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GrimmSpeed HiFlow Exhaust Manifold Crosspipe - Subaru Models (inc. 2002-2005 2008-2014 WRX / 2004-2014 STI)
GrimmSpeed HiFlow Exhaust Manifold Crosspipe - Subaru Models (inc. 2002-2005 2008-2014 WRX / 2004-2014 STI)
GrimmSpeed HiFlow Exhaust Manifold Crosspipe - Subaru Models (inc. 2002-2005 2008-2014 WRX / 2004-2014 STI)
GrimmSpeed HiFlow Exhaust Manifold Crosspipe - Subaru Models (inc. 2002-2005 2008-2014 WRX / 2004-2014 STI)
GrimmSpeed HiFlow Exhaust Manifold Crosspipe - Subaru Models (inc. 2002-2005 2008-2014 WRX / 2004-2014 STI)
GrimmSpeed HiFlow Exhaust Manifold Crosspipe - Subaru Models (inc. 2002-2005 2008-2014 WRX / 2004-2014 STI)
GrimmSpeed HiFlow Exhaust Manifold Crosspipe - Subaru Models (inc. 2002-2005 2008-2014 WRX / 2004-2014 STI)
Community Media
User Media for: GrimmSpeed HiFlow Exhaust Manifold Crosspipe - Subaru Models (inc. 2002-2005 2008-2014 WRX / 2004-2014 STI)
User Media for: GrimmSpeed HiFlow Exhaust Manifold Crosspipe - Subaru Models (inc. 2002-2005 2008-2014 WRX / 2004-2014 STI)
User Media for: GrimmSpeed HiFlow Exhaust Manifold Crosspipe - Subaru Models (inc. 2002-2005 2008-2014 WRX / 2004-2014 STI)
User Media for: GrimmSpeed HiFlow Exhaust Manifold Crosspipe - Subaru Models (inc. 2002-2005 2008-2014 WRX / 2004-2014 STI)

GrimmSpeed HiFlow Exhaust Manifold Crosspipe

Subaru Models (inc. 2002-2005 2008-2014 WRX / 2004-2014 STI)

Read 7 Reviews | 8 Q&As
Part # 001001
$220.00

In stock!
Ships today if ordered in
6 hrs 12 mins
ANY QUESTIONS?

Features & Product Details

RallySport Direct proudly carries a great selection of quality aftermarket performance products brought to you by GrimmSpeed. 

 

This is the GrimmSpeed HiFlow Exhaust Manifold Crosspipe. This is generally an overlooked exhaust component, however, GimmSpeed has taken into consideration that this particular component will experience 50% of the exhaust gases passing through this tiny pipe that leaves a lot of room for improvement. GrimmSpeed has invested their time, knowledge, and fabricating craftsmanship to provide you with a high-performance solution aimed to improve your overall performance. 

 

 

DETAILS:

  • 304 stainless steel construction
  • 1.92" piping diameter
  • 14-gauge pipe wall thickness
  • Maximizes the exhaust flow from cylinders 1 and 4 to the manifold collector for a faster turbo response
  • Boost transition is improved over stock
  • Improves the airflow in the mid to high-RPM range
  • Includes new gaskets and hardware for the installation
  •  

     

     

    Specifications

    Brand: GrimmSpeed
    Flange Thickness: 12mm
    Installation Hardware Included: Yes
    Piping Coating: No
    Piping Flex Joint: Yes
    Piping ID: 2.00in
    Piping Material: 304 Stainless Steel
    Piping Taper: No
    Mfgr. Warranty: Lifetime
    Condition: New Product
    Return Policy:
    RallySport Guarantee

