2004 Honda Civic Si Exhaust Systems

Honda Civic Si Exhaust - 2004
Select Your Submodel
1.7L
2.0L
  • MagnaFlow® - Street Series™ Stainless Steel Cat-Back Exhaust System with Dual Rear Exit
    MagnaFlow®Street Series™ Stainless Steel Cat-Back Exhaust System with Dual Rear Exit
    42
    # mpn5082585609
    Honda Civic Si Hatchback 2004, Street Series™ Stainless Steel Cat-Back Exhaust System with Dual Rear Exit by MagnaFlow®. Exhaust System Type: Cat-Back. Exhaust Tubing Material: Stainless Steel. Main Tubing Diameter: 2.25". Exhaust...
    $699.00
  • TruParts® - Exhaust Muffler
    TruParts®Exhaust Muffler
    0
    # 4001633514
    Honda Civic Si Hatchback 2004, Exhaust Muffler by TruParts®. Go with this high-quality product to restore your vehicle’s lost power and bring it back to its optimal condition. Made from the finest materials in compliance with rigorous...
    Made utilizing the finest materials and equipmentEngineered to restore your vehicle to its pristine condition
    $65.25 - $92.94
  • MagnaFlow® - OBDII Direct Fit Catalytic Converter
    MagnaFlow®OBDII Direct Fit Catalytic Converter
    10
    # 3804195305
    Honda Civic Si / Civic SiR 2.0L Engine Family # 4HNXV02.0XKC with LEV Standard / LEV2 Standard 2004, OBDII Catalytic Converter by MagnaFlow®. Converter Configuration: Direct Fit. If your car needs replacement, install one that will get...
    $1,136.00
  • Torxe™ - Stainless Steel Cat-Back Exhaust System with Single Rear Exit
    Torxe™Stainless Steel Cat-Back Exhaust System with Single Rear Exit
    56
    # 2356080147
    Honda Civic Si 2004, Stainless Steel Cat-Back Exhaust System with Single Rear Exit by Torxe™. Exhaust System Type: Cat-Back. Exhaust Tubing Material: Stainless Steel. Exhaust System Sound: Aggressive / Loud. Increase your exhaust flow...
    $215.00 - $235.00
  • Walker® - CalCat™ Direct Fit Round Body Catalytic Converter
    Walker®CalCat™ Direct Fit Round Body Catalytic Converter
    3
    # 1728520811
    Honda Civic Si / Civic SiR 2.0L Engine Family # 4HNXV02.0XKC 2004, CalCat™ Catalytic Converter by Walker®. Converter Configuration: Direct Fit. Catalytic Converter Body Shape: Round. Walker is an OE supplier to many major nameplate...
    $927.92 - $1,126.68
  • Davico® - Direct Fit Catalytic Converter
    Davico®Direct Fit Catalytic Converter
    3
    # 83038504
    Honda Civic Si 2.0L 2004, Catalytic Converter by Davico®. Converter Configuration: Direct Fit. Position: Front. Catalytic Converter Overall Length: 26.5". This direct-fit catalytic converter by Davico will be a great solution to replace...
    $357.08 - $558.72
  • TruParts® - Exhaust Pipe Flange Gasket
    TruParts®Exhaust Pipe Flange Gasket
    0
    # mpn4759233264
    Honda Civic Si Hatchback with California Emission / Federal Emission 2004, Exhaust Pipe Flange Gasket by TruParts®. Position: Center. Go with this high-quality product to restore your vehicle’s lost power and bring it back to its...
    Made utilizing the finest materials and equipmentEngineered to restore your vehicle to its pristine condition
    $1.83
  • Walker® - Ultra™ Direct Fit Round Body Catalytic Converter
    Walker®Ultra™ Direct Fit Round Body Catalytic Converter
    2
    # 1728422747
    Honda Civic Si / Civic SiR 2.0L 2004, Ultra™ Catalytic Converter by Walker®. Converter Configuration: Direct Fit. Catalytic Converter Body Shape: Round. With 1 Inlet. With O2 Sensor Port. Catalytic Converter Overall Length: 25"....
    $523.89
  • TruParts® - Exhaust System Hanger
    TruParts®Exhaust System Hanger
    0
    # mpn4759233284
    Honda Civic Si Hatchback with California Emission / Federal Emission 2004, Exhaust System Hanger by TruParts®. Position: Front. Go with this high-quality product to restore your vehicle’s lost power and bring it back to its optimal...
    Made utilizing the finest materials and equipmentEngineered to restore your vehicle to its pristine condition
    $1.98
  • Invidia® - N1™ Stainless Steel Cat-Back Exhaust System with Single Rear Exit
    Invidia®N1™ Stainless Steel Cat-Back Exhaust System with Single Rear Exit
    16
    # 1119770632
    Honda Civic Si 2004, N1™ Stainless Steel Cat-Back Exhaust System with Single Rear Exit by Invidia®. Exhaust System Type: Cat-Back. Exhaust Tubing Material: Stainless Steel. Main Tubing Diameter: 2.36". Exhaust System Sound: Moderate....
