The mountune v3 cat back exhaust for the mk3 focus rs is the result of countless hours of engineering and ongoing product development, offering a product that is simply unrivalled in terms of performance, sound and features. Extensive effort was placed on producing a sound profile that replicated the personality of the rs, with an aggressive note under full throttle, while maintaining a drone-free experience during cruising and light throttle.produced from 304 series, 3" mandrel bent stainless steel tubing. The mountune v3 cat back exhaust also includes many features used in motorsport applications; each tube joint is connected by either v-band or custom double slip-joint, ensuring the best seal possible while maintaining adjustability and lightness.
Large 4.5" laser-etched polished tailpipes join the rest of the system via v-band to allow even easier trim adjustment and future system customisation.

features:

3" stainless steel tubing
4.5" laser-etched polished tailpipes
includes new exhaust valve (motor assembly will need to be swapped from oe exhaust and is shown for illustration)
v-band / double-slip joints throughout
high-flow rear silencer design
10% lighter than oe system
supplied with all required clamps and hardware
compatible with oe downpipe / catalyst and mountune downpipe / sports catalyst.