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  3. HKS 11999-AT002

HKS 11999-AT002 Extension Kit Catalytic S/toyota Brz/scion

fits model: Brz. make: Subaru, Scion, Toyota. year: 1986–2019.

11999-at002 Hks For 12-19 Subaru Brz/scion Fr-s/toyota 86 Extension Kit With Catalytic

( Brand: Hks ), ( Manufacturer Part Number: 11999-AT002 ), ( Type: Hks Extension Pipes ), ( Performance Part: Yes )

Review HKS For Subaru Brz/scion Fr-s/toyota Extension Kit Catalytic fits BRZ 1986–2019

HKS 11999-AT002 Extension Catalytic Converter for Subaru BRZ, Scion FR-S, and Toyota 86

The HKS 11999-AT002 is an extension catalytic converter specifically designed for the Subaru BRZ, Scion FR-S, and Toyota 86 model vehicles from 2012 to 19. This product is a must-have for those seeking to enhance their vehicle's exhaust system, improve performance, and ensure compliance with emission standards.

This high-performance extension catalytic converter is manufactured using advanced materials and technology to ensure optimal exhaust gas flow and efficient catalytic conversion. Its robust construction guarantees durability and longevity, making it an excellent investment for enthusiasts and everyday drivers alike.

The HKS 11999-AT002 is designed to fit seamlessly into the existing exhaust system, requiring no modifications or custom fabrication. It is a direct replacement for the original catalytic converter, ensuring a hassle-free installation process. With its compact and sleek design, this extension catalytic converter not only enhances performance but also maintains a visually appealing exhaust system.

The use of this extension catalytic converter allows for increased exhaust gas flow and superior scavenging capabilities. This results in improved engine response, increased power output, and a more responsive driving experience. The enhanced exhaust flow also contributes to a more pleasing exhaust note, adding to the overall driving enjoyment.

By incorporating the latest catalytic converter technology, the HKS 11999-AT002 effectively reduces harmful exhaust emissions while maintaining peak performance. This ensures that your vehicle remains emission compliant, making it an ideal choice for those who want to enjoy improved performance without compromising on environmental considerations.

In conclusion, the HKS 11999-AT002 Extension Catalytic Converter is a high-performance aftermarket component designed to deliver improved engine response, increased power output, and a more enjoyable driving experience, all while maintaining emission compliance for the Subaru BRZ, Scion FR-S, and Toyota 86 model vehicles from 2012 to 19.

The HKS 11999-AT002 is an aftermarket catalytic converter extension kit designed for the Subaru BRZ, Scion FR-S, and Toyota 86. This kit is meant to replace the stock catalytic converter and provide better performance by increasing exhaust flow and reducing back pressure. Let's discuss the potential pros and cons of purchasing this product.

Pros:

1. Increased Power: The HKS catalytic converter extension kit is designed to improve exhaust flow, which can result in increased power and torque.

2. Improved Throttle Response: By reducing back pressure, this kit can help improve throttle response, making the vehicle feel more responsive when accelerating.

3. Better Sound: The HKS catalytic converter extension kit may also provide a better exhaust note, as it allows for more exhaust gases to flow freely.

Cons:

1. Cost: The HKS catalytic converter extension kit is a premium aftermarket product, and it comes with a premium price tag.

2. Emissions: This kit does not meet emissions requirements for most areas, which means it may not be legal for use on the road in some places.

3. Installation: Installing the HKS catalytic converter extension kit can be a complex process, and it may require professional installation to ensure proper fitment and function.

Conclusion:

The HKS 11999-AT002 catalytic converter extension kit can provide noticeable performance gains for the Subaru BRZ, Scion FR-S, and Toyota 86, but it comes with some drawbacks. The high cost, lack of emissions compliance, and complicated installation process may not be worth it for some buyers. If you're looking for a significant power increase and don't mind the potential drawbacks, then this kit may be worth considering. However, if you're looking for a more affordable and practical modification, there may be other options available to you. Ultimately, the decision to purchase the HKS catalytic converter extension kit depends on your personal preferences, budget, and priorities.

Details:

HKS 12-19 Subaru BRZ/Scion FR-S/Toyota 86 Extension Kit w/ Catalytic Converter. Manufacturer: HKS.

part #: 11999at002 prices

  • $939.00-$940.00

specifications reppchargers:

  • for models: Brz
  • for makes: Subaru, Scion, Toyota
  • for years: 1986-2019
  • brand: Hks
  • mpn: 11999-at002
  • type: Hks Extension Pipes
  • performance part: Yes

shipping reppchargers:

  • transit: 5-8 Days
  • class: Standard
  • type: Fixed
  • cost: $0.00
  • service: Standard

offer reppchargers:

  • started: December 21, 2025
  • quantity: 1
  • availability: In Stock
  • options: Ship-to-home
  • sold: 0

returns reppchargers:

  • policy: Returns Accepted
  • paid by: Seller
  • time: 30 Days

payments reppchargers:

  • other
  • credit card: Diners-club
  • wallet: Paypal

general reppchargers:

  • Air Fuel Delivery > Turbos, Superchargers Intercoolers > Superchargers Parts
  • condition: New

seller reppchargers:

  • # reviews: 117123
  • rating: 99.8%
  • city: San Leandro, California
for models: brz, for makes: subaru, scion, toyota, for years: 1986-2019, type: hks extension pipes, performance part: yes,
category: auto parts > air fuel delivery > turbos, superchargers intercoolers > superchargers parts, sku: 3661240893935632,

Hks 11999-AT002 Is Similar To:

reppchargers logo
5 offers $939.00–$940.00 USD
  • Offer #1: $939.00 price + $0.00 shipping estimate = $939.00* total. Constructed with high-quality materials, the extension kit enhances overall performance and durability, making it suitable for enthusiasts seeking precise exhaust tuning. The HKS Extension Kit with Cat for the Toyota 86, Subaru BRZ, and Scion FR-S is an exhaust component designed to optimize flow and boost response.FREE SHIPPING
  • Offer #2: $940.00 price + $0.00 shipping estimate = $940.00* total. HKS 12-19 Subaru BRZ/Scion FR-S/Toyota 86 Extension Kit w/ Catalytic Converter Manufacturer: HKS.FREE SHIPPING
  • Offer #3: $940.00 price + $0.00 shipping estimate = $940.00* total. Design: Extension with catalytic converter for turbo exhaust flange. The stainless steel construction and included heat shield ensure durability and manage under hood heat under demanding turbo conditions.FREE SHIPPING
  • Offer #4: $939.00 price + $0.00 shipping estimate = $939.00* total.FREE SHIPPING
  • Offer #5: $946.99 price + $0.00 shipping estimate = $946.99* total.FREE SHIPPING

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