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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 turbo. It’s a very simple process but please contact our customer service representatives if you have any questions.
Specifications
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
perfect fit perfect welds grimmspeed as always comes threw solid top notch company
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
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!
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.
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!
QUESTIONS & ANSWERS
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Q: Fit rveerz5 months ago
Will this be a direct fit to an OEM exhaust?
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0 of 0 people found the following answer helpful
A: No, you would need an adapter.
Devan M. @ RallySport Direct 5 months agoWas this answer helpful?
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0 of 0 people found the following answer helpful
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Q: Subaru wrx 2012 Nestornlopez10 months ago
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0 of 0 people found the following answer helpful
A: Yes, this downpipe will require a Pro Tune.
Jared A. @ RallySport Direct 10 months agoWas this answer helpful?
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0 of 0 people found the following answer helpful
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Q: Fitment question ryanrm_2126319712 months ago
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0 of 0 people found the following answer helpful
A: This will fit with your Q300 exhaust.
Marcus E. @ RallySport Direct 10 months agoWas this answer helpful?
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0 of 0 people found the following answer helpful
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Q: 09 impreza 2.5gt Wes2 years ago
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1 of 1 people found the following answer helpful
A: No adapter will be needed with a flat 3 inch flange like the Invidia N1 catbacks for your car.
Evan M. @ RallySport Direct 2 years agoWas this answer helpful?
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1 of 1 people found the following answer helpful
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Q: Length of downpipe BOOSTICKWRX2 years ago
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1 of 1 people found the following answer helpful
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. @ RallySport Direct 2 years agoWas this answer helpful?
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1 of 1 people found the following answer helpful
