Primary and secondary BMW F90 M5/M5C & G15/G16 M8/M8C RACE DOWNPIPE SET

SLE Performance Race Downpipes for BMW F90 M5 & G15/G16 M8

SLE’s race downpipes are designed to improve exhaust flow, reduce restrictions, and enhance overall performance. They replace the factory components with a high-flow design, allowing for better efficiency and a more aggressive exhaust note.

Using advanced CAD technology, these downpipes ensure a precise fit while being made from durable cast T304 stainless steel. Each unit is TIG welded and back-purged to maintain strength and reliability under demanding conditions.

The result is a deeper, more pronounced exhaust tone, especially during downshifts, with sharp, crisp shifts under acceleration. When paired with the factory exhaust, the sound remains refined yet sporty. With an aftermarket system, the tone becomes even more aggressive.

Product Features

• 80mm (3.15”) diameter piping for improved flow
• Designed and tested in real-world conditions
• High-quality cast T304 stainless steel construction
• TIG welded and back-purged for durability
• Direct replacement for restrictive factory components
• Noticeable power improvement without compromise
• Sporty exhaust note—subtle when cruising, aggressive under load
• No drone when used with the factory exhaust

Vehicle Compatibility (S63 Engine Models Only)

• 2018-2024 BMW F90 M5 (Including Competition Models)
• 2019-2024 BMW G15/G16 M8 Coupe, Convertible & Gran Coupe (Including Competition Models)

Note: A proper stage 2 tune is required to prevent a check engine light (CEL).