Rieger Gloss Black Rear Diffuser / Lower Valance for BMW 1 Series M135i M140i (F20/F21, 2015+ LCI) - Twin Exit Rear Bumper Insert, OEM+ M Performance Style Rear Splitter/Lower Trim/Undertray

Transform the rear of your BMW 1 Series with a premium high gloss black lower valance designed specifically for the M135i and M140i. This stylish rear under-bumper piece delivers an aggressive, OEM+ look while retaining factory practicality for daily use.

• Designed to suit BMW 1 Series M135i and M140i models from May 2015 onwards LCI
• Fits F20 5-door Hatch and F21 3-door Hatch
• High gloss black finish with no painting required
• Automotive-grade ABS construction for durability and great fitment
• Twin outlets with cut outs on both sides to accommodate the original exhaust tailpipes
• Supplied with a full fitting kit
• Fitment note: only suitable for M135i & M140i variants

Looking for a BMW 1 Series rear valance upgrade that enhances the stance without looking out of place? This gloss black rear lower apron gives your M135i or M140i a performance-inspired finish, often described as an OEM-style diffuser upgrade. It is a popular choice for owners searching for terms like BMW F20 rear diffuser, F21 rear splitter, M Performance style rear trim, twin exit rear bumper insert, rear bumper lower trim, and gloss black rear undertray for M135i M140i. The sleek, paint-free finish makes it a perfect styling mod for those who want a clean, factory-quality appearance with added road presence.

We have installed this on customer cars and been impressed with the fit, finish and overall transformation. Our customers love the smart gloss black look and how well it integrates with the factory rear bumper and standard dual-exit exhaust layout.

Professional fitting available. Book installation with MJ Modifications in Warwickshire. For a quote, email info@mjmodifications.co.uk.