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GrimmSpeed HiFlow Exhaust Manifold Crosspipe Ceramic Coated ( Part Number:GRM 001002) GrimmSpeed HiFlow Exhaust Manifold Crosspipe Ceramic Coated ( Part Number:GRM 001002)

GrimmSpeed HiFlow Exhaust Manifold Crosspipe Ceramic Coated - Subaru Models (inc. 2002-2005 2008-2014 WRX / 2004-2014 STI)

MODEL # GRM 001002
Manufacturer Part # 001002

$250.00

3
weeks
Ships within 3 weeks
Qualifies for free shipping!


Description

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.
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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.

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: No Warranty
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
  INSTALLATION INSTRUCTIONS

5

5 STAR
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4 STAR
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Verified Purchase

Nice piece
smackdown 15 days ago
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!
Comment

Cross pipe
Scooby tech 8 months ago
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.
Comment

Grimmspeed cross pipe
abankert2172231 10 months ago
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
Comment
Verified Purchase

As advertised...
justme142176680 1 year ago
Well made crossover pipe. Fit and finish are great. It's Grimmspeed soooo it's pretty damn good.
Comment
Verified Purchase

Great product
brycemb1633591 1 year ago
The fit was excellent and install went very smoothly. Maybe a bit quicker spool but hard to tell. RSD as always was excellent!
Comment

  • Q: Ceramic coating  capilarybinkie 1 year ago

    Answer

    I was wondering if this was coated on the inside also?


    • A: No, the ceramic coating will only be on the outside of the piping.


      Josh P. 1 year ago
  • Q: Header differences.  StarryBoar 2 years ago

    Answer

    So I would like to install the Tomei Experme Un-equal headers. Would this part be relevant? Or compatible? Thank you.


    • 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 2 years ago
  • Q: Compatibility  t_huy94033 2 years ago

    Answer

    Would this work with item #COB 524203?


    • A:


      Nick S. 2 years ago
    • A: This does not install in the same area as COB 524203 and will work just fine as long as you are using a stock header.


      Nick S. 2 years ago
  • Q: need with u headers?  Chada120832988 3 years ago

    Answer

    Will this work with aftermarket headers? Plainning to buy headers and i dont know if i will would need this pice? Thanks


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


      Brady R. 3 years ago
    • A: No this is only for use with the stock manifolds. Mike


      GrimmSpeed 3 years ago
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