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  • STM Axle-Back Exhaust System | 2015+ Subaru WRX (STM-15WRX-AXLBK)
  • STM Axle-Back Exhaust System | 2015+ Subaru WRX (STM-15WRX-AXLBK)
  • STM Axle-Back Exhaust System | 2015+ Subaru WRX (STM-15WRX-AXLBK)
  • STM Axle-Back Exhaust System | 2015+ Subaru WRX (STM-15WRX-AXLBK)
  • STM Axle-Back Exhaust System | 2015+ Subaru WRX (STM-15WRX-AXLBK)
  • STM Axle-Back Exhaust System | 2015+ Subaru WRX (STM-15WRX-AXLBK)
  • STM Axle-Back Exhaust System | 2015+ Subaru WRX (STM-15WRX-AXLBK)
  • STM Axle-Back Exhaust System | 2015+ Subaru WRX (STM-15WRX-AXLBK)
  • STM Axle-Back Exhaust System | 2015+ Subaru WRX (STM-15WRX-AXLBK)
  • STM Axle-Back Exhaust System | 2015+ Subaru WRX (STM-15WRX-AXLBK)
  • STM Axle-Back Exhaust System | 2015+ Subaru WRX (STM-15WRX-AXLBK)
  • STM Axle-Back Exhaust System | 2015+ Subaru WRX (STM-15WRX-AXLBK)

    MAP price match guarantee Unbeatable Price Guarantee

    STM

    STM Axle-Back Exhaust System | 2015+ Subaru WRX

    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



    $ 379.00

    this item typically ships in 1-2 weeks. Free delivery by , to your door when ordered within hrs and mins

    Looking for a j-pipe/downpipe too? Choose one below!

      Best Selling 2015+ WRX J-Pipes/Downpipes
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    GrimmSpeed Catted J-Pipe/Downpipe | 2015+ Subaru WRX (0071XX) - Modern Automotive Performance
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    GrimmSpeed Catted J-Pipe/Downpipe | 2015+ Subaru WRX (007103) 
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    Cobb Tuning 3" Stainless Steel Resonated Catted J-Pipe | 2015-2019 Subaru WRX 6MT (541202) 
      $795.00
    Burned Blue Finish STM Axle-Back Exhaust System | 2015+ Subaru WRX (STM-15WRX-AXLBK) - Burned Blue Finish - STM STM-15WRX-AXLBK-BL $ 379.00
    Polished Finish STM Axle-Back Exhaust System | 2015+ Subaru WRX (STM-15WRX-AXLBK) - Polished Finish - STM STM-15WRX-AXLBK-PO $ 379.00
    Fits Your
    MAP Loyalty: Earn $ 7.58 Toward Next Purchase!

    2015+ WRX Axle-Back Exhaust System by STM

    The STM Axle-Back Exhaust / Muffler Delete for the 2015+ Subaru WRX bolts directly in place of your stock muffler and weighs 50% less than stock. Beautifully crafted in the USA, the STMAxle-Back features mandrel-bent tube and tig welded flanges with polished, dual 3.5" slanted tips. All new mounting hardware is included along with two Remflex graphite gaskets for a leak-free install.

    Features

    • Weighs 14.5lbs (vs 26.6lbs stock)
    • Saves 12.1 pounds
    • 3.5" Quad Slanted Tips
    • Fully Stainless Steel
    • Tig-Welded, Back Purged

    Applications

    • 2015+ Subaru WRX

    What's In The Box?

    • 2 - STM Exhaust Pipes
    • 2 - 2.5" Remflex Gaskets
    • 4 - M10x35 Bolts
    • 4 - M10 Flat Washers
    • 4 - M10 Nuts

    Warranty

    • Manufacturer's Warranty

    2015+ WRX Axle-Back Exhaust System by STM

    The STM Axle-Back Exhaust / Muffler Delete for the 2015+ Subaru WRX bolts directly in place of your stock muffler and weighs 50% less than stock. Beautifully crafted in the USA, the STMAxle-Back features mandrel-bent tube and tig welded flanges with polished, dual 3.5" slanted tips. All new mounting hardware is included along with two Remflex graphite gaskets for a leak-free install.

    Features

    • Weighs 14.5lbs (vs 26.6lbs stock)
    • Saves 12.1 pounds
    • 3.5" Quad Slanted Tips
    • Fully Stainless Steel
    • Tig-Welded, Back Purged

    Applications

    • 2015+ Subaru WRX

    What's In The Box?

    • 2 - STM Exhaust Pipes
    • 2 - 2.5" Remflex Gaskets
    • 4 - M10x35 Bolts
    • 4 - M10 Flat Washers
    • 4 - M10 Nuts

    Warranty

    • Manufacturer's Warranty

    Customer Reviews

    Based on 2 reviews
    100%
    (2)
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    V
    V.P.
    STM muffler delete

    Easy install. Looks great and sounds awesome

    S
    S.
    STM Muffler delete

    Awesome shipping and product showed up in perfect condition, bolts right up and sounds amazing.

    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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    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.

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    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.

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    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.

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    Unfortunately we are not able to ship this item outside of the United States.
    If you have any questions please contact us at: 1-888-627-3736 or Email Us Here.