Akrapovic Evolution Titanium Exhausts @ ACG - Info, Numbers etc.

Peter@ACG San Diego · 3rd May 2012, 03:15

Since we are one of the original distributors for Akrapovic, I thought I'd give you guys an overview. Let me know if you have any questions or comments.

The Akrapovic Evolution Exhaust System for BMW e63/e64 M6

Engineers developed a complete aftermarket exhaust system for the M6. The connection tubes of the Evolution System, i.e. the complete ex manifold system, are newly designed in order to optimize the exhaust flow by offering a bigger tube diameter, interference crossover tubes to improve the vibration characteristics of the exhaust, and the discard of the second set of catalysts. The end mufflers are now split. This technique reduces the weight by 58.2lb.

The deconvolution of sound played a key role in the development of the exhaust system. We were able to change the sound characteristics of the high speed concept engine, based on the V-10-cylinder F1 motor, so that the advantages of the race 'genes' manifest considerably without appearing invasive in daily use.

The stock torque curve of the M6 V-10-cylinder has a dent in the area of 5.000 rpm. Akrapovič exhaust has the cure as the maximum torque increase of 12.3 ft/lb (at 5.970 rpm) is exactly within that area. The increase of power by 14.4 HP nearly homogeneously tunes in at around 4.000 rpm. This can be felt considerably and the 3,800lb heavy vehicle appears more dynamic.

Evolution complete system:

* titanium crossover tubes
* titanium end mufflers
* 4 titanium tail pipes

Hard facts:

* plus 14.4 HP (at 6.360 rpm)
* plus 12.3 ft/lb (at 5.970 rpm)
* minus 58.2 lb

The Akrapovic Slip-On Exhaust System for BMW e63/e64 M6

Slip-On system, homologated:

* titanium end mufflers
* 4 titanium tail pipes

Hard facts:

* plus 4 HP (at 7.200 rpm)
* plus 3 ft/lb (at 7.210 rpm)
* minus 29.3 lb

+ YouTube Video

+ YouTube Video

+ YouTube Video

Hasan Shaikh · 3rd May 2012, 08:43

Hi Peter!

I have always been a fan of Akrapovic. All of my friends have it on their bikes.

However, I always thought that going bigger diameter on a naturally aspirated car is a big "NO NO". I was always led to believe that this would actually reduce exhaust velocity. Can you please explain more on this.

Thanks and Regards
Hasan

ghost31711 · 3rd May 2012, 15:09

hi, i have a question.

how much would it cost? would you consider one of my kidneys as payment? (also a part of my weight reduction plan... lol)

Hasan Shaikh · 3rd May 2012, 15:34

LOL!

VGM6 · 3rd May 2012, 15:46

Hey Peter, love the exhaust just wondering is it possible to order the carbon tips separately if I already have the exhaust?

tmiked · 3rd May 2012, 16:07

Shouldn't this be in the sponsor or for sale?
Here is the old thread complete with dyno.

E63/64 M6 Akrapovic titanium exhaust system from IND

The_Phil · 3rd May 2012, 16:11

And so it looks like on a white one ;-)

Uploaded with ImageShack.us

It's an amazing exhaust system, it's top notch! And like in my dyno thread mentioned it really gains HP and torque.

VGM6 · 3rd May 2012, 16:18

FINALLY PICS of what it looks like on the alpine white I've had this system sitting under my bed waiting to be installed since December I can't wait to get back home and have them installed. Do you have any sound clips everything on YouTube is so hard to judge there's not 1 decent video. I could def vouch for these being the highest quality and extremely light though.

Peter@ACG San Diego · 3rd May 2012, 18:03

Quote:

Originally Posted by Hasan Shaikh

Hi Peter!

I have always been a fan of Akrapovic. All of my friends have it on their bikes.

However, I always thought that going bigger diameter on a naturally aspirated car is a big "NO NO". I was always led to believe that this would actually reduce exhaust velocity. Can you please explain more on this.

Thanks and Regards
Hasan

Hassan,

The OEM exhaust has a number of bottlenecks consisting of crash bends and high cell count catalytic converters. Those bottlenecks block the exhaust gas flow on your M6 quite a bit. With the use of high-flow catalytic converters and the optimization of the piping size and curvature they can get away with running larger diameter piping. This is not one of the companies which slaps the exhaust together to sell you on the pretty sound. They do copious amount of R&D to provide you with lowest weight, high HP gain and the lack of drone. Generally, whatever you have mentioned in your post is correct.

Quote:

Originally Posted by ghost31711

hi, i have a question.

how much would it cost? would you consider one of my kidneys as payment? (also a part of my weight reduction plan... lol)

I have a jar of kidneys over here from the previous customers' purchases

Quote:

Originally Posted by VGM6

Hey Peter, love the exhaust just wondering is it possible to order the carbon tips separately if I already have the exhaust?

The only tips which could possibly fit on the M6 exhaust is from the M3 setup; however, the piping size is different on the M6 exhaust. The titanium tips is your only option.

Quote:

Originally Posted by tmiked

Shouldn't this be in the sponsor or for sale?
Here is the old thread complete with dyno.

E63/64 M6 Akrapovic titanium exhaust system from IND

This is an informational thread without any pricing or special offers. Thanks for the link.

tmiked · 3rd May 2012, 18:06

Quote:

Originally Posted by VGM6

FINALLY PICS of what it looks like on the alpine white I've had this system sitting under my bed waiting to be installed since December I can't wait to get back home and have them installed. Do you have any sound clips everything on YouTube is so hard to judge there's not 1 decent video.

2 years ago.

M6Akpv01.f4v - YouTube

also:

http://www.youtube.com/watch?v=KW_dY...eature=related

http://www.youtube.com/watch?v=9be6_...eature=related

.

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