Turbo XS 02-07 WRX-STi / 04-08 Forester XT High Flow Catted Downpipe

The downpipe is the first section of the exhaust system after the turbocharger, and on most factory turbocharged vehicles it is also the single most restrictive exhaust component due to its large catalytic converter and tight mandrel bends. Turbocharged car enthusiasts who shop for aftermarket downpipes range from street-driven daily drivers looking for a bolt-on power and sound improvement to track-day and time attack builders prioritizing maximum flow on tuned builds with larger turbos. Upgrading the downpipe removes the primary restriction in the turbocharged exhaust path and can produce measurable gains in peak horsepower, turbo spool time, and exhaust note character when properly paired with an ECU calibration. Well-known platforms that benefit strongly from downpipe upgrades include the Subaru WRX and STI with the EJ205 and EJ257, the Volkswagen GTI EA888, Ford Mustang EcoBoost 2.3L, Mitsubishi Lancer Evolution 4B11T, and the BMW N54 and N55 engines.Popular UpgradesTop afterma...

Black Ops Auto Works carries one of the largest selections of performance exhaust systems available online, with 7,700+ products covering cat-back exhausts, axle-back exhausts, turbo-back systems, downpipes, headers, mid-pipes, X-pipes, H-pipes, mufflers, resonators, catalytic converters, exhaust tips, and every component in between. Whether you're building a street car, a daily driver, a diesel truck, or a track build, the right exhaust upgrade is here. Shop by Exhaust System Type Cat-Back Exhaust Systems: The most popular performance exhaust upgrade. Replaces everything from the catalytic converter back for improved sound, better flow, and premium tip styling. Available in single exit, dual exit, and quad exit configurations. Axle-Back Exhaust Systems: A simpler bolt-on that replaces the rear section from the axle back. Best for drivers who want an improved exhaust note and cleaner tip appearance without a full system swap. Headers and Manifolds: Long tube headers and shorty h...

TurboXS has manufactured performance parts for turbocharged vehicles since 1999, specializing in blow-off valves, intercooler kits, turbo inlets, downpipes, and boost control products engineered for popular turbocharged import and domestic platforms. TurboXS products are known for precise fitment and proven performance on Subaru, Mitsubishi, and other turbocharged sport compact platforms. Popular TurboXS Products The TurboXS product lineup includes recirculating and atmospheric blow-off valves compatible with the Subaru EJ and FA series engines, top-mount and front-mount intercooler kits for the WRX and STI, high-flow turbo inlets and charge pipes, race downpipes with high-flow catalytic converters, and boost controller kits for managing boost pressure on modified turbocharged applications. TurboXS has been a trusted name in the Subaru performance community for over two decades. What vehicles does TurboXS support? TurboXS specializes in parts for the Subaru WRX and STI across multip...