The system fits only on hatchback version (W177).Providing a stunning sensory experience, this lightweight exhaust is beautifully crafted from high-grade titanium and finished with an eye-catching design of two pairs of titanium and carbon-fibre tailpipes. The exhaust valve – with its housing cast in the in-house foundry – gives the sound from the exhaust a richer and higher frequency than stock, especially when shifting through the gears, all allied to a smooth sound that enhances the car’s engine tones without any discomfort or drone for the occupants. A specially designed perforated manifold tube on the valve side eliminates streaming without any compromise to the pressure pulse distribution, thus offering a stronger sound. Lighter than stock due to the use of titanium and a different configuration, the design and construction of the exhaust leads to optimization in the power and torque levels throughout the entire rev range. The optimized flow path of exhaust gases provides greater tuning potential, something that can be realized further with the addition of the optional Evolution Link pipe set (SS). When installing the optional Evolution Link pipe set (SS), the ECE type approval for the Slip-On Line (Titanium) exhaust system is no longer valid. The system only fits and is ECE type approved for cars equipped with Otto/gasoline particulate filter.For installing the Slip-On system, the stock exhaust system must be cut. Please read the instructions carefully before starting installation.