Active Autowerke 2008-2013 BMW E9X M3 Signature Rear Exhaust Gen. 2

True performance, durability, and attractive weight advantages with innovative features places the Active Autowerke E9X BMW M3 exhaust in a class of its own. This system is constructed from 100% 304-stainless steel and features adjustable Active Autowerke double walled tips, making it ideal both for 2-door and 4-door models (also allows for cleaner fitment with diffusers).

This system uses factory style flanges making it a complete bolt on system that requires no cutting or welding. The system is a straight-through design providing substantial improvements to gas flow over the factory exhaust.

The sound is unobtrusive, with a rich mellow tone and delivers a solid 5+hp, with key gains in the mid-range. In addition, the Active Autowerke E9X M3 Signature Exhaust system features large 3″ piping for maximum exhaust flow while maintaining enough back-pressure to result in horsepower increases across the entire RPM range.

The factory E9X M3 muffler features a Noise Canceling Chamber inside the muffler and Active Autowerke has retained this feature by adding two custom Active Autowerke noise canceling chambers (NCC)on each muffler to reduce/minimize the drone (the ‘booming’ noise some muffler emit at cruising speeds, ~3500 rpm).

The Active Autowerke E9X M3 Signature Exhaust System provides increase in horsepower, great sound and appearance making it a must for the true M3 enthusiasts.

Features:

• Large 3-inch mandrel bent piping for maximum flow
• Durable, 100% 304 brushed stainless steel
• Double-walled 76mm Signature stainless tips
• Revolutionary NCC -Noise Cancelling Chamber
• Adjustable Tips with Embossed Active Autowerke Logo
• Improved power & torque throughout entire RPM band
• Gains of 5+ HP over stock configuration; Additional HP with our programmed software
• BMW factory style hardware makes a truly easy installation with no need for cutting or re-welding
• Weighs 40 Lbs vs. the factory of 55.1 Lbs.
• Fitment for Coupe,Convertible and Sedans
• Complete illustrated instruction manual
• Two year warranty

 Installation Instructions

Brand

Active Autowerke

Looking to wake up your car and make your BMW "Active?" We can help. Active Autowerke has a full lineup of BMW accessories, catted down-pipes, exhaust rear systems and more. All of our products are the result of decades of research and development; and we make use of only the highest quality materials and manufacturing methods are used. If you're looking for the most powerful, most durable, and most fun performance parts for your BMW, start by browsing our offerings below!