Details
Active Autowerke Rear Exhaust System 3 Can w valves (maad maxx) – metal over black chrome (2014+ M3 / M4) - 11-073BCB
At Active Autowerke, it's not ONLY about making as much power as possible.
For over 30 years, power has been the end result of improved performance
due to our relentless desire to develop a refined, quality product. This
philosophy behind our performance parts is best represented by one of the
newest additions to our F80 BMW M3 and F82 BMW M4 collection.
The Active Autowerke F8X rear exhaust was carefully engineered to eliminate
the unflattering sound of the factory M3 and M4 exhaust, while also
allowing for optimum flow and resonance. Every effort was made in
addressing the not so appeasing sound of the stock OEM exhaust, but in
designing an exhaust worthy for an "M" car. We believe our rear exhaust
combined with our mid-pipe offers the deepest sound and best performance of
any other system on the market today. Available for both models, this
axle-back exhaust gives your BMW the deep, throaty, growl a car of its
caliber should have had from the factory! And NOW, after many requests from
our dedicated customers, we are introducing a valved version of the
ultimate exhaust which has been dubbed "Maad Maxx" by our team. We will
update dyno charts later but this exhaust flows even better with its valved
system.
See what actual customers are saying on BimmerPost!
***Before your order ships you MUST sign and return the Off Road Use Only
Waiver available HERE. Please email, fax or take a photo of the completed
form. You can email it to your sales rep or to info@activeautowerke.com and
you can fax it to us at (305) 253-8921***
*W
hen paired with Active Autowerke F8X Mid-Pipe
RED Line Stock Figures: 380 WHP | 371 WTQ
BLUE Line Full Active Autowerke Exhaust: 398 WHP | 401 WTQ
GOLD Line Full Active Autowerke Exhaust Run 2: 397 WHP | 398 WTQ
Note: Active Autowerke Full Exhaust System is recommended for, BUT NOT LIMITED
TO, off-road or racing applications.
The OEM F8X exhaust utilizes the services of middle and rear silencer as
well a pair of exhaust valves. It is supposed to be a freely-flowing
exhaust that produces an external sound that meets the demands of a M3 or
M4.
The middle silencer has a small crossover that allows for noise dampening
while the rear silencer (muffler) has a reflection chamber on either end
that re-directs exhaust gases to the opposite side they entered from
(drive's side exhaust exits on passenger side). When the exhaust valves are
closed, this helps eliminate the back pressure buildup that occurs during
noise dampening.
After analyzing the factory exhaust, we realized less would be more in
regards to our F8X exhaust.
We began with a complete redesign of the mid-pipes. This involved
drastically increasing exhaust flow as well as reducing the uneven,
out-of-sync turbocharger's sound that many F8X owners have complained about
on the forums. We were able to achieve this on our F8X Mid-Pipe (sold
separately) by using a single pipe that not only cancels out the offensive
sound, but allows unrestricted exhaust flow.
The most noticeable difference between the Active Autowerke F8X Rear
Exhaust Section and the BMW factory exhaust is how we utilized the muffler.
Our design incorporates two mufflers that create a huge resonance chamber
to further cancel out the weed eater noise.
This design also allows exhaust gases to crossover freely without being
forced in a certain direction - eliminating back pressure without
sacrificing that deep, aggressive rumble that some turbocharged cars are
known for.
Note: Active Autowerke GUARANTEES that each and every F8X Rear Exhaust
Section will be a precise fit. Every Active Autowerke F8X Rear Exhaust
Section is test-fitted on our in-house F8X Exhaust Fixture as part of our
quality control measures.
