Downpipe BMW Z4 E89 18i, 20i, 28i N20

1. How to know if the product is suitable for my car?

For each product, we provide a precise list of car models in the description for which this product is suitable. If your car model is listed, proceed with the order. If your model is not listed, look for it under another product. If you cannot find your model anywhere, Contact Us, and we will assist you.

2. Is the quality of the products good?

We prioritize perfection in our product quality control, using the finest-grade materials. Rest assured that the products you purchase from us will be of top-tier quality, performing as well as, or even better than expected or advertised.

3. I want to place an order. How can I do that?

We aim for maximum simplicity, so registration is not necessary. Simply add the desired item to your cart, fill in the necessary delivery information, and proceed to pay for your order in the most convenient way for you.

4. What are the payment methods?

We support payments through the most popular banks in Europe. Start the shopping process, choose your country on the payment page, and you'll see all available banks for your region.

Additionally, we allow payments via credit/debit card (Visa, Mastercard, Maestro) or through the Paypal system.

For more information: Payment methods

5. How long does the delivery take?

Typically, all orders are delivered within 4-8 business days after payment is received.

For more information: Delivery information

6. What are the delivery methods and how much do they cost?

Our system will automatically select and calculate the most cost-effective and efficient delivery method based on your country.

To find out which delivery method will be used for your country and the shipping cost for your order, please refer to our shipping prices table here: Delivery information

7. Will I be informed about the progress of the order?

Yes, you will receive regular updates during the order processing, including informational emails about the successful payment, order processing commencement, dispatch of goods (with a shipment tracking code), and more.

8. How to change or cancel my order?

If you notice a mistake or wish to cancel your order, please contact us before the order is shipped out, and we will assist you with the help you need.

9. Can I return the product and get my money back?

Yes, you can return the product and get a full refund within 30 days. However, the return must comply with our return rules.

For more information: Return & Refund Policy

10. Is my data secure?

KPerformance.eu website uses an SSL certificate, ensuring that all your data is processed through a secure and encrypted connection. All transactions are conducted through the interfaces of the most reliable and leading payment companies, such as Paysera, Stripe, and Paypal. Therefore, no data is stored on our server or database.

For more information: Privacy Policy

11. What are wheel spacers used for?

Wheel spacers are easily attachable plates on the wheel hub designed to increase the wheel offset, providing the car with a sportier and more dynamic appearance. They help visually reduce the 'tucked-in' wheel effect into the fender arch.

12. How to know what thickness wheel spacers I need?

This is a matter of personal preference, but when choosing, it's important to ensure that the wheel spacers are not too thick (the wheel offset is not too large), as this could lead to the tire rubbing against the fender. Typically (especially if the wheels are original), you might want to use slightly thicker spacers for the rear than for the front (e.g. 15 mm for the front and 20 mm for the rear). If you are not sure what size wheel spacers to choose, you can send us photos of your car. We will help you make a decision.

13. What is an exhaust downpipe?

A performance downpipe guides exhaust gases out with minimal resistance, reducing backpressure and helping the engine 'breathe' easier. This results in more horsepower and torque, making it a popular choice for car enthusiasts looking to improve overall performance and enhance their vehicle's sound.

14. What is a performance intercooler?

A performance intercooler goes the extra mile for your car's performance by drastically lowering the intake air-charge temperature. Thanks to its expanded cooling area and advanced bar and plate construction, it efficiently cools compressed air, enhancing its density for improved combustion before entering the engine. The result? Improved combustion, higher horsepower, and better overall engine efficiency. Enthusiasts often choose this upgrade to elevate engine performance and responsiveness in turbocharged or supercharged systems.

Did not find the answer to your question? Contact Us.