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GrimmSpeed Downpipe Divorced Catted - Subaru WRX 2008-2014 / STI 2008+ / Forester XT 2009-2013

MODEL # GRM 007091
Manufacturer Part # 007091

$570.00

24
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Description

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 turbo. It’s a very simple process but please contact our customer service representatives if you have any questions.

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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
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: No Warranty
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

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Verified Purchase

Great product
smackdown 10 months ago
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
Comment
Verified Purchase

Very Nice Product!
ShoGunMacias 11 months ago
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!
Comment
Verified Purchase

Best purchase ever
isquishyohead 1 year ago
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.
Comment
Verified Purchase

I heard your like torque....
Yoro721 3 years ago
A great product from an awesome manufacturer! The install is a little difficult, mainly due to taking off the OEM part; remember to use WD40 or PB blaster to take off stubborn bolts, and use anti-seize! Upon installation and using Cobb's stage 2 OTS map (yes it works!), the most immediate thing you will notice is the torque. The car just wants to roll away by itself. There is much more power throughout the gears, and I cannot wait to see what this will do after a tune. Additionally, you will experience a gain in fuel economy as well!

Comment

Great downpipe
brian.s285447 3 years ago
I should have bought this downpipe years ago for my 2011 Sti Hatch. My only complaint is that this downpipe is shorter than the stock one...so the tailpipe sits an inch further under the car. It doesn't look ideal but I don't think that anyone notices except for me.
Comment

  • Q: 09 impreza 2.5gt  Wes 8 months ago

    Answer

    would this match up with an Invidia N1 Cat Back Exhaust Titanium Tip/ do I need any sort of adapters? or is there a better system that matches up better?


    • A: No adapter will be needed with a flat 3 inch flange like the Invidia N1 catbacks for your car.


      Evan M. 8 months ago
  • Q: Length of downpipe  BOOSTICKWRX 9 months ago

    Answer

    Hey, I have a 2011 sti sedan. I read a review where a user installed this downpipe on their hatch(not sedan) and the only complaint was that it made the exhaust tips sit in around 1 inch further. I really like the way my exhaust looks, so a little worried about that. Will this effect the way my exhaust sits now? Thanks!


    • A: The exhaust tips may have sat in further if that owner went from using an OEM downpipe with an exhaust adapter that utilizes a donut gasket, to just a flat 3" gasket. That would shorten the length of the pipe by around 3/4". In your case it would depend on how your exhaust system is currently ran and whether you're using an adapter or not.


      Tyler A. 9 months ago
  • Q: Fitment question  Arwolff8 10 months ago

    Answer

    I ordered the GS downpipe and also have the invidia r400 on backorder. Can I install this downpipe and use the OEM cat-back without the adaptor temporarily while I am waiting for the R400 to arrive?


    • A: You would not be able to use this downpipe with the OEM cat-back without the adapter because this is a 3 inch down pipe while the stock cat-back is only two and a half inches. Without the adapter you would experience exhaust leaks.


      Christian B. 10 months ago
  • Q: Just wanting a little clarification  Mike E 10 months ago

    Answer

    I apologize if this had already been addressed and I missed it, but I plan to run this with oem catback for the time being, I will run Cobb stage 2 OTS tune correct? (I have intake as well) Thanks


    • A: Because this isn't a Cobb product technically it will not. However, they both hold the same properties and we have never had an issue installing this part and running a Cobb map. You should be fine.


      Tyler A. 10 months ago
  • Q: Grimmspeed DP catted and Magniflow cbe  Giantsub 2 years ago

    Answer

    Hi there I am very interested in your catted dp. Was wondering if this will bolt right up to the Magniflow cat back 3" exhaust for 08 sti hatch? Also can I retro fit stock heat shield to your dp? And lastly with the cat being where it is vs higher up will smog stations quickly fail you regardless that you have a cat on there? Thanks


    • A: This should bolt directly to any catback that is OEM length. You can use a stock heat shield but it does require trimming to clear the larger wastegate flange on the downpipe. Unfortunately we cannot confirm emissions and products like this are meant for offroad use only.


      Nick S. 2 years ago
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