E550 4Matic Downpipe and AMG Exhaust Install
It made 520 whp / 601 wtq after the re-tune...
Before DP and exhaust install car was at 458 whp / 545 wtq ,
Speedriven DP and AMG exhaust made it 510 whp and finally after the retune its at 520 whp / 601 ,
If you do the math total gain is somewhere in +60 hp and +65 tq
https://youtu.be/Gy-mrGNaVtw
Any plans on hitting the drag strip? You should join me this sunday!
My goal was to get quiet E550 Exhaust to sound better (more aggressive , louder i guess ) and gain some HP at the same time.
Sound that is makes now is almost 2X louder then 2014 E63 (i went and test drove E63 to compare the sound) , it is almost too loud for my taste but i'm starting to like it.
After the install my exhaust smell is terrible , after talking to my ECU runner sounds like i will need to update it for catless DP and Exhaust and after that it should be a better. The way it is now it gives me headache from the exhaust smell that i get driving with windows down , i'm really hoping that new tune will bring it down a bit.
Regarding performance i have not really noticed much of the difference and i think part of is that i need a new tune and part is that exhaust is so aggressive and loud i'm afraid of getting too much attentions from cops and pushing it to hard

I'd like to thank team Speedriven and Jo for getting the job well done and supporting with all my questions and concerns along the way.
Here are pictures , and i will be uploading videos soon,





