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GrimmSpeed HiFlow Exhaust Manifold Crosspipe Ceramic Coated (Part Number: )
GrimmSpeed HiFlow Exhaust Manifold Crosspipe Ceramic Coated (Part Number: )
GrimmSpeed HiFlow Exhaust Manifold Crosspipe Ceramic Coated (Part Number: )
GrimmSpeed HiFlow Exhaust Manifold Crosspipe Ceramic Coated (Part Number: )
GrimmSpeed HiFlow Exhaust Manifold Crosspipe Ceramic Coated (Part Number: )
GrimmSpeed HiFlow Exhaust Manifold Crosspipe Ceramic Coated (Part Number: )
GrimmSpeed HiFlow Exhaust Manifold Crosspipe Ceramic Coated (Part Number: )
Community Media
GrimmSpeed HiFlow Exhaust Manifold Crosspipe Ceramic Coated (Part Number: )
GrimmSpeed HiFlow Exhaust Manifold Crosspipe Ceramic Coated
Subaru Models (inc. 2002-2005 2008-2014 WRX / 2004-2014 STI)
Read 12 Reviews | 20 Q&As
Part # 001002
$259.00

In stock! Ships same day

Features & Product Details

What's one of the most overlooked anti-flowing Subaru pieces you ask?? ...The stock exhaust manifold crossover. 50% of your exhaust gasses are passing through this tiny tiny pipe and that is not good. Well here comes the solution for this problem.

Welcome the GrimmSpeed Version 2 Subaru Exhaust Manifold HiFlow Crossover. Well they've decided to step it up a notch with the first revision of the crossover. Meet HiFlow Crossover v2. Immaculate welds, smooth as butter 2" stainless steel, thick 12mm stainless flanges. You can't beat this piece.

Customers have seen up to 15 HP INCREASE when combined with a PnP Subaru Exhaust Manifold. This unit is built from 2" 304 Stainless Steel throughout, maximizing exhaust flow from cylinders 1 and 4 to the manifold collector for faster turbo response. This unit has a flex in the center to allow for easier installation and for thermal expansion during hard driving.

Add on GrimmSpeed's amazing Ceramic Heat Coating help keep the heat in and speed up those exhaust gasses even more.

This includes all the gaskets necessary for installation.

Specifications

Brand: GrimmSpeed
Flange Thickness: 12mm
Installation Hardware Included: Yes
Piping Coating: Yes
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 - 30 Days


Items that are covered under the RallySport Guarantee offer a 30 day no questions asked return policy.

RallySport Guarantee items may be returned within 30 days of the original invoice date and must include all the original parts and contents for a refund.

The RallySport Guarantee does not apply to products that have been modified, damaged, misused or abused. All returns require an RMA (Return Merchandise Authorization) Number, and freight charges are strictly non-refundable. For more information regarding our freight refund policy, please refer to our return policy page found HERE.
RallySport Guarantee

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REVIEWS & CUSTOMER MEDIA

12 Reviews
5 out of 5 Stars
5 Stars
(12)
4 Stars
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Customer Photos and Videos
GrimmSpeed HiFlow Exhaust Manifold Crosspipe Ceramic Coated ( Part Number: 001002)
Nice piece 12 months ago
smackdown
Easy to install. I chose the coated for the few bucks more. I don't have to deal with wrapping or worse. This piece pretty much finished a complete exhaust. Sounds great now Super fast shipping!
  
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1 of 3 people found the following review helpful
Cross pipe 2 years ago
Scooby tech
So I'll start by saying I've ran the stock mani, Tomei ELH, Tomei UEL header, and full Race header. and punched this unit and spent Aprox 7-8 hrs porting and polishing, the factory collectors and ceramic coating them and by far this hits like a 2 stroke dirt bike. (Ps I'm running the domain 1.5XTR 10cm ) by far out of all the headers this is the one to beat hits crazy hard but that's part of my protune. Engine/AVCS ramps up torque then the turbo hits. Think a 250 2 stroke (CR, RM,YZ KX) what ever your flavor and apply that to your STI provided you have ported the factory collectors. Also running a GS up-pipe with Tial 38mn gate.
  
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0 of 3 people found the following review helpful
Grimmspeed cross pipe  2 years ago
abankert2172231
I wanted to order the cross pipe however I have read from previous reviews that the pipe leaks where the mesh catted area on the pipe is. Did you guys fix this problem? Please let me know thanks subieguy2121
  
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As advertised... 2 years ago
justme142176680
Well made crossover pipe. Fit and finish are great. It's Grimmspeed soooo it's pretty damn good.
  
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Great product 2 years ago
brycemb1633591
The fit was excellent and install went very smoothly. Maybe a bit quicker spool but hard to tell. RSD as always was excellent!
  
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QUESTIONS & ANSWERS

  • Q: Ceramic coating  capilarybinkie2 years ago

    I was wondering if this was coated on the inside also?
  • Q: Header differences.  StarryBoar3 years ago

    So I would like to install the Tomei Experme Un-equal headers. Would this part be relevant? Or compatible? Thank you.
    • 0 of 0 people found the following answer helpful

      A:  This is designed to be installed to the stock header and would not be compatible with aftermarket headers. As majority of aftermarket headers will be a full assembly, and the stock is a 2 piece with the cross pipe between.

      Brady R @ RallySport Direct 3 years ago  
        
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  • Q: need with u headers?  Chada1208329884 years ago

    Will this work with aftermarket headers? Plainning to buy headers and i dont know if i will would need this pice? Thanks
    • 0 of 0 people found the following answer helpful

      A:  No, Most aftermarket headers will replace this pipe.

      Brady R. @ RallySport Direct 4 years ago  
        
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    • 1 of 1 people found the following answer helpful

      A:  No this is only for use with the stock manifolds. 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