GrimmSpeed Uppipe

Part #: GRM 003001
MSRP: $234.99
( 29 reviews )



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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 ID: 1.93in-1.72in
Piping Material: 304 Stainless Steel
Piping Taper: Yes
Mfgr. Warranty: 2 Year
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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Subaru Impreza
WRX STI 2004, 2005, 2006, 2007WRX STI Limited 2007WRX STI Hatchback 2008, 2009, 2010, 2011, 2012, 2013, 2014WRX STI Special Edition Hatchback 2010WRX STI Limited Sedan 2011, 2012, 2013, 2014WRX STI Limited Hatchback 2011, 2012, 2013, 2014WRX STI Sedan 2011, 2012, 2013, 2014WRX 2002, 2003, 2004, 2005, 2006, 2007WRX TR 2006, 2007WRX Limited 2006, 2007WRX Sedan 2008, 2009, 2010, 2011, 2012, 2013, 2014WRX Hatchback 2008, 2009, 2010, 2011, 2012, 2013, 2014WRX Premium Sedan 2010, 2011, 2012, 2013, 2014WRX Premium Hatchback 2010, 2011, 2012, 2013, 2014WRX Limited Sedan 2010, 2011, 2012, 2013, 2014WRX Limited Hatchback 2010, 2011, 2012, 2013, 20142.5 GT Sedan 2009, 20102.5 GT Hatchback 2009, 2010
Subaru Legacy
Sport 1991, 1992, 1993, 1994GT Limited 2005, 2007, 2008, 2009GT 2005, 2006GT spec.B 2006, 2007, 2008, 2009
Subaru Forester
XT 2004, 2005, 2009XT Premium 2005, 2010, 2011, 2012, 2013XT Limited 2006, 2007, 2008, 2009, 2010Sports 2.5 XT 2008XT Touring 2011, 2012, 2013
Subaru Outback
XT 2005, 2006XT Limited 2005, 2007, 2008, 2009
Subaru Baja
Turbo 2004, 2005, 2006
Subaru WRX STI
Base 2015
Saab 9-2X
Aero 2005, 2006

GrimmSpeed is no stranger when it comes to creating artistic metal pieces that add horsepower. Their up-pipe is no exception. The Grimmspeed  up-pipe will eliminate the factory restrictive up-pipe, and this unit with a larger diameter will increase spool, and add as much as +10WHP. For the cost and horsepower ratio, you cannot go wrong.

The GrimmSpeed  up-pipe is constructed out of 304 SS, and has a pipe thickness of 2.0MM. The inlet size is 1.93”, and the outlet size is 1.72”.  The pipe that tapers down to 1.72” acts as a funnel as it moves into the turbo allowing for the smoothest transition and best air quality. The flex joint is not located in the bend, which adds to the life expectancy of the flex section. The outlet size is a perfect match to the most common stock location turbos allowing for a smooth transition into the turbo.

The GrimmSpeed up-pipe includes all the hardware and gaskets to make for a ready installation.

REVIEWS ( 29 )


Verified Purchase
andrew.clark4744514 2 months ago
Installed on my 05 WRX wagon about 3 weeks ago. Grimmspeed has a great youtube video on the installation, I believe its actually in the videos section of this page. I had to cut the sensor off the stock pipe to get it out, it wouldn't fit with it on, at least I couldn't get it out after about a half hour of wiggling and jacking the engine. Total was about 6 hours and 2 broken bolts but definitely worth it. Earlier spool and much loader. Great product and a good price, would recommend it to a friend. Thanks again RSD!

Good looking piece!
Rumble.Bug 4 months ago
The welding on this piece is beautiful, makes me wish it was visible! Once installed i can immediately hear more turbo spool. Great upgrade and should be one of the first for budgie owners.

jamesstatleraz39121 5 months ago
it was one of those things i wasnt sure about, decided to go ahead and get it and i must say i love what it has done. if your thinking about it stop thinking and get it!

Great sound
mitchell.millhouse09768 6 months ago
Got this installed by a professional when I needed to swap turbos as the stock one was on its way out. The stock uppipes cat was starting to clog and starving the turbo as well. After the install of the new uppipe and a replacement stock turbo I got off of a buddy the car drives like a completely different vehicle! The turbo sound is much more prominent, which is very nice! Highly recommended upgrade, especially if you are still running a catted uppipe. I do seem to have more backfires now but im thinking that has a lot to do with the current tune. I'm holding out on getting it retuned as I'm not sure if I'm done with engine upgrades quite yet!

Great product
larsofcamphope70707 9 months ago
Excellent quality from GS. Pipe fit in extremely well and the how to video has great instructions. Word of advise, enlist a good friends help for the removal of the factory uppipe, it's a PITA!!! I did the job myself and would not like to ever again.


  • AnswerQ: Heat wrap  Tlardwrx 2 months ago

    I'm debating between getting this up pipe and the ceramic coated grimspeed up pipe and I'm just curious is heat wrap would be necessary this non coated one.

    • A: Heat wrap is not required, but it is very strongly recommended.

      Zach G. 1 month ago

  • AnswerQ: fitment  exbravo9391588 3 months ago

    will this fit with the tomei headers.

    • A: This in particular will not, you will have to use the 3 bolt uppipe to be compatible with Tomei headers.

      Nick S. 3 months ago

  • AnswerQ: Are these the correct gaskets?  Jbreezy 6 months ago

    i am buying this grimspeed uppipe and a grimspeed downpipe. they both come with the gaskets that those two items directly connect to. I believe in order to install the uppipe i will need extra gaskets as well. Are these the correct gaskets i would also need? part #'s GRM 025001 and GRM 020001

    • A: Hello, You will need GRM 020001 to replace the manifold gaskets after removal. But it is not required to remove the OEM cross pipe for installation.

      6 months ago

  • AnswerQ: Tune needed  hatch_life10 6 months ago

    2010 WRX: I'm replacing my clutch later this week. I plan on installing my Grimm speed up pipe along with my Invidia Catless DP. Can I get away with using my Cobb AP V2 OTS Stage 2 map for dp? Or is a tune required?

    • A: A catless downpipe will require a pro-tune and in some cases an external wastegate is even required. The COBB OTS maps will not work with a catless downpipe.

      Nick S. 6 months ago

  • AnswerQ: Up pipe tune  Dreams02WRX 6 months ago

    So I'm seeing that a tune is required after you install this upgrade. Is it possible to just use a Cobb ots map with an accessport?

    • A: Tuning is not necessary for just an uppipe and you can use the stock tune or the Cobb OTS maps as long as you don't have any other upgrades that are not specified in the map notes.

      Zach G. 6 months ago