Exhaust Comparison: Akrapovic vs. Dinan vs. Eisenmann
 

Starting this thread as discussion from another thread.

Have you heard sound comparison of Dinan vs. Eisenmann vs Akrapovic?

I have heard Eisenmann and Akrapovic, and like the Akrapovic.

Nice ride..congrats

here is the thread about the dinan free flow exhaust from another forum. Was researching Dinan last week and came accross this thread:

Dinan High Perf Free Flow exhaust install - XBimmers.com | BMW X6 Forum X5 Forum

Will probably do it once spring hits here in the northeast....;).

LeMans why are the three priced so differently? The Akrapovic system is quite a few grand more than the Dinan...thanks.

Akrapovic is titanium.

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

http://farm7.static.flickr.com/6194/...6c3294f3_z.jpg
http://farm7.static.flickr.com/6070/...842008f0_z.jpg
http://farm7.static.flickr.com/6203/...37d6838a_z.jpg

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



Eisenamann

http://www.ind-distribution.com/ezst...xhaust_bmw.jpg
http://www.ind-distribution.com/ezst...ar_exhaust.jpg





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


Akrapovic

http://www.akrapovic.com/typo3conf/e...s_podpisom.jpg
http://www.akrapovic.com/typo3conf/e...s_podpisom.jpg
http://www.akrapovic.com/typo3conf/e...plete_evo_.jpg



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

Akrapovic on BMW Safety cars

1M coupe Safety car


F10 M5 Safety Car

If these are set up the same way as they are for the ///M3, Akra is priced for a full system where as the others are slip on's. For the ///M3 once you add the mid-pipe you are fairly close in price........Phil

Thanks LeMans for starting this thread..The pics explain them all..:D

Sorry for the noob questions: catless downpipes refer to system without catalytic converters? I did read somewhere that there is a slight improvement in performance with the catless downpipes. Is it legal not to have catalytic converters?

Thanks in advance.

Not legal and in most states it won't pass inspection........Phil

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

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