Exhaust› Exhaust Pipes, Systems and Components

MAPerformance

Downpipe

$699.99

SKU: MAP STI-4G-DPC-REV2

In Stock
In Stock
Ships by Sep 12
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

It replaces the restrictive OEM downpipe to help your car reach its true power potential. This downpipe is built in-house with durable materials and features to improve performance and longevity.
Show original supplier description
This component is constructed from 3-inch mandrel-bent 304 stainless steel piping, featuring a semi-divided cast head pipe and a 1/2-inch thick stainless steel turbo outlet flange. Designed for durability and performance, this downpipe boasts a divorced wastegate dump to increase turbine flow and is 100% Made in the USA. Necessary hardware and gaskets are included for installation, with an adapter provided specifically for stock cat-back applications. This downpipe is compatible with 2008-2014 Subaru WRX and 2008-2021 Subaru WRX STI models. However, it will NOT fit RHD (Right-Hand Drive) models. Additionally, users with certain aftermarket internally gated turbochargers, such as the Cobb 20G and Forced Performance Green, may experience contact with the flapper against the downpipe. This can typically be resolved through end-user modification without voiding the warranty, and MAPerformance offers guidance on their Wastegate Porting Guide.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandMAPerformance
Part NumberMAP STI-4G-DPC-REV2
CategoryExhaust

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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