Active Autowerke Axle Back Exhaust for 1999-2006 BMW M3 [E46]

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Designed specifically for the BMW E46 M3, the all-stainless steel Active Autowerke is their most innovative cat-back exhaust to date. Its precision-tuned straight-through design with in line resonators offers an incomparable combination of power, sound and styling. Well suited to both naturally aspirated and supercharged vehicles, this new and revolutionary design employs inspired pipe routing and optimum diameters to enable the Gen 6 to literally unleash horsepower without restrictions.

Sporting the same classic 80mm tips like the earlier versions, everything else about the Gen 6 is new. It’s lighter, stronger and more robust – with a distinct sound unique to the generation.

Does it work? You bet it does. Performance gains of 5-7 peak rear WHP can be expected. Is it really that free-flowing? Comparison dyno tests were run on an E46 M3 with no rear exhaust vs. one with the Gen 4 system installed. Zero power loss was measured with the Gen 6 in place. Like we said, this thing is practically invisible! But you can sure hear it. Just listen for the rich, low frequency tone at idle to moderate RPMs. And the distinct, robust sound at higher RPMs – validating Gen 6’s superb performance characteristics.

Sporting a newer, more rounded look; an aerodynamic fit; high-polish finish and quad 80mm straight tips, this rig is considered by many enthusiasts to be the sleekest, most aggressive exhaust around. Installation is simple, utilizing all the stock mount points with no rear valance mod required.
This product comes complete with full limited warranty.

Product Features
  • Quad 80 mm stainless steel tips
  • Polished 100% 304 stainless steel
  • Distinct, sporty Gen 6 sound
  • Proven to support over 600+ HP
  • Dyno-tested to perform
  • Large inlet pipes with super high-flow design
  • Round curving muffler design for that aerodynamic fit
  • Illustrated instruction manual
  • Two year limited warranty with free tech support
  • Easy bolt-on installation; factory-comparable
Active Autowerke Benefits
  • Replace restrictive factory muffler
  • Enlarge the rear-most pipes
  • Reduce the number and severity of bends in the system
  • Weight reduction from stock muffler in most cases
  • A better looking exhaust tip
  • Polished muffler
  • Throatier and louder sound to enhance your car overall

Installation Guide:


Active Autowerke High Flow Exhaust E46 M3

Active Autowerke High Flow Exhaust E46 M3

Active Autowerke Warranty
Active Autowerke warrants its Stainless Steel Exhaust against rust-through. This exhaust system also carries a two year warranty against defects in workmanship and materials. Any “claimed defective” exhaust must be removed and shipped to Active Autowerke at the buyer’s expense with proof of the original purchase date. After inspection, Active Autowerke will, at our option, repair or replace the defective product. All parts for which repairs or replacements are made became the property of Active Autowerke. Damages caused by abuse or altered in any way are not covered by this warranty. This exhaust is tuned for high performance use and we do not warrant sound quality. Active Autowerke warranties are not transferable when ownership of the product or a vehicle on which it was originally installed and sold. This warranty stated above is the only warranty, expressed or implied, of this product. In no circumstances will Active Autowerke be responsible for any consequential or incidental damages or charges.

Active Autowerke High Flow Exhaust E46 M3

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