27WON Performance
27WON High Flow Catted Downpipe | 16-21 Civic 1.5T & Si
27WON High Flow Catted Downpipe | 16-21 Civic 1.5T & Si
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Unity Performance is the exclusive Canadian dealer for 27WON Performance products. US customers, please purchase directly through 27WON.
Fits:
- 2016 - 2021 Honda Civic 1.5T (Coupe FC3, Hatch FK7, Sedan FC1)
- 2017 - 2020 Honda Civic Si (Coupe FC3, Sedan FC1)
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The 27WON High Flow Catted Downpipe delivers 7 whp gains from 3,200–5,400 rpm with no tuning changes — and significantly more with custom tuning. Designed to work with all OEM heat shields, it pairs best with the 27WON front pipe for maximum flow benefit (purchase together and save over $100).
The 3.125" market-leading downpipe inlet creates a large volume for hot exhaust gases to escape, improving turbocharger efficiency and response. Investment cast T304 stainless steel inlet and outlet flanges, precision TIG welded stainless piping and brackets, and laser-cut heat shield brackets with a multi-sided foot for superior connection and durability.
Specifications
- 3.125" inlet — market-leading diameter for maximum turbo efficiency
- Investment cast T304 stainless steel inlet and outlet flanges
- Precision TIG welded stainless piping and brackets
- Laser-cut T304 SS heat shield brackets
- Compatible with all OEM heat shields
- High-flow catalytic converter
Features
- +7 whp from 3,200–5,400 rpm — no tune required
- Significantly more power with custom tuning
- Pairs with 27WON front pipe for maximum flow benefit
- Engineered and manufactured by 27WON Performance
