Stainless Works 2015-16 Mustang Downpipe 3in High-Flow Cats Factory Connection

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...

Shop premium Stainless Works exhaust systems, long tube headers, cat-back exhausts, axle-back exhaust components, downpipes, high-flow catalytic converters, mufflers, exhaust tips, X-pipes, Y-pipes, tubing, flanges, collectors, adapters, and exhaust fabrication parts at Black Ops Auto Works. Stainless Works is a trusted performance exhaust brand known for American-made exhaust products built for sound, fitment, durability, corrosion resistance, and horsepower gains across cars, trucks, SUVs, muscle cars, off-road builds, and custom performance projects. Shop Stainless Works Headers, Exhaust Systems & Exhaust Components This collection includes popular Stainless Works product categories such as: Stainless Works long tube headers Stainless Works cat-back exhaust systems Stainless Works axle-back exhaust components Stainless Works downpipes Stainless Works high-flow catalytic converters Stainless Works mufflers and resonators Stainless Works exhaust tips Stainless Works X-pipes, Y...