18 inch

Unleash relentless low-frequency power in your vehicle. Shop high-performance 18-inch subwoofers engineered to handle massive wattage, sweep extreme amounts of air, and deliver maximum SPL.

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• Sky High Car Audio

  Sky High Car Audio FXXL Series 18 inch Subwoofer SHCA-FXXL-18v1

  $994.95Select options This product has multiple variants. The options may be chosen on the product page
• Sky High Car Audio

  Sky High Car Audio BMX Series 18 inch Subwoofer SHCA-BMX-18v1

  $544.95Select options This product has multiple variants. The options may be chosen on the product page
• SoundQubed

  SoundQubed HDX4.2 Series 18 inch Subwoofer 4 inch DVC SQ-HDX4.218

  $929.95Select options This product has multiple variants. The options may be chosen on the product page
• Sky High Car Audio

  Sky High Car Audio FMX Series 18 inch Subwoofer SHCA-FMX-18v1

  $794.95Select options This product has multiple variants. The options may be chosen on the product page
• Fi Car Audio

  Fi Car Audio 18 inch NEO 3.5 Subwoofer FI-SW-NEO35-18

  $799.95Select options This product has multiple variants. The options may be chosen on the product page
• Sky High Car Audio

  Sky High Car Audio FXB Series 18 inch Subwoofer SHCA-FXB-18v1

  $354.95Select options This product has multiple variants. The options may be chosen on the product page
• Resilient Sounds

  Resilient Sounds Platinum 18 inch V2 2500RMS Subwoofer

  $749.99Select options This product has multiple variants. The options may be chosen on the product page
• SoundQubed

  SoundQubed HDX4 18 inch Subwoofer Recone Kit SQ-SUB-RCN-HDX4-18

  $270.00Select options This product has multiple variants. The options may be chosen on the product page
• DS18

  DS18 CARBON18.2DRCK Recone Kit for High Excursion Subwoofer CARBON18.2D

  $499.95Add to cart
• DS18

  DS18 CARBON18.1DRCK Recone Kit for High Excursion Subwoofer CARBON18.1D

  $499.95Add to cart
• DS18

  DS18 CARBON18.2D 18″ High Excursion Subwoofer with Carbon Fiber Cone | 3500W RMS / 7000W Peak | Dual 2-Ohm Voice Coil

  $899.95Add to cart
• DS18

  DS18 CARBON18.1D 18″ High Excursion Subwoofer with Carbon Fiber Cone | 3500W RMS / 7000W Peak | Dual 1-Ohm Voice Coil

  $899.95Add to cart
• Sky High Car Audio

  Sky High Car Audio FXXL Series Subwoofer Recone

  $259.95 – $279.95Price range: $259.95 through $279.95Select options This product has multiple variants. The options may be chosen on the product page
• Sky High Car Audio

  Sky High Car Audio FMX Series Subwoofer Recone

  $129.95 – $259.95Price range: $129.95 through $259.95Select options This product has multiple variants. The options may be chosen on the product page
• Sky High Car Audio

  Sky High Car Audio BMX Series Subwoofer Recone Kit 6.5-18 inch D1 D2

  $79.95 – $239.95Price range: $79.95 through $239.95Select options This product has multiple variants. The options may be chosen on the product page
• Sky High Car Audio

  Sky High Car Audio FXB Series Subwoofer Recone

  $69.95 – $169.95Price range: $69.95 through $169.95Select options This product has multiple variants. The options may be chosen on the product page
• Sky High Car Audio

  Sky High Car Audio FE Series Subwoofer Recone

  $64.95 – $84.95Price range: $64.95 through $84.95Select options This product has multiple variants. The options may be chosen on the product page
• Sky High Car Audio

  Sky High Car Audio FEX Series 18 inch Subwoofer

  $289.95Select options This product has multiple variants. The options may be chosen on the product page
• Fi Car Audio

  Fi Car Audio 18 inch HC Series Subwoofer FI-SW-HC-18

  $699.95Select options This product has multiple variants. The options may be chosen on the product page
• Ruthless Audio

  Ruthless Audio 18 inch Subwoofer 3 inch Voice Coil RA-FER318

  $799.95Select options This product has multiple variants. The options may be chosen on the product page
• Ruthless Audio

  Ruthless Audio NEO 18 inch Subwoofer 4 inch Voice Coil RA-NEO418

  $1,399.95Select options This product has multiple variants. The options may be chosen on the product page
• Fi Car Audio

  Fi Car Audio 18 inch NEO 3.9 Subwoofer FI-SW-NEO39-18

  $999.95Select options This product has multiple variants. The options may be chosen on the product page
• Fi Car Audio

  Fi Car Audio 18 inch NEO 3.7 Subwoofer FI-SW-NEO37-18

  $899.95Select options This product has multiple variants. The options may be chosen on the product page
• Fi Car Audio

  Fi Car Audio 18 inch NEO 4.11 Subwoofer FI-SW-NEO411-18

  $1,299.95Select options This product has multiple variants. The options may be chosen on the product page
• Fi Car Audio

  Fi Car Audio 18 inch NEO 4.9 Subwoofer FI-SW-NEO49-18

  $1,199.95Select options This product has multiple variants. The options may be chosen on the product page
• Fi Car Audio

  Fi Car Audio 18 inch NEO 4.7 Subwoofer FI-SW-NEO47-18

  $1,099.95Select options This product has multiple variants. The options may be chosen on the product page
• Fi Car Audio

  Fi Car Audio 18 inch Xv4 Series Subwoofer FI-SW-Xv4-18

  $449.95Select options This product has multiple variants. The options may be chosen on the product page
• Fi Car Audio

  Fi Car Audio 18 inch MT Series Subwoofer FI-SW-MT-18

  $849.95Select options This product has multiple variants. The options may be chosen on the product page
• SoundQubed

  SoundQubed HDX3.2 Series 18 inch Subwoofer 3 inch DVC SQ-HDX3.218

  $639.95Select options This product has multiple variants. The options may be chosen on the product page
• Resilient Sounds

  Resilient Sounds GOLD 18 inch V2 1500RMS Subwoofer

  $499.99Select options This product has multiple variants. The options may be chosen on the product page