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Upgrade your Nissan GT-R with the HKS 09+ GTR Flux Welded Legamax Premium Exhaust, part number hks31021-KN001. Designed for optimal performance and durability, this exhaust system features flux-welded construction to ensure superior strength and a precise fit. Crafted by HKS, a trusted name in automotive performance, this exhaust enhances your vehicle's exhaust flow, resulting in improved horsepower, torque, and a more aggressive sound. The system is engineered to meet strict emission standards and includes necessary documentation for CARB acknowledgment, making it suitable for street use in compliant regions. Constructed with high-quality materials, the flux welding process maximizes durability and ensures long-lasting performance even under demanding driving conditions. This exhaust system is suitable for enthusiasts seeking a balance of performance, sound, and reliability, and it is designed to seamlessly integrate with your Nissan GT-R's existing exhaust setup. Easy to install with a professional or experienced DIYer, the Legamax Premium Exhaust offers a significant upgrade over stock systems, providing a more exhilarating driving experience. Whether you're looking to enhance your vehicle's sound profile or boost engine efficiency, this exhaust system is an excellent choice for your Nissan GT-R build.
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Order Processing
All orders are processed and shipped within 24 hours of purchase (excluding weekends and holidays).
Orders placed after 3:00 PM EST may ship the following business day.
Shipping Methods
Customers select their preferred shipping method and speed at checkout.
Shipping times are determined by the carrier and cannot be guaranteed by us.
Tracking information will be provided once your order has shipped.
Shipping Coverage
If your package arrives damaged, please notify the delivery driver immediately and contact the shipping carrier to file a claim.
You must report any missing or damaged items within 14 days of delivery.
After this time, we cannot be held responsible for lost or damaged items.
Return Window
You have 30 days from the date of delivery to request a return.
After 30 days, we are unable to accept returns, exchanges, or refund requests.
Eligibility
Items must be returned in their original condition—unused, unwashed, and with all tags and packaging intact.
Certain products may not be eligible for return (e.g., special-order items, customized products, or perishable goods).
Items that have been altered, installed, or modified cannot be returned.
Return Process
Contact our Customer Support team to request a Return Authorization (RMA) before sending items back.
Once your return is approved, you’ll receive instructions on where to send the product.
Customers are responsible for return shipping costs unless the item was defective or incorrect.
Refunds
Refunds are issued to the original payment method once the returned item has been received and inspected.
Please allow 5–10 business days for the refund to appear on your account.
In some cases, a restocking fee may apply (if applicable, this will be disclosed during your return authorization).
