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.

Quaife ATB Differential

The Quaife differential is a high-performance solution that can be installed directly in place of the original factory differential. Designed for uncompromised traction and drivability, this differential is an excellent upgrade for both street and track cars.

Key Features

Seamless and progressive power transfer

Unlike traditional plate-type limited-slip differentials (LSDs), the Quaife ATB utilizes helical gears, enabling smooth and consistent torque distribution without harsh mechanical locking.

Its unique operating principle transfers power in a controlled and smooth manner, making the car's behavior predictable and consistent regardless of the driver's skill level.

Excellent traction and driving stability

The Quaife ATB automatically transfers torque to the driven wheel with better grip. This significantly reduces wheel spin, improves straight-line acceleration, and increases vehicle stability during cornering.

The benefits are evident both on the track with faster lap times and improved corner exit acceleration, and in road driving with better handling and more efficient power transfer.

Low maintenance and long lifespan

Manufactured from premium Corus steel billets, Quaife ATB differentials are designed to ISO 9001 quality standards to withstand demanding use and provide long-term reliability.

With no wear-prone friction plates or clutches in its construction, the differential is virtually maintenance-free. It does not require special oils or regular servicing, making it an excellent solution for busy workshops and performance-minded customers alike.

Strong motorsport heritage and versatility

Quaife ATB differentials are trusted by numerous major car manufacturers and racing teams. They are used extensively in various motorsport disciplines, from Formula 1 to Rallycross.

The Quaife ATB integrates seamlessly with the car's stability control and traction control systems, making it ideally suited for modern electronic vehicle systems.

Quaife ATB differentials have a long and successful history in various motorsport series. They are ideally suited for high-performance vehicles such as the Lamborghini Huracán, Audi R8, McLaren, and Nissan GT-R R35, and for a wide range of applications from active street driving to demanding competitive use.