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GrimmSpeed HiFlow Exhaust Manifold Crosspipe Ceramic Coated

MODEL # GRM 001002

$259.00

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  • Q: Ceramic coating  capilarybinkie3 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 1 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?  Chada1208329885 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 5 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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  • Q: benefits  scoobie4025 years ago

    what are the benefits of using this product with stock headers, I'm going stage 2 with the Cobb V3 and wondering if i might see any power gains
    • 0 of 0 people found the following answer helpful

      A:  I wouldn't expect much of a gain with just this pipe. It will work best with a pair of ported manifolds. Mike

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    • 0 of 0 people found the following answer helpful

      A:  Not so much power gains, but less back pressure on cylinders 2 & 4. Protect those fragile cylinders.

      amerino13
        
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  • Q: 2012 sti  Ryan / Teo5 years ago

    does this require a tune
    • 0 of 0 people found the following answer helpful

      A:  No tune is required when only installing this part. Mike

      GrimmSpeed
        
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    • 0 of 0 people found the following answer helpful

      A:  This does not require a tune.

      Nick S. @ RallySport Direct 5 years ago  
        
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    • 0 of 0 people found the following answer helpful

      A:  Tuning is not required for crosspipes, but you will gain more power with a custom tune.

      Zach G. @ RallySport Direct 5 years ago  
        
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  • Q: need help please  mohamed Aljuwaied5 years ago

    does this connect with the nvidia down pipe, im willing to buy this with nvidia down pipe ? will it fit each other or different brands have different measurements. thank you

  • Q: Coating  AFRanger6 years ago

    Does this only come in the black coating, or can I get the blue coating? Thanks

  • Q: loss of power or early spool?  ctom246 years ago

    is there a chance of loosing power with this cross pipe or spooling later? i've heard cases of both.
    • 0 of 0 people found the following answer helpful

      A:  We recommend using this pipe with ported exhaust manifolds as it has a larger ID. When paired with our manifolds we have only seen increases in power over the factory set up. Mike

      GrimmSpeed
        
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  • Q: Benefits?  mbflinn6 years ago

    I have a 2008 WRX with a straight-pipe catback exhaust and the factory air intake and the car is otherwise stock, at least as relates to the intake/exhaust/motor, and I am running an OTS Stage 1 map. If I installed this along with Grimmspeed's ceramic coated uppipe, could I expect to see any noticeable increase in performance without getting a retune? And would there be any danger whatsoever to adding those two pieces without retuning my ECU?
    • 0 of 0 people found the following answer helpful

      A:  To take full advantage of the higher flowing parts a tune would be recommended but it's not necessary. You could install these with your stg 1 map and drive away. Mike

      GrimmSpeed
        
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  • Q: Gaskets  CrazyG6 years ago

    Does this part include the gaskets in the box?
    • 1 of 1 people found the following answer helpful

      A:  GrimmSpeed has started including gaskets with this item.

      Kyle A. @ RallySport Direct 6 years ago  
        
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    • 0 of 0 people found the following answer helpful

      A:  Description says that it does!

      TDG
        
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  • Q: unequal headers  magni6 years ago

    is this neccessary if i were to purchase this with the tomei unequal headers? 2011 wrx
    • 1 of 1 people found the following answer helpful

      A:  This is only made to fit stock headers. If you have aftermarket headers such as Tomei this piece will have no benefit.

      Kirill C. @ RallySport Direct 6 years ago  
        
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  • Q: Wrap?  DrewPat7 years ago

    Since it's ceramic coated, heat-wrapping of this wouldn't be needed right? Or in other words, wrapping it would not produce much benefit?
    • 1 of 1 people found the following answer helpful

      A:  As it is coated it will work much better then a non-coated piece. However you would still see benefit from wrapping it.

      Kirill C. @ RallySport Direct 7 years ago  
        
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  • Q: Cobb stage 2  ctom247 years ago

    Currently i have a full turbo back as well as an AEM CAI. Would adding either a cross over pipe or an up pipe affect the off the shelf maps in any negative way? Would i still be able to run the OTS maps without any problem with either or both of the parts mentioned?
    • 1 of 1 people found the following answer helpful

      A:  A tune is not necessary for an up pipe or cross pipe, therefore you can use those parts with your OTS map. A custom tune is recommended in order to get the full potential out of those parts though.

      Zach G. @ RallySport Direct 7 years ago  
        
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  • Q: Gaskets  Sti20087 years ago

    Which gaskets should i get with this piece and will it effect the exhaust note coming from the back of my sti
    • 1 of 1 people found the following answer helpful

      A:  GRM 077001 is the associated part number for the gaskets you will need. Generally, a crosspipe does not alter the exhaust note.

      tempemail55c523d5caae525b088b4bb3 @
        
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  • Q: Stock headers  Sti20087 years ago

    Is this an easy bolt-on piece if your running a stock application and will this cause over boosting? Thank you
    • 0 of 0 people found the following answer helpful

      A:  This is not the easiest piece of exhaust to replace on your car, but it is not too bad to install. This up pipe should not cause any over boosting or boost spikes. The average labor time seems to be between 2-5 hours.

      Zach G. @ RallySport Direct 7 years ago  
        
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  • Q: Headers  DrewPat7 years ago

    so if I had aftermarket headers I wouldn't really need this, would I?
    • 1 of 1 people found the following answer helpful

      A:  No you would not need this piece at all. The header would replace your entire exhaust manifold :)

      guest561671092a8d25a1658c55d3 @
        
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  • Q: What it does  DrewPat7 years ago

    So what exactly does this piece do? Also, where does it go?
    • 1 of 1 people found the following answer helpful

      A:  This piece replaces the middle section of your OEM headers with a larger diameter pipe allowing for more exhaust flow to the turbo giving you a quicker spool.

      guest561671092a8d25a1658c55d3 @
        
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  • Q: CEL  fordtruck768 years ago

    Will this crosspipe cause any ECU trouble codes on a WRX that is not using any engine management?
    • 0 of 0 people found the following answer helpful

      A:  Nope, it should not cause any issues at all. This pipe does not replace any catalysts or anything of that sort, so you can use it without fear of a CEL. Thanks.

      guest5633b7522a8d259b038ba50d @
        
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