MAPerformance Downpipe Upgrade | 2008-2021 Subaru STI (STI-4G-DPC-REV2)
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2008-2021 Subaru WRX STI / 2008-2014 Subaru WRX Downpipe Upgrade by MAPerformance
When the turbo compresses exhaust gas, its forced through a narrow OEM downpipe on its way through your exhaust system. This narrow pipe creates back pressure & reduces exhaust flow leaving your car short of its true power potential. MAPerformance has crafted the perfect solution to unleash this power and is proudly offering it to the eager 15+ Subaru STI market.
Designed to last a lifetime, the MAPerformance Subaru Downpipes are available with a high flow catalytic converter.
Built in-house from 3 mandrel bent 304SS piping our semi-divided head pipe maximizes exhaust flow and helps to eliminate unwanted boost creep. Utilizing a thick 1/2 stainless steel turbo outlet flange, high-quality interlocking lined stainless steel flex section and sporting an additional O2 bung, this STI downpipe has been designed to outperform & outlast our competitor's offerings at a price point that won't break the bank.
Mating our MAPerformance Subaru WRX / STI Downpipe to an OEM factory exhaust or aftermarket exhaust is a breeze. Simply select the option you'd like in the drop downs above and we will include all the necessary hardware.
Disclaimer: As sound level and emissions laws vary based on location, please consult your local authorities for additional information.
Please Note: Some aftermarket internally gated turbochargers such as the Cobb 20G, and the Forced Performance Green, MAY have contact with the flapper against the downpipe. See our Wastegate Porting Guide. Further instruction can be supplied to affected customers upon request.
Features
- Semi-divided Cast head pipe to maximize flow and eliminate boost creep!
- Divorced wastegate dump to increase turbine flow!
- 1/2 thick stainless turbo outlet flange
- Extra o2 bung and plug
- Made from 304 stainless steel for superior corrosion resistance and enhanced appearance
- Mandrel-bent tubing throughout optimizes exhaust flow
- Stainless steel flex section reduces stress from engine movement increasing longevity
- Designed to be used with your OEM turbo outlet gasket
- 100% Made in the USA
Applications
- 2008-2014 Subaru WRX*
- 2008-2021 Subaru WRX STI*
- *Will NOT Fit RHD Models
What's in the box?
- One Piece Downpipe
- Adapter Included *Only for Stock Catback Option
- Required Hardware & Gaskets
Installation Instructions
1.) All MAPerformance in-house fabricated parts include a Limited Lifetime Warranty for the Original Purchaser. This warranty only applies to the original purchaser and is non-transferrable. If the product fails it would need to be determined by MAPerformance that it is due to manufacturing defects in materials or workmanship. The purchaser will be responsible for sending the product back, after contacting MAPerformance and reporting the failure. Further instructions will be provided by MAPerformance.
2.) This does not cover normal wear and tear. Improper use, modification, or abuse voids this warranty. MAPerformance will not be held responsible for additional costs due to the failure of a product (cost of sale, towing, labor, etc.). Warranty claims must be submitted to MAPerformance for review. Products that are factory coated must adhere to the break in process. Only products coated by MAPerformance will be covered. Products will not be covered if wrapped.
3.) MAPerformance “Limited Lifetime” Warranty does not apply to all products. Kits, packages, bundles, or any non fabricated parts and products by MAPerformance are not warrantied. Engines and engine assemblies are not warrantied. Cast components are warrantied for 3 years from purchase date.
The pipe and craftsmanship/welds look great. I haven't installed the pipe yet to be able to give a performance review. On top of that, before it's installed, my tuning shop is going to cut out the "high flow" catalyst that came with the pipe, and then weld in an actual GESI catalyst.
Easy install. Great addition to my build.
I love it!!!!!!!
Great product, excellent design, good material!
Amazing customer service! I received help confirming fitment for my car, a great discount, and my part ordered within a few hours. The part arrived in less than a week, way less than the initial 4-6 week estimated delivery. I got it installed and the fitment is indeed perfect. My car sounds and feels great so far! So glad I went with MAPerformance :)
