RPM Performance – BMW 118d B47 F20/F21 LCI (2015-19) Exhaust Back Box Delete

Enhance the sound and performance of your BMW 118d (B47, F20/F21 LCI, 2015–2019) with the RPM Performance Back Box Delete Exhaust — a precision-engineered upgrade designed to deliver a sharper exhaust tone, improved flow, and exceptional durability.

Proudly designed and manufactured in the UK, this system refines the exhaust note and enhances performance while retaining the original factory layout. It offers a noticeable improvement in character without compromising everyday usability or compliance.

Each RPM Performance exhaust is CNC mandrel-bent from premium T304 stainless steel to ensure exact fitment, strength, and corrosion resistance. Every system is professionally TIG-welded by hand in the UK, reflecting a commitment to craftsmanship and long-lasting quality.

Fully MOT compliant and remaining within legal decibel limits, this exhaust provides an ideal balance between enhanced sound and practicality. It features a 3.5-inch polished stainless steel exhaust tip for a clean, sporty finish and comes supplied with all required clamps and fittings for a straightforward installation process.

The RPM Performance Back Box Delete Exhaust is the perfect upgrade for BMW 118d owners seeking a deeper, more engaging exhaust note, subtle performance gains, and a simple, fully reversible installation.

SKU: RPM-BMW-118DBBDB47

KEY FEATURES

• Direct fitment for BMW 118d B47 F20/F21 LCI (2015–2019)
• Fully MOT compliant – remains under legal decibel limits
• T304 stainless steel construction for maximum strength & corrosion resistance
• Handmade in the UK with professional TIG welding
• Comes with a 3.5" polished stainless steel exhaust tip
• Supplied with all required clamps & fittings for easy installation