    $595.00
  • Eastern Catalytic® - ECO II Direct Fit Catalytic Converter
    Eastern Catalytic®ECO II Direct Fit Catalytic Converter
    2
    # 3804231251
    Honda Civic Si 2.0L 2004, ECO II Catalytic Converter by Eastern Catalytic®. Converter Configuration: Direct Fit. Location: Undercar. With 2 O2 Sensor Ports. Catalytic Converter Overall Length: 27". If you need to replace your failed or...
    $489.38
  • MagnaFlow® - Heavy Metal Direct Fit Catalytic Converter
    MagnaFlow®Heavy Metal Direct Fit Catalytic Converter
    10
    # 3803971028
    Honda Civic Si / Civic SiR 2.0L 2004, Heavy Metal Catalytic Converter by MagnaFlow®. Converter Configuration: Direct Fit. With Gaskets. Without Air Tube. Catalytic Converter Overall Length: 26". If your car needs replacement, install...
    $559.00
  • Walker® - Replacement Exhaust Kit
    Walker®Replacement Exhaust Kit
    4
    # 482550275
    Honda Civic Si / Civic SiR 2.0L 2004, Replacement Exhaust Kit by Walker®. If you are looking for the ultimate in quality and value, then this superior replacement exhaust kit by Walker is what you need. All its components are designed...
    Mufflers and Resonators Designed for OE equivalent sound and precision fitOE-style louvered tube technology for a premium, factory-like sound
    $121.28 - $523.89
  • MagnaFlow® - OEM Grade Direct Fit Catalytic Converter
    MagnaFlow®OEM Grade Direct Fit Catalytic Converter
    4
    # 3804307245
    Honda Civic Si / Civic SiR 2.0L 2004, OEM Grade Catalytic Converter by MagnaFlow®. Converter Configuration: Direct Fit. With Gaskets. Without Air Tube. Catalytic Converter Overall Length: 26". If your car needs replacement, install one...
    $586.00
  • MagnaFlow® - Heavy Metal Universal Fit Round Body Catalytic Converter
    MagnaFlow®Heavy Metal Universal Fit Round Body Catalytic Converter
    2
    # 3804170365
    Honda Civic Si / Civic SiR 2.0L 2004, Heavy Metal Catalytic Converter by MagnaFlow®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Round. Without Air Tube. With Midbed O2 Sensor Port. Catalytic Converter...
    $188.00
  • MagnaFlow® - OBDII Universal Fit Round Body Catalytic Converter
    MagnaFlow®OBDII Universal Fit Round Body Catalytic Converter
    1
    # 3804181364
    Honda Civic Si / Civic SiR 2.0L Engine Family # 4HNXV02.0XKC with LEV Standard / LEV2 Standard 2004, OBDII Catalytic Converter by MagnaFlow®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Round. Without Air...
    $1,095.00
  • MagnaFlow® - OEM Grade Universal Fit Round Body Catalytic Converter
    MagnaFlow®OEM Grade Universal Fit Round Body Catalytic Converter
    1
    # 3804214250
    Honda Civic Si / Civic SiR 2.0L 2004, OEM Grade Catalytic Converter by MagnaFlow®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Round. Without Air Tube. With Midbed O2 Sensor Port. Catalytic Converter Overall...
    $202.00
  • Walker® - Ultra™ Universal Fit Round Body Catalytic Converter
    Walker®Ultra™ Universal Fit Round Body Catalytic Converter
    2
    # 1728574942
    Honda Civic Si / Civic SiR 2.0L 2004, Ultra™ Catalytic Converter by Walker®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Round. With 1 Inlet. Without Air Tube. With O2 Sensor Port. Catalytic Converter...
    $121.28 - $151.11
  • Walker® - CalCat™ Universal Fit Round Body Catalytic Converter
    Walker®CalCat™ Universal Fit Round Body Catalytic Converter
    1
    # 3804288354
    Honda Civic Si / Civic SiR 2.0L Engine Family # 4HNXV02.0XKC 2004, CalCat™ Catalytic Converter by Walker®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Round. Specifically designed to comply with the...
    $532.02 - $698.74
  • Flowmaster® - 40 Series Delta Flow™ Aluminized Steel Oval Black Exhaust Muffler
    Flowmaster®40 Series Delta Flow™ Aluminized Steel Oval Black Exhaust Muffler
    0
    # mpn4498130637
    Honda Civic Si 1.7L 2004, 40 Series Delta Flow™ Aluminized Steel Oval Black Exhaust Muffler by Flowmaster®. Without Hangers. Muffler Inlet Diameter: 2". Muffler Outlet Diameter: 2". Muffler Body Length: 13". Muffler Overall Length:...
