Exhaust Comparison: Akrapovic vs. Dinan vs. Eisenmann

[X5MStorm]

I recently added the Akrapovic downpipes to my evo exhaust and did a MCChip retune.

Chiptuning, Eco-Optimierung und Motorsportabstimmungen für PKW, LKW und Nutzfahrzeuge. Chiptuning der neuesten Generation - mcchip-dkr.com

No errors and no backfiring. The flow is so good you can hear the whistle of the turbos out the back, which I found annoying at first but I'm now getting used to. The note is loud but not as deep as I had hoped for, nevertheless it really screams when I open it up. We put the car on the hub dyno and got a bit of a light show:

BMW X5M on Hub Dyno Blowing Out Flames - YouTube

[LeMansX5]

[northern2020]

Originally Posted by LeMansX5

Loaded question, so here is the answer.
In brief, What you pay is what you get(no offense).

I have Eisenmann Race exhaust on one of my BMWs and I have closely examined and heard Dinan and Akrapovic on few occasions. Akrapovic just stands out in comparison to others.

If you look at construction of three, Akrapovic is the most detailed and intricate, with better material(Titanium), workmanship and quality. Dinan is the cheapest looking of three.
Akrapovic is the lightest of three. Dinan for some reason does not state the weight of their exhaust, but is unofficially known to be heaviest.
Akrapovic is biggest setup(see pics below) and they also proivides the detailed information about their exhaust.

See pics and videos of 3 below.

You can get better than list prices on Eisenmann and Akrapovic.
Best comparison is seeing and hearing the three in person. I am getting Akrapovic next time.
BMW also uses Akrapovic on their Safety cars...see videos below.

Comparison chart:

----------------HP Gain----------Torque (Nm)---------------------------Weight (lbs)
Akrapovic ------11---------------11 lb-ft (15Nm) @ 2,270 rpm ----------50.7
Eisenmann-----14(Unofficial)--------?----------------------------------------53.2
Dinan--------------8 -----------------7 lb-ft @6000 rpm ------------------------?
Stock -----------------------------------------------------------------------------103



Dinan





This is X6 50i video...No Video of Dinan on X5M found.



Eisenamann







Welcome to Eisenmann North America
Eisenmann power gains - Eisenmann BMW E92 M3 Dyno Day


Akrapovic







http://www.akrapovic.com/typo3conf/e.../m_bm_t_1h.pdf

Akrapovic on BMW Safety cars

1M coupe Safety car


F10 M5 Safety Car

Where can you get better than list pricing on the full Akra?

[stlcity]

+1...on list price of Akra....

[Defib]

+2 on the Akrapovic. I've been looking around but no one wants to budge on price.

[iMpower]

Quality wise Akrapovic definately looks like a high quality craftsmanship, and the fact the BMW uses it too, that's a plus.

Like was mentioned before, you get what you pay for.

[LeMansX5]

[stlcity]

Sounds good..noob q though: why does it sound that it is sputtering towards the middle of the video?

[iMpower]

sounds awesome!

how does it sound during regular, city driving? barely louder than stock?

[Forster]

I feel as if none of these online videos do any justice for these exhaust systems... I mean the videos don't sound bad at all, however, in person its so much more amazing! Full Akra is awesome and top notch esp with that price :/
Def need an exhaust just don't know which one to pull the trigger on.