Active Autowerke F3X 340i/440i Performance Rear Exhaust (P/N 11-027)



The system features a straight-through design, providing substantial improvements to gas flow over the factory exhaust. This system does not use the factory flapper valve to change exhaust tones, which eliminates the prolific problem of the valves getting stuck. Instead, the exhaust sound comes out unobstructed, with a rich mellow tone. The system delivers a solid 15+hp, with key gains in the mid-range, making it the exhaust system of choice for avid BMW enthusiasts!

SKU: N/A Category:

Additional information

Weight32 lbs
Dimensions31 × 31 × 10 in
Key Features

– Large mandrel bent piping for maximum flow

– Durable, Brushed 100% 304 stainless steel for durability

– Double-walled 100mm or 90mm Signature Brushed stainless tips

– Adjustable Tips with Embossed Active Autowerke Logo

– Improved power & torque throughout entire RPM band

– Gains of 12-15 HP over stock configuration

– Tight seal with use of TORCA style exhaust clamps

– Height adjustable mounting brackets make installation easy

– Factory exhaust curb weight 27.0 Lbs, Active 340i exhaust weighs 22.0 Lbs

– Fitment for Coupe, Convertible and Sedans

– Complete illustrated instruction manual

– Two year warranty through Active Autowerke

Emission Status

This product is street legal.


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