Stainless Works 2016-18 Ford Focus RS 3in High-Flow Cats Downpipe 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...

Performance exhaust systems improve exhaust sound, flow, appearance, and driving character for cars, trucks, SUVs, Jeeps, diesel vehicles, and high-performance builds. Shop more than 7,400 cat-back exhausts, axle-back systems, headers, downpipes, mid-pipes, X-pipes, H-pipes, mufflers, resonators, catalytic converters, exhaust tips, valve controllers, and installation hardware at Black Ops Auto Works. This collection includes exhaust upgrades from trusted brands such as Borla, CORSA Performance, MagnaFlow, MBRP, Kooks Headers, AWE Tuning, Akrapovič, Thermal R&D, Solo Performance, Invidia, Gibson, BBK, Stainless Works, Mishimoto, HKS, ISR Performance, Fabspeed, Granatelli, Formula Z, and CornerStone Performance. Use the filters to shop by vehicle, exhaust type, material, pipe diameter, exit configuration, tip finish, sound level, and emissions requirements. Shop Performance Exhaust Systems by Category Choose the exhaust category that matches your performance goal, preferred sound,...

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...