Akrapovic Evolution Exhaust System

Cab5er · 07-01-2009, 03:02 PM

Mike
are the tips tucked all the way in with yours?
Looks like it'll be hard to fit a diffuser with 90 mm tips

mikewads · 07-04-2009, 08:34 AM

Quote:

Originally Posted by Cab5er

Mike
are the tips tucked all the way in with yours?
Looks like it'll be hard to fit a diffuser with 90 mm tips

The tips are adjustable front to back. I snugged my tips down where the muffer pipes just touch the perforated holes inside the tips.

A diffusser would be tight.

stylinexpat · 07-04-2009, 10:50 AM

Quote:

Originally Posted by mikewads

The tips are adjustable front to back. I snugged my tips down where the muffer pipes just touch the perforated holes inside the tips.

A diffusser would be tight.

Did you do any Dyno tests to see gains? I'm shopping for an exhaust now.

stylinexpat · 07-04-2009, 10:51 AM

Quote:

Originally Posted by mikewads

Couple of new pictures!

I jacked the car up yesterday to check out the color change of the exhaust.

WOW, beautiful

mikewads · 07-04-2009, 03:29 PM

Quote:

Originally Posted by stylinexpat

Did you do any Dyno tests to see gains? I'm shopping for an exhaust now.

No dyno test. I can feel a big difference though with the exhaust and Powerchip upgrade. I demonstrated Launch control with a friend today and it was having a hard time keeping the wheels from spinning going into 3rd gear!!!

stylinexpat · 07-04-2009, 05:11 PM

Quote:

Originally Posted by mikewads

No dyno test. I can feel a big difference though with the exhaust and Powerchip upgrade. I demonstrated Launch control with a friend today and it was having a hard time keeping the wheels from spinning going into 3rd gear!!!

Is your CEL light on? Any problems with you exhaust? How much did you pay for your exhaust?

stylinexpat · 07-04-2009, 05:16 PM

Quote:

Originally Posted by mikewads

No dyno test. I can feel a big difference though with the exhaust and Powerchip upgrade. I demonstrated Launch control with a friend today and it was having a hard time keeping the wheels from spinning going into 3rd gear!!!

How are you liking your pulleys and MS filter? If you had the choice to do things over again with the pulleys and MS filter would you do them again??

mixja · 07-04-2009, 05:26 PM

Quote:

Originally Posted by mikewads

No dyno test. I can feel a big difference though with the exhaust and Powerchip upgrade. I demonstrated Launch control with a friend today and it was having a hard time keeping the wheels from spinning going into 3rd gear!!!

Looks great, a few questions:

1. I'm assuming you have Powerchip Stage II software? Does this remove the CEL issue?

2. What's your opinion on drone/resonance with this exhaust?

3. Also on an unrelated note, have you had any CELs with the Powerchip software in cool temperatures (< 40F) when going WOT?

mikewads · 07-04-2009, 10:19 PM

Quote:

Originally Posted by stylinexpat

How are you liking your pulleys and MS filter? If you had the choice to do things over again with the pulleys and MS filter would you do them again??

Pulley Maybe. Filter No.

Quote:

Originally Posted by mixja

Looks great, a few questions:

1. I'm assuming you have Powerchip Stage II software? Does this remove the CEL issue?

Yes and Yes

2. What's your opinion on drone/resonance with this exhaust?

I have not noticed any drone that bothers me. Maybe a little around 2000-2500 rpm, but I'm never at that RPM very long.

3. Also on an unrelated note, have you had any CELs with the Powerchip software in cool temperatures (< 40F) when going WOT?

No

mixja · 07-05-2009, 02:26 AM

Thanks mikewads...

stylinexpat · 07-05-2009, 03:12 AM

Quote:

Originally Posted by mikewads

Pulley Maybe. Filter No.

Would you get the same Pulley ? Since you said no on the MS filter would you go for a Gruppe M or just stick to the factory one?

AmmNick · 07-05-2009, 03:21 AM

Stupid questioin maybe...... but can you convert all those improved figures to Metric system??

BMW-Motorsport · 07-05-2009, 03:44 AM

Quote:

Originally Posted by AmmNick

Stupid questioin maybe...... but can you convert all those improved figures to Metric system??

Dont you have a Akra vendor now in Australia:

Andrew Brien
34a Bignell Rd
Moorabbin 3189
www.southernbm.com.au
andrew@southernbm.com.au

03)9555-4049

AmmNick · 07-05-2009, 05:06 AM

Quote:

Originally Posted by BMW-Motorsport

Dont you have a Akra vendor now in Australia:

Andrew Brien
34a Bignell Rd
Moorabbin 3189
www.southernbm.com.au
andrew@southernbm.com.au

03)9555-4049

Thanks... I ll keep that for future reference (hopefully near future).

Its in Melbourne. I'll have a look at the site. Maybe someone in Sydney is doing it.

