BMW 318D F30 F31 LCI Back Box Delete / Rear Silencer Delete – Dual Exit Exhaust Upgrade



Transform the sound and look of your BMW with our RPM Performance dual exit exhaust conversion. Designed specifically for the BMW 318D F30 & F31 LCI (2015–2019 B47 models), this back box delete / rear silencer delete offers improved flow, and a premium dual-exit finish.

Unlike standard exhausts on the market, our system is CNC mandrel-bent from high-grade T304 stainless steel for maximum performance, durability, and sound quality. Each kit is handmade in the UK and TIG welded to perfection.

Key Features & Benefits

• Direct Fitment: Fits BMW 318D F30 / F31 LCI (2015–2019 B47 models only)
• Dual Exit Design: Supplied with 3.5” polished stainless steel tailpipes for an aggressive OEM+ look
• Reversible Installation: Can be returned to stock with an additional sleeve clamp
• MOT Compliant: System is under UK decibel limits, road-legal for everyday use
• Premium Build Quality: CNC mandrel bent, TIG welded, and built from T304 stainless steel for long-lasting performance
• Complete Kit: Includes all clamps and fixings required for installation

Fitment Notes

• Fits BMW 318D F30 / F31 LCI (2015–2019 B47 diesel models only)
• Requires a dual exit rear diffuser for correct installation

Why Choose RPM Performance?

• Over a decade of experience in performance exhaust manufacturing
• All products handmade in the UK by skilled fabricators
• Designed to improve sound, flow, and aesthetics without compromising daily drivability
• Built to last using corrosion-resistant stainless steel

This BMW 318D performance exhaust upgrade is the ultimate choice for enthusiasts who want a back box delete / rear silencer delete that looks and sounds great while staying fully road legal.

SKU: RPM-318D-DBBD