    $133.95
  • Flowmaster® - 50 Series Delta Flow™ Aluminized Steel Oval Black Exhaust Muffler
    Flowmaster®50 Series Delta Flow™ Aluminized Steel Oval Black Exhaust Muffler
    1
    # mpn4498129565
    Honda Civic Si / Civic SiR 2004, 50 Series Delta Flow™ Aluminized Steel Oval Black Exhaust Muffler by Flowmaster®. Without Hangers. Muffler Inlet Diameter: 2". Muffler Outlet Diameter: 2". Muffler Body Length: 17". Muffler Overall...
    $153.95
  • BRExhaust® - Rear Exhaust Muffler
    BRExhaust®Rear Exhaust Muffler
    9
    # mpn4632727534
    Honda Civic Si / Civic SiR 2.0L United Kingdom Built 2004, Rear Exhaust Muffler by BRExhaust®. This product is constructed by one of the leading OE suppliers to provide OE-style performance and maintain a factory-like sound. The...
    Aluminized steel construction for maximum durabilityOne Piece interior to end cap construction to reduce flex and stand up to vehicle vibration
    $150.74
  • HJS® - Exhaust Pipe Connector Gasket
    HJS®Exhaust Pipe Connector Gasket
    0
    # mpn4648908832
    Honda Civic Si / Civic SiR 2.0L 2004, Exhaust Pipe Connector Gasket by HJS®. 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...
    High quality at an affordable priceExpertly made from premium materials
    $20.83
  • Revel® - Medallion Touring-S™ Stainless Steel Cat-Back Exhaust System with Single Rear Exit
    Revel®Medallion Touring-S™ Stainless Steel Cat-Back Exhaust System with Single Rear Exit
    0
    # mpn5103116306
    Honda Civic Si Hatchback 2004, Medallion Touring-S™ Stainless Steel Cat-Back Exhaust System with Single Rear Exit by Revel®. Exhaust System Type: Cat-Back. Exhaust Tubing Material: Stainless Steel. Exhaust System Sound: Aggressive /...
    $845.50
  • Davico® - Universal Fit Catalytic Converter
    Davico®Universal Fit Catalytic Converter
    0
    # mpn5079679717
    Honda Civic Si / Civic SiR 2.0L 2004, Catalytic Converter by Davico®. Converter Configuration: Universal Fit. Position: Rear. Catalytic Inlet Diameter: 2". Catalytic Converter Overall Length: 15". This Universal fit catalytic converter...
    $123.60
  • Genuine® - Exhaust Manifold
    Genuine®Exhaust Manifold
    0
    # mpn4587364231
    Honda Civic Si 2004, Exhaust Manifold by Genuine®. If your exhaust parts are in need of repair, don’t compromise the performance and safety of your car with suspect, off-brand replacement parts from the local auto parts chain store....
    Designed to restore your vehicle’s exhaust systemGenuine OE replacement parts from the OE manufacturer
    $608.62
  • Vibrant Performance® - Exhaust Manifold Flange
    Vibrant Performance®Exhaust Manifold Flange
    0
    # 231143670
    Honda Civic Si 2004, 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 will...
    Port sizing is optimized for use with standard wall round tubingMade of High Quality Materials
    $52.99 - $72.99
  • Walker® - Exhaust Pipe Flange Gasket
    Walker®Exhaust Pipe Flange Gasket
    1
    # 505763500
    Honda Civic Si / Civic SiR 2.0L 2004, Exhaust Pipe Flange Gasket 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...
    Makes installation quick and easyOptimal OE-style fit and quality
    $6.21 - $12.41
  • Fel-Pro® - Exhaust Pipe Flange Gasket
    Fel-Pro®Exhaust Pipe Flange Gasket
    0
    # 19068473
    Honda Civic Si / Civic SiR 2.0L 2004, Exhaust Pipe Flange Gasket 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...
    Direct OEM replacement for a proper fitEnsures reliable sealing performance
    $3.77 - $18.57




Shop By Service Type

2004 Honda Civic Si Exhaust Reviews

5 reviews
Was a bit hesitant on buying this but was well worth it, it delivered on time and fit perfectly it also gives my old truck a nasty growl. I definitely recommend this item.
Posted by Robert (Monroe, WI) / November 20, 20222000 Dodge Dakota
CONTACTS
CUSTOMER SERVICE
INFORMATION
CARiD FacebookCARiD XCARiD YouTube ChannelCARiD PinterestCARiD Instagram
All manufacturer names, symbols, and descriptions, used in our images and text are used solely for identification purposes only. It is neither inferred nor implied that any item sold by CARiD.com is a product authorized by or in any way connected with any vehicle manufacturers displayed on this page.