
( Brand: Kooks Custom Headers ), ( Manufacturer Part Number: 21803400 ), ( Additional Parts Required: Yes ), ( Application: Automotive ), ( Clamps Included: No ), ( Color: Stainless Steel ), ( Grade Type: Performance ), ( Inlet Outside Diameter: 3.000 In. ), ( Material: 304 Stainless Steel ), ( Outlet Outside Diameter: Oem ), ( Shape: Straight ), ( Country Of Origin: United States ), ( UPC: 842422181185 )
Review KOOKS CUSTOM HEADERS Inch High Output Green Catted Oem Connections.
Introducing the Kooks Headers 21803400, a high-performance solution for your exhaust system needs. This header is specifically designed for those seeking optimal engine performance and improved exhaust flow. Solidly built with high-quality materials, the Kooks Header possesses a durability that ensures reliable service for an extended period.
The Kooks Header features a 1.75-inch primary tube diameter, which allows for increased exhaust velocity. This in turn enhances the engine's breathing capabilities, ultimately leading to more power and improved throttle response. This model comes with high-flow catalytic converters that are CARB legal, making it an excellent choice for those seeking legal performance modifications.
With a "H-pipe" design, the header minimizes exhaust backpressure and optimizes exhaust gas scavenging, ensuring that exhaust gases exit the engine as efficiently as possible. This leads to increased horsepower and torque production. Moreover, the header's design allows for a smoother and quieter exhaust note, improving the overall driving experience.
Manufactured with a 304 stainless steel construction, the Kooks Header is resilient against corrosion and rust. This material provides excellent strength, durability, and resistance to the harsh conditions of an exhaust system. The header also boasts a mandrel bent design, ensuring consistent tube diameter throughout its entire length for optimal exhaust flow.
Adding the Kooks Header 21803400 to your vehicle is a straightforward process. It comes complete with high-catted connections and gaskets, simplifying the installation process for you. And, because it's specifically designed for a wide range of applications, you can be confident that it's the correct header for your vehicle.
In conclusion, with its superior flow characteristics, durability, and CARB legality, the Kooks Header 21803400 offers an upgraded exhaust system that delivers increased power, improved throttle response, and a better driving experience. Say goodbye to restrictive factory exhaust systems and upgrade to the high-performance Kooks Header today.
Kooks 21803400 High Catted Headers: Pros and Cons
Kooks Headers is a well-known brand in the automotive community, known for manufacturing top-quality performance exhaust components. One of their popular products is the Kooks 21803400 High Catted Headers. These headers offer several benefits for performance enthusiasts, but they also come with some potential drawbacks. Let's take a closer look at the pros and cons of buying these headers.
Pros:1. Enhanced Performance: Kooks Headers are designed to improve engine performance by reducing backpressure and increasing exhaust flow. This results in quicker acceleration, increased horsepower, and torque.
2. High-Quality Construction: Kooks Headers are manufactured using premium materials, such as 304 stainless steel, to ensure durability and longevity. They feature sealed welds and four-bolt flanges for a secure fitment and leak-free operation.
3. Catted Design: These headers come with catalytic converters built-in, making them legal for use in all 50 states. This is ideal for those who want to maintain their emissions compliance while enjoying the performance benefits of headers.
Cons:1. Expensive: Kooks Headers are not an inexpensive upgrade. The cost for these headers can range from $1,300 to $1,700, depending on the application. This price tag may be a deterrent for some enthusiasts.
2. Difficult Installation: Installing headers can be a complex and time-consuming process. It requires specific tools, experience, and knowledge of the vehicle's engine and exhaust system. Many enthusiasts prefer to have their headers installed by a professional to ensure proper fitment and optimal performance.
3. Heat Management: Headers can generate significant heat, particularly during high-performance driving. Proper heat management is crucial to prevent damage to various components under the hood, such as wiring harnesses, sensors, and the engine itself. Installing header wrap or insulation is recommended to maintain adequate temperatures.
Conclusion:In conclusion, Kooks 21803400 High Catted Headers offer several benefits for performance enthusiasts, such as enhanced performance, high-quality construction, and emissions compliance. However, they come with potential drawbacks, such as a high price tag, complicated installation process, and heat management concerns.
If you are an experienced enthusiast with the necessary tools, knowledge, and resources to install the headers yourself and manage the generated heat, they could be an excellent investment for your vehicle. Alternatively, if you are budget-conscious or unfamiliar with the installation process, you may want to consider alternative performance modifications or opt for less expensive headers without catalytic converters.
Recommendation:Based on the pros and cons presented above, we recommend Kooks 21803400 High Catted Headers for enthusiasts who prioritize performance and emissions compliance, have a good understanding of their vehicle's engine and exhaust system, and have the necessary budget and resources for installation and heat management.
part # 21803400 price
- $3981.65
specifications catalyticonvo:
- brand: Kooks Custom Headers
- manufacturer part number: 21803400
- additional parts required: Yes
- application: Automotive
- clamps included: No
- color: Stainless Steel
- grade type: Performance
- inlet outside diameter: 3.000 In.
- material: 304 Stainless Steel
- outlet outside diameter: Oem
- shape: Straight
- country of origin: United States
- upc: 842422181185
returns catalyticonvo:
- paid by: Seller
- time: 30 Days
- policy: Returns Accepted
seller catalyticonvo:
- # reviews: 531
- rating: 99.7%
general catalyticonvo:
- Car Truck Parts Accessories > Exhaust Emission Systems > Catalytic Converters
- condition: New
payments catalyticonvo:
- other
- credit card: Discover
- wallet: Apple-pay
offer catalyticonvo:
- options: Ship-to-home
- availability: In Stock
- quantity: 2
- started: January 14, 2025
- sold: 0
shipping catalyticonvo:
- transit: 2-7 Days
- carrier: FedEx
- cost: $0.00
- service: FedEx Ground or FedEx Home Delivery
- type: Fixed
- class: Standard
Kooks Custom Headers 21803400 Is Similar To:
- Kooks Headers Ge-90148 (30.5% similar) $474.89–$526.95. (January 5th, 2025)
- Kooks Headers Ge-90147 For 3 Inch Green High Flow Catalytic Converter (52.6% similar) $288.00–$392.89. (January 26th, 2025)
- Kooks Headers 657896300587 Universal 3in Ball And Socket Exhstpipe Ksh7106s-female (35.2% similar) $58.94–$246.95. (March 16th, 2025)
- Kooks Kok-ge-307540 High Flow Rate Catalytic Converter (43.8% similar) $800.00. (August 24th, 2025)
- Kooks 16234 2020-2025 C8 Corvette High Flow Catalytic Converters (39.5% similar) $1300.00. (February 11th, 2026)
- Kooks Headers Ge-90150 3in H.o. Green Cats Catalytic Converter (52.4% similar) $743.95–$784.95. (May 3rd, 2026)
- Kooks Custom Headers 21803300-ac Catalytic Converter For 2020-2023 Chevrolet Corvette Stingr (49.1% similar) $3088.99–$3466.14. (May 27th, 2026)