Heart & Industry

Home · Imperial Performance

Quad Exit BMW 3-Series Touring (G21) Rear Panel Diffuser

Quad Exit BMW 3-Series Touring (G21) Rear Panel Diffuser

Imperial Performance

£191.93

Fits: G21 Estate Models with M-Sport bodykit. This lower rear diffuser panel fits G21 Touring models and attaches directly to the OEM fitting points of the M-Sport rear bumper. Specifically designed to be fitted in conjunction with the Cobra Sport quad exit performance exhaust conversions for the BMW 3-series. This lower rear diffuser panel allows the conversion of the G21 models to a quad exit exhaust system and fits directly to the OEM fitting points of the M-Sport bumper for perfect fitment whilst also being extremely lightweight. The diffuser panel is supplied with everything you need for

Imperial Performance's own words, read from their page.

Buy from IMPERIAL PERFORMANCE LIMITEDIMPERIAL PERFORMANCE LIMITED is a UK retailer, not the maker. Price seen 2026-09-21. Not an affiliate link, we earn nothing from it.

Where this comes from

The part other shops don't tell you. Three separate questions, kept separate on purpose, each with its source.