GrimmSpeed Downpipe 3" Catted w/ Black Ceramic Coating - Subaru WRX 2008-2014 / STi 2008-2020 (+Multiple Fitments)
GrimmSpeed Downpipe 3" Catted w/ Black Ceramic Coating - Subaru WRX 2008-2014 / STi 2008-2020 (+Multiple Fitments)
GrimmSpeed Downpipe 3" Catted w/ Black Ceramic Coating - Subaru WRX 2008-2014 / STi 2008-2020 (+Multiple Fitments)
GrimmSpeed Downpipe 3" Catted w/ Black Ceramic Coating - Subaru WRX 2008-2014 / STi 2008-2020 (+Multiple Fitments)
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GrimmSpeed Downpipe 3" Catted w/ Black Ceramic Coating - Subaru WRX 2008-2014 / STi 2008-2020 (+Multiple Fitments)

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GrimmSpeed Downpipe 3" Catted w/ Black Ceramic Coating - Subaru WRX 2008-2014 / STi 2008-2020 (+Multiple Fitments)

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. Also, note that this particular downpipe will come with the black ceramic coated finish to provide extra protection against rust and corrosion, and to lower underhood temperatures. 

Please Note: You will need to slightly adjust the divider tab to fit a VF40/VF46 turbo

*Photos for marketing purposes only. Actual product may vary in appearance / style. 

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Returns Policy

Returns may be accepted within 14 days of purchase pending Return Merchandise Authorization (RMA). No returns or cancellations on special order items. All returns will be charged a 20% restocking fee, no exceptions.

To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging. Item must be able to be resold as new. Several types of goods are exempt from being returned. Hazardous materials, fluids, greases, chemicals, and clothing are not able to return.

Free shipping is available within the lower 48 states for most orders totaling $199 or more. A free shipping option will be available during checkout. This offer is for delivery address in the continental United States and excludes shipments going to Alaska, Hawaii, Military Boxes, and items that require freight shipping.

Processing Time
Patterson Performance stocks a large quantity of items at any given time. Some items may require drop shipping from one of our various distributors. In stock items will ship within 1-2 business days. If you're needing your product quickly, please contact us to verify product availability before placing your order. Orders requiring additional verification (security concerns, incorrect information, etc.) may need additional processing time. Estimated shipping dates are not guaranteed and are subject to change based on inventory levels and manufacturer lead times. Backordered items are shipped immediately once available.

Items ship daily, If the item you ordered is not in stock, a member of our team will contact you via email / phone.

Patterson Performance will only ship to an address that varies from your billing address if payment is made via Paypal or a financing partner.

Patterson Performance ships from multiple warehouses throughout the United States, and sometimes from manufacturers overseas.

You can simply contact us via email / telephone for a live inventory check

P65 WARNING: Cancer and Reproductive Harm

Find more information at www.P65Warnings.ca.gov.

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