    PEOPLE WHO VIEWED THIS ITEM ALSO VIEWED

    REVIEWS & CUSTOMER MEDIA

    7 Reviews
    5 out of 5 Stars
    5 Stars
    (7)
    4 Stars
    (0)
    3 Stars
    (0)
    2 Stars
    (0)
    1 Stars
    (0)
    Customer Photos and Videos
    GrimmSpeed HiFlow Exhaust Manifold Crosspipe ( Part Number: 001001)
    GrimmSpeed HiFlow Exhaust Manifold Crosspipe ( Part Number: 001001)
    GrimmSpeed HiFlow Exhaust Manifold Crosspipe ( Part Number: 001001)
    GrimmSpeed HiFlow Exhaust Manifold Crosspipe ( Part Number: 001001)
    1 of 1 people found the following review helpful
    Awesome Product! 3 years ago
    5out of 5stars
    Kirill C.
    Another amazing GrimmSpeed product! The kit comes with everything needed for install in one box, which is always a huge plus. The included gaskets are the multi layer steel units and the hardware was high grade zinc coated steel. The install could not be any easier, and the cross over pipe fit just like stock and there was no need to do any weird adjustments or modifying of surrounding components. Overall construction can is supper beefy with thick flanges, thick wall tubing and amazing welds. The install was straight forward and only took a few minutes when the engine was out (not need to pull motor to do the install)
      
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    1 of 1 people found the following review helpful
    Excellent 5 years ago
    5out of 5stars
    Paul Grimm
    this will make you say DAAAAAAANNNNGG Really pairs well with pnp manifolds, for those who like UEL and dont like cracks
      
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    1 of 1 people found the following review helpful
    Top tier quality  5 years ago
    5out of 5stars
    ryanjlucas8826550
    Installed this along with porting my stock exhaust manifolds. This is a perfect combination for a daily driver imo. Fit and quality is perfect as expected when you buy anything from grimmspeed. Highly recommended product and worth the money.
      
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    1 of 1 people found the following review helpful
    Worth The Money 6 years ago
    5out of 5stars
    Shane Hollis
    Fits perfect, and looks badass on my 05 sti. Plus you get good gaskets with it. Makes it even better. Didn't take very long to install either.
      
    Was this review helpful?
    Great buy :-) ... 7 years ago
    5out of 5stars
    cylomatik17333
    Install was easy.Fitment was great the install video helped out a lot. I installed this with the Invidia High Flow DP and I am VERY happy with it. It is very high quality and everything I expected. Thanks GS and RSD ...
      
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    QUESTIONS & ANSWERS

    • Q: 13 xt  Rocker7 years ago

      if i combine this with an uppipe should i get my forester tuned to get the most out of it? or will these just be good to go?
      • 1 of 1 people found the following answer helpful

        A:  Hello, To take full advantage of the parts a tune would be recommended, however, it's not needed to run the car. Mike

        GrimmSpeed
          
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    • Q: Crosspipe  castrocigar23416117 years ago

      Is this like a downpipe where its *offroad vehicles only* or am I smog okay?
      • 0 of 0 people found the following answer helpful

        A:  We do not have the ability to confirm that parts will pass emissions. These parts are meant for offroad use only.

        Nick S. @ RallySport Direct 7 years ago  
          
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    • Q: What map?  HogDweeb7 years ago

      When i get my replacement engine, I'm gonna put this on.. but i dont have the software to read the AP maps. will any of their OTS maps have a tune for this, or do I need a protune? Gonna be doing a stage 2.
      • 0 of 0 people found the following answer helpful

        A:  This crosspipe does not require any tuning and you can use the OTS maps, depending on your other mods.

        Zach G. @ RallySport Direct 7 years ago  
          
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      • 0 of 0 people found the following answer helpful

        A:  Couple posts down, Mike said that a tune is required....

        HogDweeb
          
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      • 0 of 0 people found the following answer helpful

        A:  You will gain more power with a custom tune, but in our experience we have found that tuning is not required for a crosspipe alone.

        Zach G. @ RallySport Direct 7 years ago  
          
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    • Q: Curious  JohnM.8 years ago

      Is this compatible with the invidia ELH?
    • Q: Tune? without will it cause damage?  Aaron Roth8 years ago

      I understand you have answered this question a few times already but I was curious as to if I do purchase this and install it will not tuning it cause any serve or minor damage? I wish to just upgrade from my OEM one to this but I have no plans on tuning for atleast another 5-7 months down the road. So can this cause any damage from not being tuned? Thank you RSD!
      • 0 of 0 people found the following answer helpful

        A:  If you don't plan to tune for it your best option is to leave it off until you're ready. Mike

