BMW 125i F20/F21 B48 (2016+) Milltek rear silencer bypass non-valved with GT-90 tips

Direct bolt-on rear silencer bypass for F20/F21 125i models with B48 engine (2016+). No cutting, no welding - just louder, sharper throttle response and zero drone.

• Non-valved T304 stainless steel system, UK made and mandrel bent
• GT-90 polished tailpipe tips fit M135i-style rear valance
• Aggressive motorsport tone at all revs - ideal for fast road or track day use
• Proven real-world gains: improved exhaust flow, consistent sound, no cabin resonance