3.125" T304 Stainless Steel Downpipe

The 27WON Performance Downpipe is engineered to free up power and reduce restrictions in turbocharged engines. It boasts a CAD-designed cast stainless steel flange at the inlet and outlet for precise fitment and optimal flow, featuring a large 3.125” diameter to enhance turbocharger efficiency and responsiveness. Constructed from investment cast T304 stainless steel for the flanges, and utilizing precision TIG welding for the stainless steel piping and brackets, this downpipe is built for durability and sustained performance. This performance downpipe offers a gain of 7 wHP from 3200rpm to 5400rpm without requiring immediate tuning changes. For those seeking maximum performance, custom tuning is recommended. The Street-Catted version includes a high-flow 200-cell density metallic foil catalytic converter, though it is for off-road use only and may illuminate the Check Engine Light (CEL). Key specifications include its T304 stainless steel construction, a 3.125” inlet diameter, and precision TIG welding. The product comes with a Limited Lifetime Warranty and is designed and manufactured in Vancouver, Washington. Installation is estimated at 2 hours with a difficulty rating of 4/5. It is noted that fitment of the lower heat shield may differ outside North America, potentially requiring modification. The 27WON Performance Downpipe is compatible with 2016+ Honda Civic 1.5T models (including Sport and SI trims) and 2017+ Honda CRV 1.5T models. It also works with the optional factory engine block heater. Note that a CEL may be illuminated and a tune is often recommended for optimal benefits and to prevent CEL illumination.