Active Autowerke BMW 33i Exhaust on BMW 328i - cold start and revs

In this video -- I give you the cold start sounds from a freshly installed Active Autowerke axle back exhaust on my BMW 328i. I used the exhaust designed for a BMW 335i F30 as I was interested in a symmetrical dual tip exhaust system. What I have found is the exhaust as a 328i mod creates a deep BMW exhaust tone, slight exhaust burbles, but is pretty tame overall. I did experience some exhaust drone on my 328i but it wasn't too bad and I was able to reduce exhaust drone with a few other modifications.

FAQS:
Will an aftermarket exhaust system add horsepower?
Exhaust systems free up horsepower by reducing back pressure on the engine; so you can expect a little bit of a horsepower increase from an aftermarket exhaust system. I would say the typical horsepower gain you can expect from an aftermarket exhaust system is 10-15hp. It is important that you look at dyno charts for the exhaust you are considering purchasing as most manufacturers have tested this. A cat back exhaust system will add more horsepower than an axle back exhaust system.

What size exhaust should I get for my car?
The size of your exhaust is the measured diameter of the exhaust. Typically the diameter of the exhaust is the inner diameter where the gas flows through. Choosing the correct exhaust diameter will impact horsepower gains, how loud the exhaust will be, and how much or if any exhaust drone you will experience.

Will an aftermarket exhaust system be louder than my stock exhaust?
It is almost always the case the an aftermarket exhaust system will be louder than the stock exhaust that is in place. If you are concerned about how loud your exhaust will be, you should try to hear it in person on the same make and model car as yours. Youtube videos are a good frame of reference to understand tone but its best if you can listen to an exhaust in person.

Will I experience drone with an aftermarket exhaust?
Exhaust drone is one of the biggest concerns for people when purchasing an aftermarket exhaust system. Exhaust drone is the resonance that you could potentially hear at certain RPMs while driving your car. Exhaust drone is most annoying when it happens at the RPM you are driving at on the highway. Exhaust drone can very quickly reduce the enjoyment of your car if not resolved.

Will adding an exhaust to my car void my warranty?
It is difficult to say whether adding an exhaust to your car will void your warranty or not. While the Magnuson-Moss Warranty Act makes it illegal for companies to void your warranty or deny coverage under the warranty simply because you used an aftermarket or recycled part it does not mean that your car will not get flagged by the dealer or manufacturer as being modified. You should have a discussion with your service advisor about warranty coverage and their point of view on modifications voiding warranties before doing any modifications.

The mount I used to keep the GoPro Hero 7 Black in place for this video:

Go Pro Suction Cup Mount
https://www.amazon.com/dp/B019PYKUM4/ref=cm_sw_em_r_mt_dp_U_WPEYEbRP29WW7

Go Pro Hero 7 Black
https://www.amazon.com/dp/B07QM3KS56/ref=cm_sw_em_r_mt_dp_U_MQEYEbA3QRD27

Видео Active Autowerke BMW 33i Exhaust on BMW 328i - cold start and revs канала SimpleMods