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These trimming kits are easily installed using the provided materials
Comfortable
The open cotton filter system with the pro hose helps create the perfect under bonnet look whilst also increasing power output and also enhancing the induction sound for louder recirculation (dump valve chatter) and louder turbo spooling noises creating one of the best sounding induction kits available for the st180
Expect to see gains of 5-10bhp compared to the original Airbox
Milltek BMW 1 Series M140i 3&5 Door (F20 & F21) (GPF only) (19-21) Cat-back Resonated – Burnt Titanium GT-90 – SSXBM1114 straight These trimming kits are easilyMilltek BMW 1 Series M140i 3&5 Door (F20 & F21) (GPF only) (19 21) Cat back Resonated Burnt Titanium GT 90 SSXBM1114 System: SSXBM1114 Silencer (if applicable): Resonated Tips (if applicable): Burnt Titanium GT 90 Pipe Diameter: 66. 5mm 2. 62 GPF Back Resonated with Burnt Titanium GT 90 Trims EC Approved Cat back by Milltek, awesome sounding and fierce performance. Why a Milltek exhaust? Milltek Sports exhaust systems have a genuine performance edge