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  • 2015 - 2018 Subaru STI Downpipe By MAPerformance
  • 2015-2018 Subaru STI Downpipe Upgrade By MAPerformance | Catted/Gesi Options (STI-4G-DPC)
  • 2015-2018 Subaru STI Downpipe Upgrade By MAPerformance | Catted/Gesi Options (STI-4G-DPC)
  • 2015-2018 Subaru STI Downpipe Upgrade By MAPerformance | Catted/Gesi Options (STI-4G-DPC)
  • 2015-2018 Subaru STI Downpipe Upgrade By MAPerformance | Catted/Gesi Options (STI-4G-DPC)
  • 2015-2018 Subaru STI Downpipe Upgrade By MAPerformance | Catted/Gesi Options (STI-4G-DPC)
  • 2015-2018 Subaru STI Downpipe Upgrade By MAPerformance | Catted/Gesi Options (STI-4G-DPC)

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    MAPerformance

    2015-2018 Subaru STI Downpipe Upgrade By MAPerformance | Catted/Gesi Options

    PART#
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    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



    $ 458.33   $ 611.10
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    This item is built to order
    and typically ships in 4-6 weeks!

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    2015 - 2018 Subaru STI Downpipe By MAPerformance

    When the turbo compresses exhaust gas, its forced through a narrow OEM downpipe on its way through your exhaust system. This narrow pipe creates back pressure & reduces exhaust flow leaving your car short of its true power potential. MAPerformance has crafted the perfect solution to unleash this power and is proudly offering it to the eager 15+ Subaru STI market.

    Designed to last a lifetime, the MAPerformance 2015 - 2018 STi Downpipes are available with a high flow race catalytic converter, an optional GESI cat.

    Built in-house from 3" mandrel bent 304SS piping our semi-divided head pipe maximizes exhaust flow and helps to eliminate unwanted boost creep. Utilizing a thick 1/2" stainless steel turbo outlet flange, high-quality interlocking lined stainless steel flex section and sporting an additional O2 bung, this sti downpipe has been designed to outperform & outlast our competitor's offerings at a price point that won't break the bank.

    Mating our MAPerformance STI Downpipe to an OEM factory exhaust or aftermarket exhaust is a breeze. Simply select the option you'd like in the drop downs above and we will include all the necessary hardware.

    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.

    STI Downpipe Features:

    • Semi divided head pipe to maximize flow and eliminate boost creep!
    • 1/2 thick stainless turbo outlet flange
    • Extra o2 bung and plug
    • Made from 304 stainless steel for superior corrosion resistance and enhanced appearance
    • Mandrel bent tubing throughout optimizes exhaust flow
    • Stainless steel flex section reduces stress from engine movement increasing longevity
    • Designed to be used with your OEM turbo outlet gasket
    • 100% Made in the USA

    Applications

    • 2015-2018 Subaru STi

    What's in the box?

    • One Piece Downpipe
    • Required Hardware & Gasket

    Installation Instructions

    Warranty

    • MAP Limited Lifetime Warranty

    2015 - 2018 Subaru STI Downpipe By MAPerformance

    When the turbo compresses exhaust gas, its forced through a narrow OEM downpipe on its way through your exhaust system. This narrow pipe creates back pressure & reduces exhaust flow leaving your car short of its true power potential. MAPerformance has crafted the perfect solution to unleash this power and is proudly offering it to the eager 15+ Subaru STI market.

    Designed to last a lifetime, the MAPerformance 2015 - 2018 STi Downpipes are available with a high flow race catalytic converter, an optional GESI cat.

    Built in-house from 3" mandrel bent 304SS piping our semi-divided head pipe maximizes exhaust flow and helps to eliminate unwanted boost creep. Utilizing a thick 1/2" stainless steel turbo outlet flange, high-quality interlocking lined stainless steel flex section and sporting an additional O2 bung, this sti downpipe has been designed to outperform & outlast our competitor's offerings at a price point that won't break the bank.

    Mating our MAPerformance STI Downpipe to an OEM factory exhaust or aftermarket exhaust is a breeze. Simply select the option you'd like in the drop downs above and we will include all the necessary hardware.

    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.

    STI Downpipe Features:

    • Semi divided head pipe to maximize flow and eliminate boost creep!
    • 1/2 thick stainless turbo outlet flange
    • Extra o2 bung and plug
    • Made from 304 stainless steel for superior corrosion resistance and enhanced appearance
    • Mandrel bent tubing throughout optimizes exhaust flow
    • Stainless steel flex section reduces stress from engine movement increasing longevity
    • Designed to be used with your OEM turbo outlet gasket
    • 100% Made in the USA

    Applications

    • 2015-2018 Subaru STi

    What's in the box?

    • One Piece Downpipe
    • Required Hardware & Gasket

    Installation Instructions

    Warranty

    • MAP Limited Lifetime Warranty

    Customer Reviews

    Based on 8 reviews
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    B
    B.
    Compliments

    This downpipe installed in a breeze. Gives my stock exhaust a little more sound. I gave it a nice black ceramic coating to keep heat in and protect from road salt in the winters.

    C
    C.
    Highly recommend!

    I can’t say enough good things about map products. I got this downpipe with the stage 2 package and the performance is a night and day difference with a great sound!

    J
    J.S.

    I got this dp with the stage 2 kit and let me say it’s awesome. The sound is amazing with my catback, it came in time. Thanks again MAPerformance.

    V
    V.N.
    Map Gesi Downpipe

    Made typical gains with Dyno protune downpipe and intake. Stock exhaust so it's still quiet but volume is increased a bit with throttle and idle has more bass. No gas smells and hoping to pass inspection when it comes up as gesi cats are supposed to be very efficient in eliminating most emissions. Will post update when that time comes.

    D
    D.M.
    Map Performance catted downpipe

    Fitment on my 2018 sti was perfect. Tig welds look great. Really woke up my r400 catback exhaust. Also pulled in my exhaust tips for a tighter fitment in the bumper cuts since i was able to ditch the grimmspeed adapter. Shipping was quick.

    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.

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