CAD designed cast stainless flanges with Race-Catless or Street-Catted options for a complete performance package. Check out the details and design below that went into the 27WON Performance Downpipe.
The inlet and outlet of the 27WON Performance downpipe are CAD designed for optimal flow, durability, and fitment. The market leading 3.125” downpipe inlet creates a large volume for the hot exhaust gases to escape, providing increased turbocharger efficiency and response.
Inlet and outlet flanges are manufactured from investment cast T304 stainless steel. Stainless steel piping and brackets are precision TIG welded for a long lasting and durable performance downpipe.
Precision TIG welding is utilized for the center section and the T304 SS heat shield brackets. The heat shield brackets are laser cut and formed with a multi-sided "foot" for a superior connection and durability.
Heat is the death of performance and durability. Designed to work with all the OEM heat shields our; down-pipe works best when paired with the benefits of our larger and more free flowing front-pipe.
The free flowing downpipe provides 6 wHP gains from 3200rpm to 5400rpm with no tuning changes. Both the 27WON Race-Catless and Street-Catted setups provided nearly identical power gains. Throw some custom tuning at it and the downpipe really starts to shine.
For street applications the 27WON downpipe can come equipped with a high-flow 200 cell density metallic foil catalytic converter.
For race-only applications you can opt for the cat-less design utilizing stainless steel 3.125” piping. Best of all it won't trigger a CEL.
CHECK OUT THESE BLOGS FOR MORE ABOUT THE DESIGN OF THE 27WON PERFORMANCE DOWNPIPE!
Civic Hatchback Sport Exhaust System Evaluation:
Take a comprehensive look at the whole system, including the downpipe.
2016+ Honda Civic 1.5T equipped models
2017+ Honda CRV 1.5T equipped models
Works with optional factory engine block heater
Including Sport and SI models