GrimmSpeed 44/45mm V-Band External Wastegate Uppipe 3-Bolt

Part #: GRM 007079
MSRP: $359.99



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This product is covered by our
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Brand: Grimmspeed
Gaskets Included: Yes
Includes Catalytic Converter: No
Installation Hardware Included: Yes
Piping Coating: No
Piping Flex Joint: Yes
Piping Material: 304 Stainless Steel
Mfgr. Warranty: 2 Years
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.
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Love your Tomei Header but wish you could go with an external wastegate? Wish no more! This GrimmSpeed Externally Gated Up-Pipe has a 3 bolt lower flange to attach beautifully to the Tomei Header.

An External Wastegate (EWG) allows exhaust gases to be diverted prior to entering the turbo; thus creating a quicker turbo spool. GrimmSpeed's EWG has a larger diameter than the stock internal wastegate; this allows the exhaust gas to be released faster, which improves boost control, maintains maximum boost longer in the rpm range, and extends the life of the turbo. Moving the wastegate out of the turbo relieves the turbo from the massive amounts of turbulence that the stock internal wastegate creates.

The EWG Up-Pipe is built from 304 SS with thick 13mm 304 SS flanges. A flex section has been added; this will extend the life of the product(allows expansion/contraction of pipe without cracking) and will lead to less exhaust leaks. Users should expect gains in the 15-40hp range when tuned for the EWG set-up.

This GrimmSpeed EWG Up-Pipe Kit was designed with the Tomei Header in mind, but may also fit most other 3 bolt flanged headers.

EWG Up Pipe
Dump Tube

Turbo Wastegate Bracket Sold Separately!!!!!

This includes all the gaskets necessary for installation.

This EWG Uppipe is not suitable for RHD cars.





  • AnswerQ: ewg  snowflakewhiteSTI 1 month ago

    Does this come with the vband brackets or do you have to buy separate

    • A: V band flanges are welded onto the uppipe and dump tube, but V band clamps are not included because they come with most wastegates.

      Zach G. 1 month ago

  • AnswerQ: Tomioka UEL Headers  thedball 2 years ago

    It's been made abundantly clear this works with Tomei headers and their 3 bolt pattern. Tomioka headers also have a three bolt pattern, do you know if it is compatible? The bolt pattern looks the same but it may be rotated or different bolt spacing. Compatible with Tomioka UEL Headers?

    • A: Chances are it will fit but we have not been able to confirm this first hand. I'm sure the flanges are the same but how they're rotated could be different. Mike

      sales559bb8b6bb86418e5b8c258d 2 years ago

    • A: We unfortunately cannot confirm fitment with Tomioka headers.

      Zach G. 2 years ago