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GrimmSpeed Ceramic Coated 38/40mm V-Band External Wastegate Uppipe - Subaru Models (inc. 2002-2014 WRX / 2004+ STI)

MODEL # GRM 059002
Manufacturer Part # 059002

$380.00

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Grimmspeed 38/40mm 2 Bolt Uppipe Wastegate Kit Stainless Steel ( Part Number:GRM 059002-WG)
Grimmspeed 38/40mm 2 Bolt Uppipe Wastegate Kit Stainless Steel
As low as $690.10
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Description

This is the Grimmspeed External Wastegate Up Pipe that features a 38/40mm external wastegate flange. This up pipe allows owners to convert their internal gated setups to an external gated option. The benefit of an external wastegate is that it allows exhaust gases to be diverted prior to entering the turbo which will create a faster turbo spool. And because the external wastegate has a larger diameter than the stock internal wastegate, it allows the exhaust gases to be released faster which improves boost control, and it promotes longer life in the turbocharger. More importantly, moving the wastegate out of the turbocharger will relieve a large amount of turbulence that the stock internal wastegate will create.

Grimmspeed fabricated this up pipe from quality 304 stainless steel materials with thick 12mm flanges that will not warp. The flanges have been CNC cut for perfect tolerances and a flex section has been added to extend the lift of this up pipe, and it will allow for expansion and contraction without cracking, and it will lead to fewer exhaust leaks. With a good tune, users can expect gains of 15-40WHP when tuned for an external wastegate. 

Aside from the up pipe, a dump tube is provided, along with all the hardware and gaskets to make this up pipe ready for the installation. Additionally, this up pipe will come ceramic coated in a nice black finish for extra protection against heat and corrosion.

Note that this up pipe is not suitable for RHD cars.


 
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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
Gaskets Included: Yes
Includes Catalytic Converter: No
Installation Hardware Included: Yes
Piping Coating: Yes
Piping Flex Joint: Yes
Piping Material: 304 Stainless Steel

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.
RallySport Guarantee
  INSTALLATION INSTRUCTIONS

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4.7

5 STAR
91%
4 STAR
3 STAR
2 STAR
9%
1 STAR

Great for now, or later.
Kent C. 1 year ago
Do I have an EWG setup? Not yet, no. But I plan on getting it on there once I can go bigger. In the meantime, while I wait, I have this plugged with one of the GrimmSpeed block-off plates. It's awesome because the hard part of replacing the up-pipe is already done! It fits great, and the black finish on it perfectly matches all of my other GrimmSpeed ceramic-coated exhaust parts. If you're considering going EWG at all, just buy it and block it now, then go EWG once you hit that point. Oh, and don't forget that GrimmSpeed was awesome enough to include all the needed gaskets and hardware so you don't have to spend on that, too, which is nice.
Comment

Awesome Grimmspeed quality
coleisboosted 3 years ago
Grimmspeed did an awesome job with this product. They include all hardware and gaskets that you need which is just awesome! Install wasn't too bad, how the dump tube clears the transmission or downpipe depends on what angle the wastage itself is installed on the downpipe. No complaints, love it.
Comment

Beautiful piece
playslikepage71 3 years ago
This thing is freaking gorgeous. It fits like a glove, the only issue being the added thickness from the coating around the v-band flanges. Grimmspeed, if you're reading this, mask them off during coating! Install was kind of a pain, but I expect this kind of stuff to be (and we Subaru enthusiasts are a special kind of masochist). Spool is quicker, the dump sounds amazing through my Tial MV-S 38mm EWG, and my tuner loves the improvement it made in boost control. Butt dyno feels like it picked up some power as well. Just remember to order some exhaust manifold gaskets because you'll need to pull that whole assembly down to do the install.
Comment

Dump tube
kevin.jsmith9149777 3 years ago
Great product not to hard to install but make sure you have enough clearance with the dump tube from the cv axle boot and can't stress it enough make sure you heat wrap the dump tube all In all install when smooth except for the dump tube burning a hole in the cv axle boot
Comment

Little extra edge
Theo K 4 years ago
Solved boost creep once and for good. Inspected upon receiving and nothing was questionable at all. Did toss it in the sink and get all the grit out of it though.
Comment

  • Q: 2014 WRX Hatchback  Aaron 2 years ago

    Answer

    What size bolts are needed from Turbo connection


    • A: The uppipe is connected to the turbo via studs. KIL STS is the part number.


      Chris W. 2 years ago
  • Q:   cvedrin57198 3 years ago

    Answer

    Will this accommodate a 38 mm wastegate and a 44mm wastegate?


    • A: This will only work with a 38mm/40mm wastegate, it will not work with a 44mm wastegate.


      Nick S. 3 years ago
  • Q: Up pipe Gaskets  Wallybud76091 3 years ago

    Answer

    Are the gaskets included with the pipe the grimspeed double thick gaskets or just the normal ones? and are the double thick gaskets recommended over the ones included or are these fine?


    • A: The gaskets included are the standard thickness from Grimmspeed and work fine for most applications.


      Stevens Henager 3 years ago
  • Q: 2 part question- 2009 sti  dubaru 3 years ago

    Answer

    part 1- Im looking at this setup with the tial mvs 38mm wastegate, will be installing with my e85 setup as well but on stock vf48, if I choose to upgrade to an 18-20g down the line after i build my block will I need to go with a different waste gate? or will this setup be sufficient still? And finally will this ewg setup be a nice complement to my stage 2+ e85 setup part 2- everyone seems to recommend going with the GS thicker gaskets (plural) as well, but the only thicker gasktet I seem to be able to find from grimspeed is the manifold to uppipe gasket, Is there also a thicker turbo to uppipe gasket I seem to be overlooking?


    • A: This setup would work fine for the 18-20g turbocharger. Grimmspeed does not have a double thickness uppipe to turbo gasket, but GRM 024001 is still a superior product over the majority of other gaskets on the market.


      Nick S. 3 years ago
  • Q: 2012 WRX ewg setup  wellman9404836 3 years ago

    Answer

    2012 wrx. Would I need a 3 bolt or 2 bolt uppipe to go along with an invidia catless divorced wastegate downpipe? Running the 38mm tial mv-s wastegate.


    • A: The 2 bolt vs 3 bolt refers to the header to uppipe flange. If you have an aftermarket 3 bolt header you will need the 3 bolt uppipe, if you have a standard 2 bolt header a 2 bolt uppipe is needed.


      Nick S. 3 years ago
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