ETS Catted Downpipe 2020+ Toyota SupraAn ETS Pro Series Downpipe should be the first upgrade you purchase for your 2020 Toyota Supra, as the factory downpipe significantly chokes exhaust flow at the end of the downpipe near the catback connection. Our Pro Series upgrade turns your factory 3. 15" downpipe connection into a massive 4. 00" connection, which increases flow area by over 21% Do you already have an aftermarket exhaust that works with the factory downpipe? Don't worry, we have