• Milltek HJS High-Flow Sports Cat | Mercedes A45 AMG 2.0 Turbo (W176)
  • Milltek HJS High-Flow Sports Cat | Mercedes A45 AMG 2.0 Turbo (W176)

Milltek HJS High-Flow Sports Cat | Mercedes A45 AMG 2.0 Turbo (W176)

$3,510.67
$3,510.67
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Milltek distributes HJS Tuning cast downpipes and high-flow sports catalysts engineered to improve gas-flow and heat management while maintaining emission regulations for street use. The HJS High-Flow Sports Catalyst features 200-cell construction versus OEM's 500–600 cells, delivering measurable efficiency and performance gains without compromise.

Cast construction and mandrel-bent piping reduce backpressure and improve scavenging. All systems are designed for direct factory fitment using OEM hangers and hangers, requiring no modification to your vehicle.

Product Details

  • HJS Tuning high-flow sports catalyst (200-cell design)
  • Cast downpipe construction for improved flow characteristics
  • Direct factory fitment with OEM hangers
  • Maintains street-legal emission compliance
  • UK engineered and manufactured

Designed and manufactured in the UK with 40+ years of performance exhaust heritage. Tested at the Nurburgring.

Milltek HJS High-Flow Sports Cat | Mercedes A45 AMG 2.0 Turbo (W176)

$3,510.67

  • Fast shipping

    Ordered a product and it arrived the next day. Super impressed with the speed and the careful packaging.

    Jordan Smith
    Seattle, Washington

  • Excellent service

    Customer support was helpful; they resolved my issue in minutes. Really appreciated the follow-up email to ensure satisfaction.

    Taylor Christos
    Austin, Texas

  • Great selection

    Wide variety of products across the range. Found everything I needed in one place, very convenient.

    Alex Williams
    London, England

  • Top quality

    The product I bought exceeded my expectations. Top-notch quality, thoughtful design, and it came beautifully packaged.

    Sam Davis
    San Francisco, California

  • Reliable store

    Have ordered multiple times, always received exactly what was described. Products are genuine and fully functional.

    Casey Brown
    Denver, Colorado

  • User-friendly website

    Easy to navigate and make purchases. A hassle-free shopping experience with clear descriptions and transparent pricing.

    Riley Wilson
    Boston, Massachusetts

  • Smooth checkout

    Checkout was quick and straightforward. My order confirmation came through instantly, and everything arrived exactly as expected.

    Morgan Lee
    Portland, Oregon

  • Great value

    Really pleased with the quality for the price. The product felt premium, worked perfectly out of the box, and was well packaged.

    Jamie Carter
    Manchester, England

Can I return a part after it has been installed?

Generally, installed or used performance parts cannot be returned. We strongly recommend verifying vehicle fitment and inspecting the product before installation.

Can I cancel my order after it has been placed?

We begin processing orders as quickly as possible. If you need to cancel, contact us immediately. Once an order has entered fulfillment, been submitted to a supplier, or shipped, cancellation may no longer be possible.

Will this part fit my vehicle?

Fitment varies by year, make, model, trim, engine, and drivetrain. Use our vehicle fitment information to confirm compatibility. If you're unsure, contact us with your VIN and we'll help verify fitment before you order.

How do I know if this is the right upgrade for my build?

Not every upgrade makes sense for every vehicle or build. Tell us your vehicle, current modifications, and performance goals, and we'll help determine whether this product is a good fit.

Are the products you sell authentic?

Yes. We source products through established manufacturers and authorized distribution channels. We do not sell counterfeit or imitation performance parts.

Is professional installation recommended?

For most performance components, yes. Proper installation is critical for fitment, reliability, and performance. Some products may also require specialized tools, programming, tuning, or additional supporting modifications.