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Proven in CSF’s in-house wind tunnel
Backplate coated in Nucap NRS hooks for maximum bond strength
The matte black finish makes for the perfect OEM+ look
The patented KW-valve technology for separate adjustment of rebound and compression damping allows you to individually setup your suspension
Suitable for standard and fast road use
Milltek GPF Back Exhaust System for BMW M135i X Drive (F40) M140i (F20 & F21) SUSPENSION Proven in CSF’s in-house windOur range of Cat Back systems are perfectly suited to cater for anyone looking to improve their sound and aesthetics, designed as a direct replacement for the original system, available in multiple configurations enabling the owner to choose the increase in the volume of their exhaust and or add a more suitably aggressive tone. All our products are made from 304L Aircraft Grade stainless steel. This quality material will ensure that your Cat Back
