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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 (0071XX) - Modern Automotive Performance
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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 (0071XX) - Modern Automotive Performance
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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 (0071XX) - Modern Automotive Performance
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  • GrimmSpeed Catted J-Pipe/Downpipe | 2015+ Subaru WRX (0071XX) - Modern Automotive Performance
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  • https://youtu.be/8pRckF-XKEc
  • GrimmSpeed Catted J-Pipe/Downpipe | 2015+ Subaru WRX (007103)

    MAP price match guarantee Unbeatable Price Guarantee

    GrimmSpeed

    GrimmSpeed Catted J-Pipe/Downpipe | 2015+ Subaru WRX

    PART# GRI 007103
    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



    $ 699.00

    this item typically ships in 3-5 Days. Free delivery by , to your door when ordered within hrs and mins
    No Ceramic Coating

    Fits Your
    MAP Loyalty: Earn $ 13.98 Toward Next Purchase!

    304 Stainless Steel Catted J-Pipe/Downpipe for Subaru WRX 2015+ Manual

    With the 2015 J-Pipe, the devil is truly in the details and the product development team here at GrimmSpeed has taken the time necessary to knock each of those details out of the park. As a result, what you see here is a meticulously engineered J-Pipe with an innovative flange design, single piece construction, excellent ground clearance and fitment with superb quality and craftsmanship.

    Performance of the J-Pipe was verified on our 2015 WRX using the following method. Our tuned baseline run is the same run that we used in showing the boost control performance of the GrimmSpeed 3-Port Solenoid. We then installed the J-Pipe and retuned the car, using the exact same tuning methodology to ensure consistency. This ensured a real apples-to-apples comparison between the stock J-Pipe and the GrimmSpeed unit. The results showed a gain of 26.7whp (14.1%) and 19.8wtq (9.0%) and are displayed in the chart to the left. The percentage gains should be the focus here, as this particular dyno reads very low (stock baseline was 171). From a completely stock vehicle, users can expect a gain of around 45whp (27%) and 70wtq (41%) with the installation of the GrimmSpeed J-Pipe and custom tuning. The chart on the right shows this comparison.

    Our engineers began by 3D scanning the OEM J-Pipe and vehicle underbody using our in-house FARO Arm. That data was used in CAD to design a pipe that fits perfectly within the tight underbody packaging on a 2015 WRX without sacrificing ground clearance. The 2015 WRX uses a series of OEM brackets to support the weight of the turbo and J-pipe, the most important of which bolts to the turbine outlet flange. Our engineers insisted on using thick 1/2" stainless steel flanges, but also knew that without a clever design, the very important OEM brackets would no longer line up. The GrimmSpeed flange design uses a CNC machined pocket that the OEM bracket sits in during installation, allowing the use of 1/2" thick flanges as well as the factory turbo support bracket! Finally, they worked tirelessly to design and manufacture a J-Pipe that could be bent from a single piece of tubing. This allows for more efficient manufacturing, less potential failure points and a product that fits perfectly each and every time.

    Features

    • Innovative Turbo Flange Design - 1/2" thick while retaining all OEM brackets
    • One-Piece Tube - Ensures exact fitment, robust construction and ease of installation
    • Smooth 3.5" to 3" Transition - Matches turbine outlet size and then reduces quickly to maintain exhaust velocity
    • 100% Made in the USA - Manufactured right here in Minnesota
    • Optimized Tube Routing - Maximize ground clearance and minimize flow restriction without modifying suspension hardware, etc
    • Custom Stainless Turbo Studs - Replace the terrible OEM studs and nuts with these, machined specifically for use with 2015 WRX turbine outlet and our 1/2" flanges
    • Standard 3rd O2 Bung - Allows the future use of aftermarket sensors
    • Grounding Strap Mount - Retains all factory functionality
    • 300 Cell Metallic Substrate Catalytic Convertor (Catted Models Only) - Excellent balance of the reduced restriction of a 'race cat' without the stink of a 200 cell unit

    Applications

    • 2015-2019 Subaru WRX Manual

    What's In The Box?

