Special Cyber Week Hours
Mon-Fri 6am - 6pm
+1-888-627-3736 Speak To An Expert
Choose Your Car 
  • MAPerformance Civic X 1.5T Catted Downpipe | 2017+ Honda Civic Si Street Downpipe (HDAX-DPC)
  • MAPerformance Civic X 1.5T Catted Downpipe | 2017+ Honda Civic Si Street Downpipe (HDAX-DPC)
  • MAPerformance Civic X 1.5T Catted Downpipe | 2017+ Honda Civic Si Street Downpipe (HDAX-DPC)
  • MAPerformance Civic X 1.5T Catted Downpipe | 2017+ Honda Civic Si Street Downpipe (HDAX-DPC)
  • MAPerformance Civic X 1.5T Catted Downpipe | 2017+ Honda Civic Si Street Downpipe (HDAX-DPC)
  • MAPerformance Civic X 1.5T Catted Downpipe | 2017+ Honda Civic Si Street Downpipe (HDAX-DPC)
  • MAPerformance Civic X 1.5T Catted Downpipe | 2017+ Honda Civic Si Street Downpipe (HDAX-DPC)
  • MAPerformance Civic X 1.5T Catted Downpipe | 2017+ Honda Civic Si Street Downpipe (HDAX-DPC)
  • MAPerformance Civic X 1.5T Catted Downpipe | 2017+ Honda Civic Si Street Downpipe (HDAX-DPC)
  • MAPerformance Civic X 1.5T Catted Downpipe | 2017+ Honda Civic Si Street Downpipe (HDAX-DPC)
  • MAPerformance Civic X 1.5T Catted Downpipe | 2017+ Honda Civic Si Street Downpipe (HDAX-DPC)
  • MAPerformance Civic X 1.5T Catted Downpipe | 2017+ Honda Civic Si Street Downpipe (HDAX-DPC)
  • MAPerformance Civic X 1.5T Catted Downpipe | 2017+ Honda Civic Si Street Downpipe (HDAX-DPC)

    MAP price match guarantee Unbeatable Price Guarantee
    no codes, no bs, just parts

    MAPerformance

    MAPerformance Civic X 1.5T Catted Downpipe | 2017+ Honda Civic Si Street Downpipe

    PART#
    We Price Match!

    Contact us to ensure you're getting the right part for your car at the absolute best pricing on earth!

    Email - sales@maperformance.com
    Phone 1(888)627-3736



    $ 399.99   $ 444.43
    Cyber Week Savings % ()

    Built To Order Free delivery by , to your door when ordered within hrs and mins
    Fits Your
    MAP Loyalty: Earn $ 8.00 Toward Next Purchase!

    *Actual product may differ from photo.*

    1.5T Civic Si Performance Downpipe By MAPerformance

    When the turbo compresses exhaust gas, its forced through a narrow downpipe on it's way through the exhaust system. This narrow pipe can create lots of turbulence. This air pressure needs to go somewhere. Thanks to MAPerformance it's about to go somewhere very quickly and efficiently!

    Disclaimer: This product is intended for off-road use only. As sound level and emissions laws vary based on location please consult your local authorities for additional information.

    Features

    • CNC machined 304 stainless turbo discharge flange
    • 3" stainless steel inner liner exhaust flex to handle higher heat for turbocharged applications
    • 3" one piece mandrel bent 304 stainless steel tubing
    • V-band exhaust connections for easy install

    Please Note: We recommend replacement of the turbo to downpipe nuts (included with our kit) when installing a downpipe to reduce the chance of breaking the turbo discharge studs from galled threads.

    Applications

    • 2017-2018 Honda Civic Si

    What's in the box?

    • 1 Piece Madrel Bent Catted Down Pipe
    • Optional add on mounting tabs for OEM Heat Shield
    • Optional Downpipe Gasket

    References

    Warranty

    • MAP Limited Lifetime Warranty
    *Actual product may differ from photo.*

    1.5T Civic Si Performance Downpipe By MAPerformance

    When the turbo compresses exhaust gas, its forced through a narrow downpipe on it's way through the exhaust system. This narrow pipe can create lots of turbulence. This air pressure needs to go somewhere. Thanks to MAPerformance it's about to go somewhere very quickly and efficiently!

