Active Autowerke Valved Rear Axle-Back Exhaust- BMW F97/F98 X3M/X4M

OVERVIEW

The Active Autowerke F97/F98 rear exhaust was carefully engineered to increase the sound level over the factory X3M and X4M exhaust, while also allowing for optimum flow and resonance by reusing the actuators from the BMW valves. Every effort was made in addressing the overly quiet sound of the stock OEM exhaust while designing an exhaust worthy for an "M" car. Combined with the Active Autowerke mid-pipe and catted downpipes, this offers a complete system upgrade. Available in both models, this axle-back exhaust gives your BMW the deep, throaty growl a car of its caliber should have had from the factory.

SPECS

• Made in the USA
• 304 Stainless Steel
• Low, deep sound with stock valve control
• Each exhaust test-fit on Active Autowerke's F97/F98 exhaust fixture
• Guaranteed to fit all F97/F98 BMW X3M/X4M

PARTS INCLUDED

• 1x rear axle-back exhaust
• All necessary installation hardware

TECH RESOURCES

• Reuses the OEM valve actuators for factory-style valve control.
• Part of a complete Active Autowerke X3M/X4M system — pair with the S58 F97/F98 Downpipe and a mid-pipe (Single Mid-Pipe or Equal Length Mid-Pipe).

PART NUMBER

• 11-103 (Brushed)
• 11-103B (Matte Black)
• 11-103C (Carbon Fiber)
• 11-103CB (Carbon Over Black Chrome)

VEHICLE APPLICATIONS