2.5 TFSI Audi RS3 & TTRS - FERREA Intake Valves

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.

FERREA Reinforced Intake Valves for 2.5 TFSI Engines

FERREA intake valves are made of high-strength steel for all 2.5L TFSI engines, including those used in Audi TT RS and Audi RS3 models.

Standard valves in the Audi 2.5L TFSI engine have a significant weakness: they can fail in engines with significantly increased power or high mileage. Standard valves are hollow and sodium-cooled, and their thin valve stem leaves little material to protect the valve.

Benefits of FERREA Valves

• High heat resistance
• Excellent fracture strength
• Specially heat-treated material
• Extremely strong construction
• Top-tier manufacturing quality

Available in standard or +1 mm oversized versions.
Note: For +1 mm valves, the valve seat must be machined to fit.

Additional Information

• Package includes 10 valves
• FERREA components are used in Formula 1, IndyCar, NASCAR, and drag racing series, among others.

Installation Recommendation

When installing new Dreinut valves, it is always recommended to use new OEM valve cotters. This ensures proper valve seating. Worn cotters can cause play, preventing the valve from seating correctly.

Compatibility (2.5 TFSI EA855 / EA855 evo)

Audi A3 / S3 / RS3

• 8P, 8PA | model years 2003–2013
  2.5 TFSI (EA855)
  CEPA | 340 hp (250 kW)
• 8V | model years 2012–2020
  2.5 TFSI (EA855 evo)
  DAZA | 400 hp (294 kW)
• 8V | model years 2012–2020
  2.5 TFSI (EA855 evo)
  DNWA | 400 hp (294 kW)
• 8V | model years 2012–2020
  2.5 TFSI (EA855)
  CZGB | 367 hp (270 kW)
• 8Y | model years 2020–>
  2.5 TFSI (EA855 evo)
  CZGB | 367 hp (270 kW)
• 8Y | model years 2020–>
  2.5 TFSI (EA855 evo)
  DAZA | 400 hp (294 kW)
• 8Y | model years 2020–>
  2.5 TFSI (EA855 evo)
  DNWA | 400 hp (294 kW)
• 8Y | model years 2020–>
  2.5 TFSI (EA855 evo)
  DNWB | 390 hp (287 kW)
• 8Y | model years 2020–>
  2.5 TFSI (EA855 evo)
  DNWC | 400 hp (294 kW)
• 8Y | model years 2020–>
  2.5 TFSI (EA855 evo)
  DNWD | 407 hp (299 kW)
• 8Y | model years 2020–>
  2.5 TFSI (EA855 evo)
  DXHB | 400 hp (294 kW)

Audi Q3 / RS Q3

• 2nd Generation (F3) | model years 2018–2025
  2.5 TFSI (EA855 evo)
  DAZA | 400 hp (294 kW)
• 2. Generation (F3) | model years 2018–2025
     2.5 TFSI (EA855 evo)
     DNWA | 400 hp (294 kW)
• 8U | model years 2011–2018
  2.5 TFSI (EA855)
  CTSA | 310 hp (228 kW)
• 8U | model years 2011–2018
  2.5 TFSI (EA855)
  CZGA | 340 hp (250 kW)
• 8U | model years 2011–2018
  2.5 TFSI (EA855)
  CZGB | 367 hp (270 kW)

Audi TT / TTS / TT RS

• 8J | model years 2006–2014
  2.5 TFSI (EA855)
  CEPA | 340 hp (250 kW)
• 8J | model years 2006–2014
  2.5 TFSI (EA855)
  CEPB | 360 hp (265 kW)
• FV / 8S | model years 2014–>
  2.5 TFSI (EA855 evo)
  CZGB | 367 hp (270 kW)
• FV / 8S | model years 2014–>
  2.5 TFSI (EA855 evo)
  DAZA | 400 hp (294 kW)
• FV / 8S | model years 2014–>
  2.5 TFSI (EA855 evo)
  DNWA | 400 hp (294 kW)
• FV / 8S | model years 2014–>
  2.5 TFSI (EA855 evo)
  DNWB | 390 hp (287 kW)
• FV / 8S | model years 2014–>
  2.5 TFSI (EA855 evo)
  DNWC | 400 hp (294 kW)

Cupra Formentor

• I (VZ) | model years 2020–>
  2.5 TFSI (EA855 evo)
  DNWB | 390 hp (287 kW)