Active Autowerke Race Downpipes – BMW M5 (F90)

OVERVIEW

For over 30 years Active Autowerke has been the name to turn to for high quality BMW performance products, and these S63TU downpipes are the newest addition to their F90 M5 collection. They are strategically engineered to virtually eliminate the immensely restrictive characteristics of the factory M5 downpipes, reducing radiant heat and delivering a significant increase in horsepower and torque throughout the powerband along with reduced turbo lag and a more aggressive exhaust note. Each set is manufactured in house from 304 stainless steel, meticulously TIG welded and checked for perfect fitment, and accepts the OEM O2 sensor heat shield so the engine bay remains stock-looking for a sleeper build.

SPECS

• 304 stainless steel construction
• Manufactured and TIG welded in house in the USA
• Factory-matched 3.5" v-band inlet tapering to a mandrel-bent 3" body
• Includes the lower section sold by others as a separate "mid-pipe"
• Accepts the OEM O2 sensor heat shield for a stock-looking engine bay
• Significant increase in horsepower and torque throughout the powerband
• Reduced turbo lag
• Reduced radiant heat versus the factory downpipes
• Aggressive exhaust note
• Guaranteed fitment
• Designed for off-road or race track use only
• Made to order — may take up to 1 week before shipping

PARTS INCLUDED

• Pair of Active Autowerke S63TU race downpipes (304 stainless steel)
• Lower section (the part sold by others as a separate mid-pipe)

TECH RESOURCES

Additional Parts Required

• Off-road flash tune — required. These race downpipes have no catalytic converters and will set a check engine light on the stock tune. A tune with the catalyst monitors removed is required: Bootmod3 S63TU4 Tune – BMW M5 / M8 / X5M / X6M (F9x) or MHD Super License – BMW S63 (M5 / M6 / M8). MHD flashing requires the MHD Universal WiFi Adapter.
• No additional hardware is specified by Active Autowerke. The OEM O2 sensor heat shield is re-used if you wish to retain the factory appearance.

Installation

• Active Autowerke does not publish a separate installation manual for the F90 M5 downpipes. Speed Logic offers professional installation — contact us to schedule an install.

Notes

• NOTE: These downpipes are designed for off-road or race track use only. May take up to 1 week before shipped as they are made in house.
• Active Autowerke supplies this downpipe set through dealers. Confirm fitment with Speed Logic before ordering.

PART NUMBER

• 11-052

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