MAPerformance 2022+ Honda Civic Si/1.5T Downpipe | HDAXI-DPC

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$599.99 $666.66Instant Savings of 10% ($66.67)

Earn  $12.00 In MAP Rewards!

11th Gen Civic Si/1.5T Downpipe by MAPerformance

Targeting faster spool up, and more power, you will find quickly that the factory downpipe is a major restriction on your 11th generation Honda Civic. With smoother transitions, larger piping, and a high flow catalytic converter this allows the exhaust gasses to maintain velocity and eliminate the large amounts of backpressure so often seen on factory downpipes.

As we have seen with the 2022+ Honda Civic it is a very impressive car from the factory, with plenty of power left on the table. For those of us looking to take advantage of that extra power, a downpipe is an absolute must. The factory system houses some very restrictive parts, by making the overall pipe larger with fewer restrictions we have added the option to significantly raise the power on your car without much work at all. Coupled with a High flow catalytic converter, we have a much less restrictive downpipe with all the creature comforts of the OEM unit.

Constructed of 304L Stainless Steel and hand TIG welded right here in the USA this is a high-quality piece made with ease of installation in mind.


  • Direct-Fit Design
  • Utilizes 3" 304L Stainless to allow the highest flow from the turbo and tapers to the factory connection after the cat
  • High flowing Maperformance spec Catalytic converter rated for 500 horsepower
  • Made from 304L stainless steel for superior corrosion resistance and enhanced appearance
  • 304L stainless steel CNC turbo outlet flange
  • Hand TIG welded in our Wrightstown, WI USA Facility


  • Quality construction that will last the life of your car, with a lifetime warranty to back that up
  • High Flowing design for serious horsepower with no compromises
  • Factory connection for easy install with limited tools


  • 2022+ Honda Civic Si
  • 2022+ Honda Civic 1.5T

What's In The Box?

  • 1 - MAP 2022+ Civic Si Downpipe
  • 4 - M10x1.25 Copper nuts (Turbo Outlet)
  • 3 - M10x1.25 Flange Nuts
  • 3 - M10x1.25 Studs
  • OPTIONAL - OEM Gaskets



  • MAPerformance Lifetime Warranty

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