RM Downpipe Decat Audi S6, S7, RS6, RS7 4.0 TFSI

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.

Replaces the following OEM part numbers

4G0254202NX, 4G0254250QX, 4G0254252LX, 4G0254300K, 4G0254350K.

*This product is not ECE-approved. For racing use only.

Pipe size – 76 mm
Pipe size at midpipe connection – 60 mm

Fitment list:

Audi A6 S6 quattro 4G2, 4GC 3993 ccm, 309 KW, 420 PS 2012/02-2018/09
Audi A6 S6 quattro 4G2, 4GC 3993 ccm, 331 KW, 450 PS 2014/10-2018/09
Audi A6 Avant S6 quattro 4G5, 4GD 3993 ccm, 309 KW, 420 PS 2012/02-2018/09
Audi A6 Avant S6 quattro 4G5, 4GD 3993 ccm, 331 KW, 450 PS 2014/10-2018/09
Audi A6 Avant RS6 quattro 4G5, 4GD 3993 ccm, 412 KW, 560 PS 2013/01-2018/09
Audi A7 Sportback S7 quattro 4GA, 4GF 3993 ccm, 309 KW, 420 PS 2012/02-2015/03
Audi A7 Sportback S7 quattro 4GA, 4GF 3993 ccm, 331 KW, 450 PS 2014/07-2018/05
Audi A7 Sportback RS7 quattro 4GA, 4GF 3993 ccm, 412 KW, 560 PS 2013/10-2018/04

Downpipe models

DECAT / RACE - Also known as a straight pipe, without a catalytic converter / DPF. Produces the most powerful exhaust sound. Not approved for road use. For racing use only.

200CPI - Recommended model. Equipped with an appropriate metallic catalytic converter. Filtration capacity is sufficient to meet emissions test requirements in most cars. 200CPI removes most exhaust odors. Check road legality according to your car's emissions class.

200CPI ECE - A model-specific product approved for road use. With a 200CPI catalytic converter. Meets the emissions test requirements for each model.

Why order from QT Parts?

Fast delivery - products are often in stock

Secure purchase - We guarantee that you will receive an undamaged and correct product

Technical support - We provide the necessary installation tips and help in choosing the right product

Uncertain about choosing the right product? Ask, our customer service will be happy to help.