BMW 1 Series M140i 3 & 5 Door (F20 & F21 LCI). (SSXBM1040). Milltek Sport Authorised Dealer. A Milltek Stainless Steel Cat Back Exhaust. MSAU529x2 - Polished Tip Assembly Twin 90mm GT90. Milltek Sport exhausts are produced in high quality type 304 aircraft grade stainless steel.
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