Focus ST Mk2 Milltek De Cat with 3 inch (76mm) pipework Mongoose which makes them incredibly lightweight

which makes them incredibly lightweight but are also exceptionally strong

compared to the stock core

Proven on Rolling Road dyno's

The OEM hose/alloy pipe arrangement from the turbo to intercooler does fit straight on

Nitrogen pressurised dampers:

Focus ST Mk2 Milltek De Cat with 3 inch (76mm) pipework Mongoose which makes them incredibly lightweightFree UK shipping Features Pipe Diameter 76. 20mm (3 inches) Removes original Cat Allows exhaust gases to flow much faster, More power! Expect more popping & deeper aggresive exhaust sound Gain 10bhp + (depends on spec of your car) Please note. As this removes the original catalytic converter your car will not pass an MOT (UK Emission test) and is not intended for road use