1. Exhaust System Kits On Sale
  2. sku: 6880280356525753
  3. HKS 31021-BH004

HKS 31021-BH004 Legamax With/replacement

fits model: Civic. make: Honda.

31021-bh004 Hks Legamax Premium Compatible With/replacement For Honda Civic Sedan Fc

( Brand: Hks ), ( Manufacturer Part Number: 31021-BH004 ), ( Item Length: 64.000 )

Review HKS Legamax Premium Compatible With/replacement Honda Sedan Fc fits CIVIC

Introducing the HKS Legamax Pro Muffler, part number HKS 31021-BH004, specifically designed as a direct replacement for the stock muffler in Honda Civic FC models. This high-performance muffler is engineered by HKS, a renowned name in the automotive industry, known for its commitment to providing top-tier aftermarket performance parts.

The HKS Legamax Pro Muffler is crafted using premium stainless steel material, ensuring durability and longevity. Its sleek, compact design not only enhances the visual appeal of your Civic FC but also maintains a balanced exhaust flow for improved engine performance.

This muffler features a unique H-pipe design that ensures optimal scavenging of exhaust gases, reducing backpressure within the exhaust system. This results in increased power output and torque, making your Civic FC more responsive and agile.

One of the most notable features of the HKS Legamax Pro Muffler is its sound. It delivers a deep, throaty exhaust note, adding an exhilarating element to your driving experience. The muffler's design allows for a significant reduction in exhaust volume without sacrificing power or sound quality.

Installation of the HKS Legamax Pro Muffler is a straightforward process, thanks to its bolt-on design. It is a direct replacement for the stock muffler, requiring no modifications to the exhaust system. Additionally, the muffler comes with all necessary hardware for installation, making it a hassle-free upgrade for your Honda Civic FC.

In summary, the HKS Legamax Pro Muffler, HKS 31021-BH004, is a premium aftermarket muffler designed for Honda Civic FC models. It offers improved performance, enhanced sound quality, and a sleek, durable design. This muffler is an excellent choice for those seeking to elevate their driving experience with a high-quality, direct-fit upgrade.

The HKS Legamax exhaust system (part number 31021-bh004) is a popular aftermarket option for those looking to enhance the performance and exhaust note of their Honda Civic Type R (FC). Here are some pros and cons to consider before making a purchase:

Pros:

1. Enhanced Performance: The HKS Legamax exhaust system is designed to reduce back pressure and increase exhaust gas flow, resulting in improved engine performance.

2. Improved Exhaust Note: The system is known for its distinctive and aggressive exhaust note, which is a desirable feature for many car enthusiasts.

3. High-Quality Materials: HKS is a well-known brand in the automotive performance industry, and the Legamax exhaust system is made from high-quality materials, including stainless steel and titanium.

4. Durability: The system is designed to withstand the rigors of high-performance driving, making it a good investment for those who plan to modify their Civic Type R extensively.

Cons:

1. Cost: The HKS Legamax exhaust system is more expensive than some other aftermarket options, which may be a deterrent for some buyers.

2. Installation Complexity: The installation process for the HKS Legamax exhaust system can be more complex than some other systems, requiring the use of specialized tools and expertise.

3. Loudness: The system is quite loud, which may not be desirable for those who value a quieter ride.

4. Weight: The system is lighter than the stock exhaust system, but it is still heavier than some other aftermarket options, which could potentially impact handling.

Conclusion:

The HKS Legamax exhaust system is a high-quality, performance-enhancing option for those looking to modify their Honda Civic Type R. While it comes with some drawbacks, such as cost and complexity, the benefits, including improved performance and exhaust note, make it a worthwhile investment for many car enthusiasts. If you are willing to invest in the installation process and can afford the cost, the HKS Legamax exhaust system is a solid choice for your Honda Civic Type R.

part # 31021bh004 price

  • $1500.00

specifications frazzlekits:

  • for models: Civic
  • for makes: Honda
  • brand: Hks
  • manufacturer part number: 31021-BH004
  • item length: 64.000

shipping frazzlekits:

  • transit: 3-7 Days
  • cost: $0.00
  • class: Standard
  • service: Standard
  • type: Fixed

payments frazzlekits:

  • wallet: Apple-pay
  • credit card: Discover
  • other

offer frazzlekits:

  • sold: 0
  • availability: In Stock
  • options: Ship-to-home
  • started: August 27, 2025

seller frazzlekits:

  • rating: 96.8%
  • # reviews: 45079

general frazzlekits:

  • Car Truck Parts Accessories > Exhaust Emission Systems > Exhaust System Kits
  • condition: New

returns frazzlekits:

  • time: 30 Days
  • paid by: Seller
  • policy: Returns Accepted
for models: civic, for makes: honda, item length: 64.000,
category: auto parts > car truck parts accessories > exhaust emission systems > exhaust system kits, sku: 6880280356525753,

Hks 31021-BH004 Is Similar To:

frazzlekits logo
5 offers $1500.00–$1500.00 USD
  • Offer #1: $1500.00 price + free delivery = $1500.00* total. HKS LEGAMAX Premium HONDA CIVIC SEDAN FC.FREE SHIPPING
  • Offer #2: $1500.00 price + free delivery = $1500.00* total. Engineered and manufactured in Japan by HKS. Series: Legamax Premium.FREE SHIPPING
  • Offer #3: $1500.00 price + free delivery = $1500.00* total.FREE SHIPPING
  • Offer #4: $1499.00 price + free delivery = $1499.00* total. The HKS Legamax Premium Exhaust is a high-performance exhaust system designed specifically for the Honda Civic Sedan from 2016 to 2021.FREE SHIPPING
  • Offer #5: $1500.00 price + free delivery = $1500.00* total.FREE SHIPPING