    Disclaimer: This product is intended for off-road use only. As sound level and emissions laws vary based on location please consult your local authorities for additional information.

    Features

    • CNC machined 304 stainless turbo discharge flange
    • 3" stainless steel inner liner exhaust flex to handle higher heat for turbocharged applications
    • 3" one piece mandrel bent 304 stainless steel tubing
    • V-band exhaust connections for easy install

    Please Note: We recommend replacement of the turbo to downpipe nuts (included with our kit) when installing a downpipe to reduce the chance of breaking the turbo discharge studs from galled threads.

    Applications

    • 2017-2018 Honda Civic Si

    What's in the box?

    • 1 Piece Madrel Bent Catted Down Pipe
    • Optional add on mounting tabs for OEM Heat Shield
    • Optional Downpipe Gasket

    References

    Warranty

    • MAP Limited Lifetime Warranty

    Customer Reviews

    Based on 11 reviews
    91%
    (10)
    9%
    (1)
    0%
    (0)
    0%
    (0)
    0%
    (0)
    E
    E.H.
    Awsome

    Really great product well made glad I went with this

    T
    T.P.
    Map Catted Downpipe

    Sounds great and was a fairly easy install after getting the nuts connecting the downpipe to the turbo off (would recommend pb blaster)
    however for those of you looking to get this downpipe or any other downpipe for that matter but don’t have a ktuner or hondata i would highly suggest getting either device before purchasing downpipe. I installed the downpipe on my 10th gen as well as my friends 10th gen and we both got check engine lights. He didnt have an access port and was stuck looking at a check engine light. While i was able to just clear the code

    A
    A.
    Civic X downpipe

    Great product, really helps with exhaust flow, this fitted up to the MAP street exhaust sounds great, alongside with a tune, you can sorta feel the pickup on the car is a lot smoother. It also feels and sounds cleaner and not like it's choking.

    M
    M.
    Must Have

    If you plan on doing a downpipe I highly recommend this one. In hindsight I should've gotten the heat shield tabs but even without them this pipe is perfect.

    B
    B.
    Impressed!!!

    One of the best mods I have done so far. Very impressed with sound quality and performance. Would definitely recommend.

    MAP Limited Lifetime Warranty

    1.) All MAPerformance in-house fabricated parts include a Limited Lifetime Warranty for the Original Purchaser. This warranty only applies to the original purchaser and is non-transferrable. If the product fails it would need to be determined by MAPerformance that it is due to manufacturing defects in materials or workmanship.

    2.) This does not cover normal wear and tear. Improper use, modification, or abuse voids this warranty. MAPerformance will not be held responsible for additional costs due to the failure of a product (cost of sale, towing, labor, etc.). Warranty claims must be submitted to MAPerformance for review.

    3.) You must create a support ticket to acquire your return authorization number prior to returning the product.

    4.) Warranty claims will not be honored if the product was not purchased through an approved dealer.

    For warranty evaluation please create a support ticket via this form here.

    We use cookies to offer a better browsing experience, analyze site traffic, personalize content, and serve targeted advertisements. Please review our privacy policy & cookies information page.  If you continue you consent to our privacy policy & use of cookies.Accept

    Hello!

    Unfortunately due to vendor restrictions we are unable to sell this brand within Australia or the UK. If you have any questions, feel like you received this message in error or would like suggestions on other brands please contact us here.

    Hello!

    Unfortunately due to vendor restrictions we are unable to sell this brand within Australia. If you have any questions, feel like you received this message in error or would like suggestions on other brands please contact us here.

    Hello!

    Unfortunately due to vendor restrictions we are unable to sell this brand within your country. If you have any questions, feel like you received this message in error or would like suggestions on other brands please contact us here.

    Hello!

    Unfortunately due to vendor restrictions we are unable to sell this brand within California. If you have any questions, feel like you received this message in error or would like suggestions on other brands please contact us here.