Milltek Sport Rear Silencer Backbox with GT-80 Cerakote Black Tips for BMW 1 Series 125i (F20/F21) 3 & 5 Door Hatch, B48 Engine Only, 2016-On | OE Twin Left Valance Exit | Performance Stainless Steel Exhaust Upgrade

Milltek Sport Rear Silencer Backbox with GT-80 Cerakote Black Tips for BMW 1 Series 125i (F20/F21) 3 & 5 Door Hatch, B48 Engine Only, 2016-On | OE Twin Left Valance Exit | Performance Stainless Steel Exhaust Upgrade

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Milltek Rear Silencer with GT-80 Cerakote Black Trims for BMW 125i 3 Door and 5 Door Hatch F20 F21 B48 2016 onwards

Upgrade your BMW 1 Series 125i exhaust with the Milltek Rear Silencer featuring GT-80 Cerakote Black tailpipe trims. Designed for the OE twin left valance, this performance rear box is engineered specifically for BMW 125i F20 and F21 models with the B48 engine from 2016 onwards. If you are searching for a premium BMW 125i exhaust, BMW 1 Series F20 F21 rear silencer, GT80 black tips, or a Cerakote black tailpipe upgrade, this Milltek system delivers the sound, quality and style enthusiasts want.

Why choose Milltek for your BMW 125i exhaust upgrade

  • UK designed, developed and hand finished by time-served craftsmen
  • Aerospace grade type 304 non-magnetic stainless steel throughout pipework and silencer
  • Mandrel-bent tubing for optimised gas flow and consistent radius bends
  • Carefully enlarged bore over stock for ultimate performance without losing mid-range torque
  • Comprehensive acoustic tuning for a sporty, crisp tone with no NVH, no drone and no unwanted cabin resonance
  • GT-80 Cerakote Black exhaust trims for a stealthy OE-plus look
  • Direct fitment for OE twin left valance styling on the 125i

Performance sound. Premium materials. Perfect fit.

Every Milltek exhaust component is crafted from high quality T304 stainless steel for long-term durability and resistance to discolouration. The rear silencer is engineered to enhance flow and deliver that signature Milltek sound profile: deeper, sharper and more engaging than stock without the annoying motorway drone. It is the ideal BMW 125i F20 F21 exhaust upgrade for daily driving and spirited use.

Fitment and compatibility

  • Vehicle: BMW 125i 3 Door and 5 Door Hatch
  • Chassis: F20 and F21
  • Engine: B48 only
  • Model years: 2016 onwards
  • Valance: OE twin left exit
  • Tailpipes: GT-80 Cerakote Black trims GT80 black tips

Real-world results

We have installed and driven this Milltek rear silencer on customer BMW 125i builds and the feedback has been consistently positive. Owners love the refined but sporty exhaust note, improved responsiveness and the premium look of the GT-80 Cerakote Black tips against the OE twin left valance.

Professional fitting by Nforcd

Want it fitted properly the first time We recommend professional installation at Nforcd in Warwickshire. Email Sales@nforcd.com to request a fitting quote and availability.

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If you need fitment advice or want help choosing the right BMW 125i F20 F21 exhaust parts, contact the Nforcd team and we will be happy to help.