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GrimmSpeed Downpipe Catted - Subaru WRX 2008-2014 / STI 2008+ / Forester XT 2009-2013
GrimmSpeed Downpipe Catted - Subaru WRX 2008-2014 / STI 2008+ / Forester XT 2009-2013
GrimmSpeed Downpipe Catted - Subaru WRX 2008-2014 / STI 2008+ / Forester XT 2009-2013
GrimmSpeed Downpipe Catted - Subaru WRX 2008-2014 / STI 2008+ / Forester XT 2009-2013
GrimmSpeed Downpipe Catted - Subaru WRX 2008-2014 / STI 2008+ / Forester XT 2009-2013
GrimmSpeed Downpipe Catted - Subaru WRX 2008-2014 / STI 2008+ / Forester XT 2009-2013
GrimmSpeed Downpipe Catted - Subaru WRX 2008-2014 / STI 2008+ / Forester XT 2009-2013
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User Media for: GrimmSpeed Downpipe Catted - Subaru WRX 2008-2014 / STI 2008+ / Forester XT 2009-2013
User Media for: GrimmSpeed Downpipe Catted - Subaru WRX 2008-2014 / STI 2008+ / Forester XT 2009-2013

GrimmSpeed Downpipe Catted

Subaru WRX 2008-2014 / STI 2008+ / Forester XT 2009-2013

Read 11 Reviews | 17 Q&As
Part # 007091
$570.00

Ships within 23 days

Features & Product Details

You are looking at a top-of-the-line fully USA built Grimmspeed Downpipe. All materials, engineering, R&D, fabrication, etc are straight out of the USA. The tubing is CNC Mandrel Bent 304 Stainless Steel using their custom made bend dies which give you the best fit and performance possible. Please take a second to check out these 304 Stainless Steel flanges which are a serious work of art. All 3 sides of the flanges are CNC Machined to perfection. The outlet of the downpipe has a standard 3” 2-Bolt flange that will mate up with most aftermarket cat-backs on the market. They have also included a wideband O2 bung for you if needed. Having a secondary o2 Bung give you a provision if you want to use a wideband O2 gauge. 

During their design, they utilize their in-house 7-axis FARO™ Arm to obtain extremely accurate fitments. What this means is, they scan all of the mounting points on the car, bring those into their CAD software, and then begin designing the pipe around their scanned OEM data in their Solidworks CAD software. Most downpipes(or exhaust pipes for that matter) on the market are designed using fixtures. Essentially their competitors will create a welding fixture by handoff of an OEM part. This leads to a ton of chances for things to be off. They don't take those chances. They have spent the capital on R&D equipment where others have not.

Because this product replaces/removes an OEM emissions control device we must state that this product is for offroad use only.

New hardware and gaskets will be included to make this downpipe ready for the installation. 

Please Note: You will need to slightly adjust the divider tab to fit a VF40/VF46 turbo. It’s a very simple process but please contact our customer service representatives if you have any questions.

Specifications

Brand: GrimmSpeed
Includes Catalytic Converter: Yes
Installation Hardware Included: Yes
Mouth Design: Divorced Wastegate
Piping Coating: No
Piping Flex Joint: No
Piping ID: 3.00in
Piping Material: 304 Stainless Steel
Piping Taper: No
Tuning Required: Yes
Mfgr. Warranty: 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.
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REVIEWS & CUSTOMER MEDIA

11 Reviews
5 out of 5 Stars
5 Stars
(11)
4 Stars
(0)
3 Stars
(0)
2 Stars
(0)
1 Stars
(0)
Customer Photos and Videos
GrimmSpeed Downpipe Catted ( Part Number: 007091)
GrimmSpeed Downpipe Catted ( Part Number: 007091)
1 of 1 people found the following review helpful
Beautiful! 4 months ago
5out of 5stars

The quality when I unboxed the downpipe was incredible. Every weld was perfect, the flanges are extremely thick and durable. The install was like any other downpipe install, very easy. I’ve had bellmouth downpipes that were difficult to get anything on the bottom but for the turbo flange but this wasn’t like that. As for the sound and performance, best downpipe I’ve had yet. I have it paired with a tomei Expreme catback and it sounds worlds better than my last STI that was invidia catless turbo back. Highly recommend this downpipe to anybody looking to stay catted. My car runs extremely well on the Cobb stage 2 OTS map as well. My AF ratios are very consistent and where they should be. Never pull knock except the normal -1.4 when my defrost is on. Pulls amazing and no over boosting. 5 stars no doubt.
  
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1 of 1 people found the following review helpful
2014 wrx  1 year ago
5out of 5stars

perfect fit perfect welds grimmspeed as always comes threw solid top notch company
  
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Great product 2 years ago
5out of 5stars

Installed on Legacy GT. Fits perfect other than the waste gate lip needs a little bending ( they told me this in the instructions) to allow valve to open all the way. A little trial and error, fit and bend.... and it went together nice. As far as the bolt up... perfect alignment. As far as the sound and performance, Amazing! but you knew that cause your friends car has one on it! Get it
  
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1 of 1 people found the following review helpful
Very Nice Product! 2 years ago
5out of 5stars

I went with this divorced waste gate DP cause I read it works well with the stock turbo. But at the same time a down pipe is a down pipe. The quality of this GrimSpeed downpipe is excellent! And I currently have it paired with the Invidia Q300. The power gains are what I expected with such mod and a stage 2 map from Cobb. I felt a more precise turbo spool and much better top end power. The sound this pair produces is a very deep rumbling tone and not extremely loud at higher RPM’s and very nice idle sound. Very satisfied! And very fast shipping from Rallysport Direct!
  
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1 of 1 people found the following review helpful
Best purchase ever 3 years ago
5out of 5stars

After having this installed at a local shop and installing the Stage 2 OTS, I'm grinning ear to ear. This was a great purchase. Cold starts on this beast sound awesome! I would recommend this to anyone with an STI. This is how the car should have come from the factory.
  
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QUESTIONS & ANSWERS

  • Q: Fitment  Jason3 months ago

    Would this fit with a Tomei Expreme Ti Catback, or will it need a adapter/ what adapter would it need?
  • Q: Fitment   Silvergrey3 months ago

    I already have an ETS extreme catback exhaust, will this downpipe fit directly to my catback or will I need any adapters or specific hardware besides the ones that are included with the product?
  • Q: Parts  Dblockdc246814 months ago

    If I got the GS downpipe and installed to my car, would I need to upgrade injectors or anything else,If I also have the cool SF I Taken? I have 2017 STI.
    • 0 of 0 people found the following answer helpful

      A:  With the downpipe, the only thing that you would need to do is flash stage 2 on your AP or get protuned.

      Michael N. @ RallySport Direct 3 months ago  
        
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