ACURA 346489 Tuned Exhaust Header Emissions Safe K20

( Manufacturer Part Number: 346489 ), ( Type: Exhaust Header ), ( Fuel Type: Gasoline ), ( Performance Part: Yes )

Review ACURA Tuned Exhaust And K20 Header Emissions Safe fits RSX

Introducing the Acura RSX Tuned Exhaust with K20 Header, an exceptional upgrade for your Acura Type-S model. This performance exhaust system is meticulously engineered to deliver increased power, enhanced sound, and improved emissions compliance with the latest automotive regulations.

The exhaust system starts with a high-flow K20 header that optimizes exhaust gas flow for improved engine performance. Crafted from premium stainless steel, this header reduces backpressure, allowing the engine to breathe more efficiently. The result is increased horsepower, torque, and a more responsive throttle.

Following the header, the tuned exhaust system features a series of high-performance exhaust components. Each component is designed to maximize exhaust flow while minimizing weight and maintaining a visually appealing appearance. The catalytic converter is emissions safe, ensuring that your vehicle remains compliant with local and federal emissions regulations.

The exhaust system's mid-pipe and rear section are also constructed from high-quality stainless steel. The mid-pipe features a large diameter design for optimal exhaust flow, while the rear section includes a high-flow muffler that delivers a deep, aggressive exhaust note without being overly loud.

The exhaust system's design not only enhances performance but also provides a stylish aesthetic upgrade for your RSX. The polished stainless steel finish gives the exhaust system an eye-catching appearance, making it a standout addition to your vehicle.

Installation of the Acura RSX Tuned Exhaust with K20 Header is relatively straightforward, with most installations taking only a few hours. The system includes all necessary hardware and detailed instructions to make the installation process as seamless as possible.

In summary, the Acura RSX Tuned Exhaust with K20 Header is an exceptional upgrade for your Acura Type-S. This performance exhaust system delivers increased power, enhanced sound, and improved emissions compliance, making it an excellent choice for those looking to take their RSX to the next level.

buying a tuned exhaust and K20 header for an Acura RSX (Model 346489) can be an intriguing modification for those looking to enhance the performance and sound of their vehicle. Here are some pros and cons to consider before making a decision.

1. Increased Power: A tuned exhaust system and K20 header can help improve the engine's performance by reducing backpressure and increasing exhaust flow. This can result in additional horsepower and torque, leading to better acceleration and overall driving experience.

2. Improved Sound: The primary reason many people opt for a tuned exhaust system is the enhanced exhaust note. A well-designed exhaust can provide a more pleasing and aggressive sound, making the driving experience more enjoyable.

3. Better Gas Mileage: In some instances, a tuned exhaust system can help improve fuel efficiency by reducing the weight of the exhaust system and improving the engine's combustion efficiency.

1. Cost: A tuned exhaust system and K20 header can be a costly modification, especially when purchasing from reputable manufacturers. The price tag may be a deterrent for some potential buyers.

2. Maintenance: A tuned exhaust system may require more frequent maintenance due to the increased exhaust flow and higher operating temperatures. This could include regular cleaning, inspection for rust, and potential replacement of exhaust components.

3. Emissions: A tuned exhaust system may not be emissions-compliant, which could potentially result in failed emissions tests or fines in certain jurisdictions.

Ultimately, the decision to buy a tuned exhaust system and K20 header for an Acura RSX (Model 346489) comes down to personal preferences and priorities. The modification offers improved performance, increased power, and a more pleasing exhaust note. However, it also comes with a higher cost, increased maintenance requirements, and potential emissions issues.

If you are a performance enthusiast looking for a significant power increase and an enhanced exhaust note, then this modification may be worth considering, even with the potential costs and maintenance requirements. On the other hand, if you prioritize low maintenance, fuel efficiency, and emissions compliance, then this modification may not be the best choice for you.

If you decide to pursue this modification, it is highly recommended that you purchase high-quality components from a reputable manufacturer. This will help ensure the best possible performance gains, improved sound quality, and reduced potential for issues. Additionally, consider having the exhaust system tuned by a professional to optimize the performance and emissions compliance of your vehicle.

Details:

DISCONTINUED RSX K20 Race Header 409 Series Stainless Steel KRH-RSX-409 K-Tuned 02-06 Types 3x22 Oval Cat-Back Exhaust System: The objective behind designing performance headers is to enhance the flow of exhaust gases from engine, resulting in increased power. Our 409 Series RSX Race Header is meticulously crafted using mandrel bent, series steel tubing, ensuring durability and longevity. The K-Tuned RSX Header was specifically developed with this principle in mind, employing a proven 4-2-1 Teri-Y design that incorporates smooth slip fit merge transitions. These features effectively enhance exhaust flow and power output for the Honda K engine.

We employ slightly thicker gauge tubing to facilitate superior weld penetration and augment overall strength. This header boasts stepped piping, commencing with 44mm primaries that gradually transition to 48mm and then 50mm secondaries, ultimately culminating in a 64mm or 2.5 exit. The secondary tubing effortlessly navigates through tight spaces, providing ample clearance for engine movement. To address this issue, we decided to take action.

Unlike solely benefiting the top end, Teri-Y design typically delivers power gains across entire band.

part #: 346489 prices

• $56.29-$112.83

specifications perfracp:

• for models: Rsx
• for makes: Acura
• mpn: 346489
• type: Exhaust Header
• fuel type: Gasoline
• performance part: Yes

payments perfracp:

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

shipping perfracp:

• service: USPS Priority Mail
• class: Expedited
• cost: $20.91
• carrier: USPS
• type: Calculated
• transit: 3-7 Days

general perfracp:

• condition: Used
• Parts Accessories > Permance Racing Parts > Other

seller perfracp:

• city: Newark, New York
• # reviews: 34
• rating: 90.0%

returns perfracp:

• policy: No Returns

offer perfracp:

• availability: In Stock
• sold: 0
• options: Ship-to-home
• quantity: 1
• best offers: True
• started: January 7, 2026

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