This product is a must for any enthusiast searching for true performance, added durability and an attractive weight advantage. This system is constructed from 100% polished 304-stainless steel and features adjustable 80 mm double walled tips, making it ideal both for two-door and four-door models (which also allows for cleaner fitment with diffusers).

This exhaust delivers everything we know you would want in a performance exhaust: eye-catching style, a sophisticated yet aggressive tone, weight savings, and – most importantly – measurable horsepower performance gains!

The factory counterpart weighs 29 lbs. while the Active Autowerke Signature exhaust weighs only a mere 19 lbs. Weight savings are not the only attributes, this performance exhaust has a modular design with its v-band clamps that makes fitment a snap.

On the in-house Active Autowerke Mustang dyno, their otherwise 100% stock 2013 328I test mule spun the rollers to the tune of an extra 9 RWHP, and 13 LB-FT of torque.

**Exhaust system requires cutting of the factory pipe for installation. Dimensions and cutting measurements are included in the instructions.**

*Some models have a round tubular pipe that makes the installation seamless. Other models have an oblong shape and will require welding instead of clamping.

Features:

• Larger diameter mandrel bent piping for maximum flow
• Durable, polished 100% 304 stainless steel
• Double-walled 80 mm signature stainless tips
• Adjustable tips with embossed Active Autowerke logo
• Improved power & torque throughout entire RPM band
• Actual dyno measure results with gains of 10 + WHP over stock configuration
• Weighs 19 lbs. vs. the factory of 29 lbs.
• Fitment for coupe, convertible and sedans
• Complete illustrated instruction manual
• Two year limited warranty included