GrimmSpeed Lower Uppipe Gasket ( Part Number:GRM 026001)

GrimmSpeed Lower Uppipe Gasket

MODEL # GRM 026001
Manufacturer Part # 026001


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This is GrimmSpeed’s lower uppipe gasket. Whenever you remove or replace your uppipe, it is always a good idea to replace the gasket especially since this is an exhaust component, where excess heat can cause the existing gasket to come apart or become brittle.

The GrimmSpeed uppipe gasket is a multi-layered gasket that will provide a long lasting, leak free seal under extreme heat and pressure.

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Brand: Grimmspeed
Gasket Layers: 9
Material: Stainless Steel
QTY: 1

Mfgr. Warranty: Limited 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.


This product has no user uploaded media. You can upload your photo or video of your install by posting a review. Reviews:
Verified Purchase

Excellent product
Subaru8481 2 months ago
Worked just the way it should
Verified Purchase

Good gasket
D2 3 years ago
It's a gasket. not much to review but it does it's job. No leaks so I'm happy
Verified Purchase

GS gasket review
allen.w.orr75525 4 years ago
gasket is thick unlike an OEM gasket, fit is perfect and no exhaust leaks
Verified Purchase

great product!
superacerc70585 4 years ago
Many people say you wont notice a difference over stock. Maybe if the rest of your car is stock but if already modified, it makes a huge difference in spool time. Running a 20g with full header and exhaust swap, this was my last piece to change and it lowered my full spool by several hundred rpm. Also, ive done a turbo swap since amd with the pesky heat shields gone, the oil return butterfly clip is easily accessable.
Verified Purchase

GFDeMarcus 4 years ago
Used this on my new catless uppipe on my 2005 FXT. Awesome price!

  • Q: Gasket  MY2005WRX 7 months ago


    will this lower gasket work with the invidia uppipe with the 2.5 inch inlet

    • A: Yes, this gasket will fit.

      Chris W. 7 months ago
  • Q: Is this the right gasket?  Sp4rt4n 7 months ago


    If I'm removing my 2 bolt Killer B headers to do my oil pickup install, is this the correct gasket? Which gasket will I need for the head to manifold connection?

    • A: This is the lower up pipe gasket and will need to be replaced if you are unbolting your header. You will also need GRM 020001.

      Chris W. 7 months ago
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