Attention BMW M5 enthusiasts and performance modders! If you crave the kind of thunderous acceleration, razor-sharp throttle response, and uncompromised power that turns every drive into an adrenaline rush, you know that factory exhaust restrictions are holding you back. Whether you’re chasing lap times, dominating the street, or building a show-stopping machine, the quest for more horsepower and a raw, authentic driving experience is never-ending. Standard downpipes just aren’t built for your ambitions, leaving power on the table and excitement out of reach.
Meet the AME Motorsport Catless Downpipes for BMW M5 (F90 LCI) 2020+ S63 4.4T: designed in Australia for purists who demand perfection. Engineered with precision TIG welding, robust SS304 stainless steel, and tested for power outputs up to 1,000HP, this is the performance unlock your M5 deserves. Enjoy gains of up to 25HP without a tune and up to 100HP with tuning—plus a soundtrack and throttle response that redefine the driving experience.
AME Motorsport stands apart for uncompromising quality and race-bred engineering. Every downpipe is the result of Australian in-house design, ensuring rigorous local standards and unmatched expertise. From expert TIG welding to CNC-machined SS304 flanges, our craftsmanship delivers a product that’s as robust as it is refined. With proven performance in high-power builds and seamless integration with advanced turbo setups, this is the downpipe trusted by serious enthusiasts and professionals alike.
Ready to Unleash Your BMW M5’s True Potential? Don’t settle for stock—upgrade to AME Motorsport Catless Downpipes and experience the power, sound, and craftsmanship your build deserves. Order now and take the lead—whether it’s on the street, the track, or at your next car meet!
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.