First dyno for my stock C63 - disappointing result??
I love the fact that you can have the valves completely open and have it sound like a V8 supercar but I couldn't drive around all day like that. As long as I can adjust the valve position when I press the "on" button on the remote I'll be happy because at the moment it's either ALL or NOTHING...
I'm not sold on the auto function. It's weird, at idle the car has the valves open then when the car hits 3000RPM the valves shut and you can't hear anything at all... odd.
I'm sure I can make some adjustments - I've fired off some emails and hopefully on Monday I can get it sorted out.
If the valve in the "on" position can be adjusted I'm going to absolutely LOVE this exhaust...
Did you check out my video of the run down the street?
http://www.youtube.com/watch?v=hTZpHRYqUqk
I thought the auto function worked on throttle position. The wider open the throttle the louder it gets.
Is there any drone in the cabin when cruising with valves open?
There is a little bit of drone if you put it in Comfort mode with the valves open. To be honest I think if you're driving in comfort mode you're probably going to have the valves closed anyway. When you want to have some fun you press "open" on the remote to open those valves up, press the ESP button, 2 presses on the gearbox button and away you go

The car sounds incredible when you drive it hard. It kind of sounds like a cross between a formula 1 car and a V8 supercar - fantastic note!
I've only just had mine installed but Harun (RNS-11Z) has had his on for quite some time now so he's probably the best source of info...
I'll also get some videos of the car with the valves closed and in auto to give everyone a better idea of the exhaust.
The Best of Mercedes & AMG
Are you still happy with it? Any regrets?
WOW!!!!! Damn you can feel the difference, it's a completely different animal now!!!
The best stock run was 348HP, with the cargraphic exhaust and ECU tune I'm now getting 430HP at the rears. If my maths is correct, that's 23.5% more power????
That's insane!!!
I'm uploading the dyno results and exhaust runs to youtube now.
with EC V7 and Kleeman LTH, K&Ns my p31 2013 put down only 389.5 rwhp on a Mainline dyno today. But it managed 571 NM at the wheels.. still looking into it.