        GrimmSpeed
          
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    This Part Fits

    Subaru Impreza
    2.5 GT Hatchback
    2009 Subaru Impreza 2.5 GT Hatchback
    2010 Subaru Impreza 2.5 GT Hatchback
    2.5 GT Sedan
    2009 Subaru Impreza 2.5 GT Sedan
    2010 Subaru Impreza 2.5 GT Sedan
    WRX
    2002 Subaru Impreza WRX
    2003 Subaru Impreza WRX
    2004 Subaru Impreza WRX
    2005 Subaru Impreza WRX
    WRX Hatchback
    2008 Subaru Impreza WRX Hatchback
    2009 Subaru Impreza WRX Hatchback
    2010 Subaru Impreza WRX Hatchback
    2011 Subaru Impreza WRX Hatchback
    2012 Subaru Impreza WRX Hatchback
    2013 Subaru Impreza WRX Hatchback
    2014 Subaru Impreza WRX Hatchback
    WRX Limited Hatchback
    2010 Subaru Impreza WRX Limited Hatchback
    2011 Subaru Impreza WRX Limited Hatchback
    2012 Subaru Impreza WRX Limited Hatchback
    2013 Subaru Impreza WRX Limited Hatchback
    2014 Subaru Impreza WRX Limited Hatchback
    WRX Limited Sedan
    2010 Subaru Impreza WRX Limited Sedan
    2011 Subaru Impreza WRX Limited Sedan
    2012 Subaru Impreza WRX Limited Sedan
    2013 Subaru Impreza WRX Limited Sedan
    2014 Subaru Impreza WRX Limited Sedan
    WRX Premium Hatchback
    2010 Subaru Impreza WRX Premium Hatchback
    2011 Subaru Impreza WRX Premium Hatchback
    2012 Subaru Impreza WRX Premium Hatchback
    2013 Subaru Impreza WRX Premium Hatchback
    2014 Subaru Impreza WRX Premium Hatchback
    WRX Premium Sedan
    2010 Subaru Impreza WRX Premium Sedan
    2011 Subaru Impreza WRX Premium Sedan
    2012 Subaru Impreza WRX Premium Sedan
    2013 Subaru Impreza WRX Premium Sedan
    2014 Subaru Impreza WRX Premium Sedan
    WRX STI
    2004 Subaru Impreza WRX STI
    2005 Subaru Impreza WRX STI
    2006 Subaru Impreza WRX STI
    2007 Subaru Impreza WRX STI
    WRX STI Hatchback
    2008 Subaru Impreza WRX STI Hatchback
    2009 Subaru Impreza WRX STI Hatchback
    2010 Subaru Impreza WRX STI Hatchback
    2011 Subaru Impreza WRX STI Hatchback
    2012 Subaru Impreza WRX STI Hatchback
    2013 Subaru Impreza WRX STI Hatchback
    2014 Subaru Impreza WRX STI Hatchback
    WRX STI Limited
    2007 Subaru Impreza WRX STI Limited
    WRX STI Limited Hatchback
    2011 Subaru Impreza WRX STI Limited Hatchback
    2012 Subaru Impreza WRX STI Limited Hatchback
    2013 Subaru Impreza WRX STI Limited Hatchback
    2014 Subaru Impreza WRX STI Limited Hatchback
    WRX STI Limited Sedan
    2011 Subaru Impreza WRX STI Limited Sedan
    2012 Subaru Impreza WRX STI Limited Sedan
    2013 Subaru Impreza WRX STI Limited Sedan
    2014 Subaru Impreza WRX STI Limited Sedan
    WRX STI Sedan
    2011 Subaru Impreza WRX STI Sedan
    2012 Subaru Impreza WRX STI Sedan
    2013 Subaru Impreza WRX STI Sedan
    2014 Subaru Impreza WRX STI Sedan
    WRX STI Special Edition Hatchback
    2010 Subaru Impreza WRX STI Special Edition Hatchback
    WRX Sedan
    2008 Subaru Impreza WRX Sedan
    2009 Subaru Impreza WRX Sedan
    2010 Subaru Impreza WRX Sedan
    2011 Subaru Impreza WRX Sedan
    2012 Subaru Impreza WRX Sedan
    2013 Subaru Impreza WRX Sedan
    2014 Subaru Impreza WRX Sedan