The aFe Twisted Steel Street Series downpipe for 2015–2019 MINI Cooper S (F55/F56/F57) L4-2.0L is a direct bolt-on 3" to 2-3/4" mandrel-bent, 304 stainless steel downpipe with a high-flow 400 CPSI catalytic converter and CNC-machined flange. In-house dyno testing shows gains up to +16 HP and +20 lb-ft torque; it includes a third O2 bung, heavy-duty flex sections and hardware for a no-cut installation.
aFe Twisted Steel Street Series Down-Pipe 14-19 MINI Cooper S L4-2.0L (t)