    • 1x Welded J-Pipe Assembly
    • 1x GrimmSpeed Stainless MLS Turbo to J-Pipe Gasket
    • 1x GrimmSpeed Stainless MLS J-Pipe to Catback Gasket
    • 4x Stainless turbo studs w/ nuts
    • 2x Replacement catback bolts w/ nuts
    • 1x O2 Sensor Plug (plugs third O2 bung for future use)
    • 1x Grounding Strap Bolt (not pictured)
    • 2x GrimmSpeed License Plate Frames
    • 1x GrimmSpeed Sticker

    Warranty

    • Grimmspeed Limited Lifetime Warranty

    Resources

    • Installation Video (linked above in image thumbnails)

    304 Stainless Steel Catted J-Pipe/Downpipe for Subaru WRX 2015+ Manual

    With the 2015 J-Pipe, the devil is truly in the details and the product development team here at GrimmSpeed has taken the time necessary to knock each of those details out of the park. As a result, what you see here is a meticulously engineered J-Pipe with an innovative flange design, single piece construction, excellent ground clearance and fitment with superb quality and craftsmanship.

    Performance of the J-Pipe was verified on our 2015 WRX using the following method. Our tuned baseline run is the same run that we used in showing the boost control performance of the GrimmSpeed 3-Port Solenoid. We then installed the J-Pipe and retuned the car, using the exact same tuning methodology to ensure consistency. This ensured a real apples-to-apples comparison between the stock J-Pipe and the GrimmSpeed unit. The results showed a gain of 26.7whp (14.1%) and 19.8wtq (9.0%) and are displayed in the chart to the left. The percentage gains should be the focus here, as this particular dyno reads very low (stock baseline was 171). From a completely stock vehicle, users can expect a gain of around 45whp (27%) and 70wtq (41%) with the installation of the GrimmSpeed J-Pipe and custom tuning. The chart on the right shows this comparison.

    Our engineers began by 3D scanning the OEM J-Pipe and vehicle underbody using our in-house FARO Arm. That data was used in CAD to design a pipe that fits perfectly within the tight underbody packaging on a 2015 WRX without sacrificing ground clearance. The 2015 WRX uses a series of OEM brackets to support the weight of the turbo and J-pipe, the most important of which bolts to the turbine outlet flange. Our engineers insisted on using thick 1/2" stainless steel flanges, but also knew that without a clever design, the very important OEM brackets would no longer line up. The GrimmSpeed flange design uses a CNC machined pocket that the OEM bracket sits in during installation, allowing the use of 1/2" thick flanges as well as the factory turbo support bracket! Finally, they worked tirelessly to design and manufacture a J-Pipe that could be bent from a single piece of tubing. This allows for more efficient manufacturing, less potential failure points and a product that fits perfectly each and every time.

    Features

    • Innovative Turbo Flange Design - 1/2" thick while retaining all OEM brackets
    • One-Piece Tube - Ensures exact fitment, robust construction and ease of installation
    • Smooth 3.5" to 3" Transition - Matches turbine outlet size and then reduces quickly to maintain exhaust velocity
    • 100% Made in the USA - Manufactured right here in Minnesota
    • Optimized Tube Routing - Maximize ground clearance and minimize flow restriction without modifying suspension hardware, etc
    • Custom Stainless Turbo Studs - Replace the terrible OEM studs and nuts with these, machined specifically for use with 2015 WRX turbine outlet and our 1/2" flanges
    • Standard 3rd O2 Bung - Allows the future use of aftermarket sensors
    • Grounding Strap Mount - Retains all factory functionality
    • 300 Cell Metallic Substrate Catalytic Convertor (Catted Models Only) - Excellent balance of the reduced restriction of a 'race cat' without the stink of a 200 cell unit

    Applications

    • 2015-2019 Subaru WRX Manual

    What's In The Box?

    • 1x Welded J-Pipe Assembly
    • 1x GrimmSpeed Stainless MLS Turbo to J-Pipe Gasket
    • 1x GrimmSpeed Stainless MLS J-Pipe to Catback Gasket
    • 4x Stainless turbo studs w/ nuts
    • 2x Replacement catback bolts w/ nuts
    • 1x O2 Sensor Plug (plugs third O2 bung for future use)
    • 1x Grounding Strap Bolt (not pictured)
    • 2x GrimmSpeed License Plate Frames
    • 1x GrimmSpeed Sticker

    Warranty

    • Grimmspeed Limited Lifetime Warranty

    Resources

    • Installation Video (linked above in image thumbnails)

    Customer Reviews

    Based on 11 reviews
    100%
    (11)
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    (0)
    J
    J.B.
    Great product
    B
    B.S.
    Excellent downpipe
    R
    R.R.
    J
    J.
    Beautiful JPipe
    S
    S.C.
    Perfect

    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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