Grail Exhaust - Mercedes-AMG GT 63 / GT 63 S (X290) (*ECE approved)

QT Parts is a Finnish online store.

Our warehouse is located in Nokia, Finland.

You can collect your order directly from us if needed. Simply select “Pickup” at checkout.

Pay securely with multiple payment methods, including invoice and installment plans through Klarna.

The delivery time for products in stock is 1-5 business days. We ship worldwide.

If the product is not in stock and it is a pre order product, the average delivery time is 5-21 business days. If the product has a longer delivery time than previously announced, we will be in touch. International orders may be subject to VAT, import duties, and customs fees upon arrival in the destination country.

Terms for product returns:

• You must return the ordered products within 14 days of receiving
• The products must be unused and without damages
• Commission fee for handling returns is 21,90€
• For product returns, the customer is in charge of the return costs. Only door to door service (Express)
• Shipping costs are not refunded

For international orders sales are final and non-refundable. Once an order is placed, it cannot be canceled or returned. By placing an order, you acknowledge and agree to these terms.

Return address: QT Parts, Vasarakatu 8B, 37150 Nokia, Finland.

Pre order / made-to-order products

If the product you have ordered is a pre order or made-to-order item, it is not subject to the 14-day right of withdrawal or return under consumer protection laws, as the product is manufactured or sourced specifically based on the customer’s individual order.

If you wish to cancel your order before receiving the product, we will refund 50% of the total order amount.

This condition applies to the following product categories:

• Suspension
• Engine Tuning
• Engine Parts
• Exhaust Systems
• Fueling
• Turbochargers/superchargers
• Drivetrain
• ECE-approved Downpipes

All of the above products are manufactured or sourced individually based on the customer’s order, and therefore cannot be returned after delivery, unless the product has a manufacturing or material defect.

In the event of such a defect, the standard liability for defects as provided by consumer protection legislation shall apply.

Note! Delivery time approx. 5-8 weeks.

A more powerful AMG V8 sound without compromise.
The Mercedes-AMG GT 63 and GT 63 S (X290) combine the practicality of a four-door coupé with the raw performance of an AMG 4.0-liter V8 biturbo engine. The GRAIL Automotive valve-controlled exhaust system further emphasizes this character – a clear, sporty sound highlights the engine's dynamics without disturbing resonance on long journeys.

The system is designed to integrate perfectly with the car's original system and maintain driving comfort while making the engine sound noticeably louder and sportier.

Features and benefits

Powerful AMG V8 biturbo sound
GRAIL amplifies the recognizable sound of the AMG engine – loud and clear, without any annoying drone resonance.

Sporty sound in all situations
The exhaust system emphasizes the engine's dynamics, especially during load changes and at high rpm.

ECE type approval *
The exhaust system is approved for road use in ECE countries without separate registration.

High quality L304 stainless steel
Premium materials ensure excellent durability and a finished appearance.

CNC machined precision parts
Precision-crafted components ensure maximum durability and a perfect fit.

Optimized exhaust flow
Flow-optimized piping improves exhaust gas removal and temperature control.

German engineering expertise
Designed and developed in Germany for maximum precision, quality and performance.

Perfect integration into the vehicle

The exhaust system valves are designed specifically for the Mercedes-AMG GT 63 / GT 63 S and meet all applicable noise and road traffic regulations. The system works seamlessly with the car's original controls.

Attention

*Applies to EU type-approved vehicles.
For imported vehicles, we recommend checking compatibility before ordering.

If you have any questions about your vehicle's equipment or system compatibility, our team of experts will be happy to help before you place an order.