Active Autowerke X3M and X4M Valved Rear Axle - back Exhaust (11-103C)

Active Autowerke X3M and X4M Valved Rear Axle - back Exhaust (11-103C)The Active Autowerke Valved Rear Axle Back Exhaust is engineered exclusively for the BMW X3M (F97) and X4M (F98) to enhance the sound quality and performance of the stock exhaust system. Designed to address the overly quiet factory exhaust, this system retains the original BMW valve actuators to maintain functional valve control while delivering a deeper, more aggressive exhaust note. Made in the USA from 304 stainless steel Low, deep sound

The Active Autowerke Valved Rear Axle-Back Exhaust is engineered exclusively for the BMW X3M (F97) and X4M (F98) to enhance the sound quality and performance of the stock exhaust system. Designed to address the overly quiet factory exhaust, this system retains the original BMW valve actuators to maintain functional valve control while delivering a deeper, more aggressive exhaust note.

• Made in the USA from 304 stainless steel
• Low, deep sound enhancement with stock valve control
• Test-fitted on F97/F98 exhaust fixture to guarantee fitment
• Includes all necessary installation hardware
• Fits all F97/F98 BMW X3M and X4M models

This axle-back exhaust is part of a comprehensive Active Autowerke full exhaust solution that includes a single mid-pipe and GESI catted downpipes for those seeking the most notable sound upgrade. While the rear exhaust provides a subtle sound improvement alone, pairing it with the mid-pipe and downpipes delivers the full performance and acoustic benefits intended for a true M-car driving experience.

Note: There is a version available for customers wishing to only replace the rear section while retaining stock mid-pipes. However, upgrading to an Active Autowerke or aftermarket mid-pipe later may require replacing connecting pipes and additional charges may apply.