3.125" Street-Catted Downpipe

The 27WON Performance Downpipe is engineered to provide a no-compromise solution for power, style, and fitment in 2016+ Honda Civic 1.5T models (SI, Sedan, Coupe, and Hatchback) and 2017+ Honda CRV 1.5T models. This downpipe features a CAD-designed 3.125” inlet for optimal exhaust gas flow, enhancing turbocharger efficiency and response. The inlet and outlet flanges are crafted from investment cast T304 stainless steel, while the stainless steel piping and brackets are precision TIG welded for durability. It is designed to integrate with OEM heat shields and includes laser-cut, formed T304 SS heat shield brackets. Available with a high-flow 200-cell density metallic foil catalytic converter for street and race applications, the downpipe is stated to provide 7 wHP gains from 3200-5400rpm without tuning changes. For off-road use only, note that a Check Engine Light (CEL) may be illuminated. The manufacturer recommends pairing it with their larger, free-flowing front-pipe for maximum benefit. Installation time is estimated at 2 hours with a difficulty rating of 4/5. Compatibility includes 2016+ Honda Civic 1.5T equipped models and 2017+ Honda CRV 1.5T equipped models. It is also noted that lower heat shield fitment may differ outside North America, potentially requiring modification for proper installation. A Limited Lifetime Warranty is included.