the only manufacturer to build all of our mufflers...
      Designed to meet strict quality standardsCarefully crafted from first-rate stainless steel
      $171.00
    • (0 reviews)
      # 91560812
      Universal Chrome Low-Line Lake Pipes by Patriot Exhaust®. Main Tubing Diameter: 2". Great for bringing back the custom car look some popular in the 50's and 60's. This product is made of high-quality materials to serve you for...
      The look of an expensive tuned header side pipe at a fraction of the costSide pipes come with built-in six sided louvered cored mufflers which absorb sound not horsepower
      $221.19 - $311.75
    • (0 reviews)
      # 389793730
      Universal Chrome Plated Lake Pipes by Patriot Exhaust®. Main Tubing Diameter: 3.5". Show quality chrome Lake Pipe 4 kits connect to headers or stock exhaust system with one functioning inlet tube and three dress-up tubes. A great...
      The look of an expensive tuned header side pipe at a fraction of the costSide pipes come with built-in six sided louvered cored mufflers which absorb sound not horsepower
      $347.76 - $476.42
    • (0 reviews)
      # 381402860
      Universal Mild Steel Chrome Shielded Side Exhaust System by Patriot Exhaust®. Exhaust Tubing Material: Mild Steel. Main Tubing Diameter: 2". Give your vehicle that custom look with our classic shielded side exhaust system. Large...
      Give your vehicle that custom look with our classic shielded side exhaust system with a show quality chrome finishLarge inlet and outlet pipes with low back pressure six-sided louvered core mufflers
      $262.33 - $301.71
    • (6 reviews)
      # 286167467
      Universal 200 Series Catalytic Converter by Flowmaster®. Emissions: EPA compliant. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Round. Without Air Tube. Without O2 Sensor Port. Without Heat Shield. The...
      Exceed all federal emission standardsStainless Steel shells
      $123.56 - $189.90
    • (6 reviews)
      # 286167469
      Universal 220 Series Catalytic Converter by Flowmaster®. Emissions: EPA compliant. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Oval. With Air Tube. Without O2 Sensor Port. The new Flowmaster replacement...
      Exceed all federal emission standardsStainless Steel shells
      $68.56
    • (6 reviews)
      # 286167474
      Universal 222 Series Catalytic Converter by Flowmaster®. Emissions: EPA compliant. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Round. Without Air Tube. Without O2 Sensor Port. The new Flowmaster...
      Exceed all federal emission standardsStainless Steel shells
      $66.82 - $67.53
    • (6 reviews)
      # 286167476
      Universal 223 Series Catalytic Converter by Flowmaster®. Emissions: EPA compliant. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Round. Without Air Tube. Without O2 Sensor Port. Without Heat Shield. The...
      Exceed all federal emission standardsStainless Steel shells
      $73.86
    • (6 reviews)
      # 286167479
      Universal 225 Series Catalytic Converter by Flowmaster®. Emissions: EPA compliant. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Oval. Without Air Tube. Without O2 Sensor Port. Includes: Heat Shield. The...
      Exceed all federal emission standardsStainless Steel shells
      $71.98 - $73.99
    • (6 reviews)
      # 286167480
      Universal 240 Series Catalytic Converter by Flowmaster®. Emissions: EPA compliant. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Oval. Without Air Tube. Without O2 Sensor Port. The new Flowmaster...
      Exceed all federal emission standardsStainless Steel shells
      $141.53 - $144.93




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    2008 Honda Civic Si Performance Exhaust Systems Reviews

    Average rating:  5  5 - 2 reviews
    4.8 of 5
    Improve The Look And Sound
    This JBA exhaust tip totally improved the look and sound of my car. It was just what i need and the look as described. Recommend it to anyone.
    TPosted by Tormod M (Olpe, KS) / November 21, 2016
    2011 Ford F-150
    Was this review helpful for you? Yes
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