Active Autowerke BMW B58 M240i 340i M340i 440i M440i X5-40i X3-40i X3-M40i X7-40i 540i 640i 740i GESI Catted Downpipe (2024 and older) mad max F8x Mid-Pipe to Stock BMW

F8x Mid-Pipe to Stock BMW Rear (Resonated)

Improves heat transfer and reduces cylinder head temperature

Key Features: 40 Rwhp and 40 Ft lbs of torque Increases Higher torque over factory settings through RPM range Recalibrated settings for a smoother and more responsive part throttle transition Recalibrated settings for a smoother and more responsive power delivery Ability to tune all DME's Top speed limiter removed Tune available for 91 or 93 octane fuel

Through careful remapping to the BMW DME

Active uses silicone in this area because it will not contribute to heat soak and it's easier to mold for the correct clearances

Active Autowerke BMW B58 M240i 340i M340i 440i M440i X5-40i X3-40i X3-M40i X7-40i 540i 640i 740i GESI Catted Downpipe (2024 and older) mad max F8x Mid-Pipe to Stock BMWNO PERFORMANCE TUNE NEEDED. Active Autowerke BMW B58 Catted Downpipe now includes turbo flange gasket SHIPPING NOW. Please note that we install the gasket into the downpipe flange as some customers were damaging the gasket on installation. NOTE: Fitment applies to US model cars only unless specifically stated. We cannot guarantee fitment to non US model cars. BMW introduced a new valvetronic, single turbo version of its direct injection engine for the