HEICO SPORTIV four pipe exhaust system C70 D5 incl. diffusor

Hello guys,
for first I would excuse my self because I'm writing in English, but my writing in German is not perfect so I don't want to make a mess.
Before 4 months ago I have bought Volvo C70 D5a Summum 2007 (180PS) inclusively complete external Heico Exterior pack with four pipe exhaust system + diffusor.
http://www.heicosportiv.de/mainframe.asp?lang=en&e1=371
Is it normal that sound with this exhaust system in connection with D5 engine is only an make-up ( sound of exhaust system is crap = no sound at all) or my Volvo garage have made some mistake? On Heico site it is written that it has been build for T5 and D5 engines.
I have searched on net about this topic but ther is nothing writen about it.
For example sound on D5 engine and Donsilencioso exhaust system is amazing.
http://www.youtube.com/watch?v=VfpYgy8cYi8

Do you have any tips how exhaust sound could be improved and if this is normal?
If I upgrade engine unit with Heico or kit to 205PS would it help?

Thanks in advance
Alex

Dear Guido,
I almost forgot to give you a final result , after wasting almost 4K€ and a lot of my private time.
Here is what D5A engine pumped to 230HP could produce as sound at it's max.
I kept only Heico look but all the rest inside has been changed with TÜV in
Individual exhaust workshop.

What do you think mate?
Volvo C70 While standing
http://www.youtube.com/watch?v=xO-a-f1HUjI&feature=user
http://www.youtube.com/watch?v=T2HVZKdPiYg&feature=user
Volvo C70 Take off
http://www.youtube.com/watch?v=z5py593FPDk&feature=user

Cheer
Alex

Hi Alex,
it does not sound bad! I think its the best you can make out of the D5-sound.
Especially on higher revs, as well as in idle as when accelerating, there comes up a quite cool 'dark' sound which is pretty smart.
Good luck with your car!
Guido

Zitat:

Original geschrieben von Guido V70 D5

Hi Alex,
it does not sound bad! I think its the best you can make out of the D5-sound.
Especially on higher revs, as well as in idle as when accelerating, there comes up a quite cool 'dark' sound which is pretty smart.
Good luck with your car!
Guido

Cheers Guido.

Hi Alex,
sounds really great! I´ve an C70 D5 too and i´m thinking about optimizing the sound. But i want to keep the serial doublepipe optics. Which company was optimizing you sound now?
Greets
bluediamond

Zitat:

Original geschrieben von bluediamond

Hi Alex,
sounds really great! I´ve an C70 D5 too and i´m thinking about optimizing the sound. But i want to keep the serial doublepipe optics. Which company was optimizing you sound now?
Greets
bluediamond

Hi Bluediamond,
company is
http://www.individual-exhaust.de/
Check what they have made from X5 3.0d there is a video from Kabel1 "Reportage Abenteuer Auto"
http://www.individual-exhaust.de/.../index.html
Sound with 2 exhaust pipes will be even better, because of more back pressure.

P.S sound on my videos are made during DPF regeneration cycle so sound is much better then during off cycle.
Cheers
Alex

Thanks for the link! I visited the homepage now, looks very good!
But nearly 700km to drive... perhaps in the spring...;-)