MAPerformance Downpipe Upgrade | 2008-2021 Subaru STI (STI-4G-DPC-REV2)
MAPerformance*SEE DETAILS
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.
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
- Required Hardware & Gaskets
Installation Instructions
Warranty
- MAP Limited Lifetime Warranty
Customer Reviews
Put this on my 2018 sti. Very happy with it. Good quality no cel. Just fyi it does make the exhaust quite a bit louder, but it sounds very nice in my opinion.
I absolutely loved it as soon as i opened the box lol it fits nicely around the turbo and I love the gaskets tvey provide. 5,000x better than the oem. After installing that and a couple other things, i pit the base map on it and no cel so far. This wanted this one specifically for that reason! It’s definitely worth it but make sure you tune your car after installing.
Craftsmanship was great and sounds awesome, but unfortunately I could not get my setup tuned with a Cobb 20g, the wastegate flap of the turbo can't open all the way and it was making too much boost to safely tune. This was my fault for not researching more, so not knocking the company, but something to consider if you are running the Cobb 20g.
Fantastic upgrade for my 2012 wrx hatch. Great customer service with MAP. Highly recommend.
As soon you open package, you can tell it was build nicely and with top quality metal. Fit perfectly fine!