AmmNick · 07-05-2009, 05:12 AM

Doesn't say anything on the site about anything else really except Eisenmann

BMW-Motorsport · 07-05-2009, 06:57 AM

Quote:

Originally Posted by AmmNick

Doesn't say anything on the site about anything else really except Eisenmann

Found it here:

http://www.m3post.com/forums/showthr...ight=akrapovic

AmmNick · 07-05-2009, 08:02 AM

Thanks.. Appreciate that.

mikewads · 07-05-2009, 11:33 AM

Quote:

Originally Posted by stylinexpat

Would you get the same Pulley ? Since you said no on the MS filter would you go for a Gruppe M or just stick to the factory one?

Same pulley. The OEM M3 intake is the best cold air system I have seen on a car. It pulls cold air from 3 different sources.

I was sometimes hearing a rattle/shutter/vibration sound coming from the air box with the MS filter at certain enigine loads. I put my OEM back in for now and its gone. I plan to swap back to the MS next week to seem if the noise returns.

stylinexpat · 07-05-2009, 01:08 PM

Quote:

Originally Posted by mikewads

Same pulley. The OEM M3 intake is the best cold air system I have seen on a car. It pulls cold air from 3 different sources.

I was sometimes hearing a rattle/shutter/vibration sound coming from the air box with the MS filter at certain enigine loads. I put my OEM back in for now and its gone. I plan to swap back to the MS next week to seem if the noise returns.

Since you have a DCT did you feel any negatives using a pulley while having a DCT? I am planning on getting one this week and was thinking about one from EVO because they are near by and I could over to their place and have them install it for me

mikewads · 07-05-2009, 03:05 PM

Quote:

Originally Posted by stylinexpat

Since you have a DCT did you feel any negatives using a pulley while having a DCT? I am planning on getting one this week and was thinking about one from EVO because they are near by and I could over to their place and have them install it for me

No negatives. Can't say I noticed much after the install, but it's only 5-10hp.

EVO will be fine and letting them install it will be even better.

mixja · 07-05-2009, 03:10 PM

Quote:

Originally Posted by stylinexpat

Since you have a DCT did you feel any negatives using a pulley while having a DCT? I am planning on getting one this week and was thinking about one from EVO because they are near by and I could over to their place and have them install it for me

I've had a couple of strange things happen with AA pulley kit:

1. DCT Overheating warning in rush hour traffic - this happened three times in the space of a week around three months ago but has never happened again. Could be related to warmer ambient temperatures (as it is colder where I am at the moment) although it rarely gets above 85F where I live...

2. Occasionally the engine fans don't turn off for around 15 minutes after you've turned off the car - not sure if this is normal but it didn't seem normal to me.

stylinexpat · 07-05-2009, 03:25 PM

Quote:

Originally Posted by mixja

I've had a couple of strange things happen with AA pulley kit:

1. DCT Overheating warning in rush hour traffic - this happened three times in the space of a week around three months ago but has never happened again. Could be related to warmer ambient temperatures (as it is colder where I am at the moment) although it rarely gets above 85F where I live...

2. Occasionally the engine fans don't turn off for around 15 minutes after you've turned off the car - not sure if this is normal but it didn't seem normal to me.

Oh Oh

That doesn't sound too good, if something happened to that engine BMW would blame the pulleys then..

07-01-2009, 03:02 PM	#111
Cab5er Colonel 80 Rep 2,339 Posts Drives: 09 E90 M3 (Sold) 13 A1 Join Date: Feb 2007 Location: Fremont, Hainan iTrader: (22)	Mike are the tips tucked all the way in with yours? Looks like it'll be hard to fit a diffuser with 90 mm tips __________________ E90 ///M3/ AW/ Fox Red
	Appreciate 0 Quote

07-05-2009, 02:26 AM	#120
mixja Captain 50 Rep 780 Posts Drives: 2011 E90 DCT Silverstone Join Date: Jun 2008 Location: Beverly Hils, CA iTrader: (1)	Thanks mikewads...
	Appreciate 0 Quote

07-05-2009, 03:21 AM	#122
AmmNick MWDesign Project BMW E92 M3 Darth Maul Fan 1 Rep 49 Posts Drives: E92 M3 DCT Alpine White Join Date: Mar 2009 Location: Sydney City Australia iTrader: (0)	Convertion to Metric??? Stupid questioin maybe...... but can you convert all those improved figures to Metric system??
	Appreciate 0 Quote

07-05-2009, 05:12 AM	#125
AmmNick MWDesign Project BMW E92 M3 Darth Maul Fan 1 Rep 49 Posts Drives: E92 M3 DCT Alpine White Join Date: Mar 2009 Location: Sydney City Australia iTrader: (0)	Doesn't say anything on the site about anything else really except Eisenmann
	Appreciate 0 Quote

07-05-2009, 08:02 AM	#127
AmmNick MWDesign Project BMW E92 M3 Darth Maul Fan 1 Rep 49 Posts Drives: E92 M3 DCT Alpine White Join Date: Mar 2009 Location: Sydney City Australia iTrader: (0)	Thanks.. Appreciate that.
	Appreciate 0 Quote