Milltek Hi-Flow Sports Cats With HJS 200 Cell Cat and OPF/GPF Bypass - RS4 B9 R8 4.2 Chevrolet HHR SS (2008-2011)

Chevrolet HHR SS (2008-2011)

When it needs it

right throughout the car's rev-range

With the AIRTEC intercooler upgrade fitted

fan and the original coolant connectors

Milltek Hi-Flow Sports Cats With HJS 200 Cell Cat and OPF/GPF Bypass - RS4 B9 R8 4.2 Chevrolet HHR SS (2008-2011)Every Milltek system is designed, developed and hand finished here in the UK by time served craftsmen, each one produced in aerospace grade type 304, non magnetic stainless steel. This superior material is less susceptible to discolouration, lasts almost indefinitely and is used throughout the entire construction of our pipework, silencers and associated hardware. Mandrel bending ensures constant radius bends for optimised gasflow, and bore diameters