What Exhaust Mod do you have?

[itrocks4u]

Hi all

Asking this question in Canadian thread since I want an idea of pricing as well.

Looking for an exhaust mod to make it louder. I already have the competition package but I don't think it's loud enough.

What do you have. Not looking for a crazy expensive full exhaust but something more on the budget side.

Thanks!

[CanAutM3]

I have the MPE and love it. It is not the cheapest out there, but it is fully emissions compliant and fully warrantied matching the car (or two years if there is less than 2 years of warranty on the car). IMO it is the best sounding emissions compliant exhaust that I have heard on the F8X, and I've heard quite a few.

[ryanb06]

I have the Akrapovic Evolution. I like that it can go from stock noise levels in efficient to pretty loud in Sport and Sport+. The build quality is top notch and its all titanium so the entire thing is like 40lbs

[Parabolica]

What's the MPE weigh?

Are there any HP improvements with the Akra? I have read that there is no improvement with the MPE.

[GOLFFRR]

akra evo, ER DPs, and Macht Schnell Valve controller (Must)

[ryanb06]

Originally Posted by Parabolica

What's the MPE weigh?

Are there any HP improvements with the Akra? I have read that there is no improvement with the MPE.

There probably are some small gains but nothing detectable without a before and after dyno. I actually wanted the MPE but got the Akra significantly less and went with that. I think both are probably about the same in terms of quality although the MPE has had some canister splitting issues in the past and the Akra didnt.

Also not sure on the MPE weight but I believe it was also made out of titanium so it should be pretty light as well.

[MrSmartyPants]

You may want to try the valve controller first. Amazing how much its closed with the OEM algorithm even during Sport & Sport+. You can test having the valves open by pulling a couple fuses in the trunk (search the forum). Personally it made a huge difference for me having them open all the time. Only time I want them closed is cold start to avoid pissing off the neighbors.

Otherwise a midpipe is not a bad option and substantially cheaper than any of the exhausts. Maybe I'm cheap, maybe I'm poor compared to other M owners, but $3k to 4k is absolutely silly for an exhaust and the gains. I'd rather have some Ohlins or JRZ coilovers.

[tom @ eas]

The Macht Schnell EVC module fits the bill, features below:

- FULL control over Exhaust Valve Control at the touch of a button - on the fly or while stationary
- User settings configurable by computer or while installed in vehicle from driver’s seat
- Open/Close Exhaust Valve at YOUR command, or use BMW's factory profile for Exhaust Valve Control
- Optional User-defined Valve Control Setting at startup (Open/Closed) or default to OEM operation
- Quiet Cold Start in mornings compared to OEM operation
- Integrated USB port for feature updates and configuration changes
- InstallAID integrated LED confirms proper installation/operation while in use
- Regulated internal power supply enters sleep mode to prevent unnecessary power drain while vehicle is parked
- Easy 20-minute installation process with no wire cutting
- No dealer visits or coding required after installation
- Completely removable at any time

[JBM4]

Originally Posted by GOLFFRR

akra evo, ER DPs, and Macht Schnell Valve controller (Must)

Same here:

Akra Evo, Akra Dp's, Macht Schnell Valve controller... sounds insane!!

Sport+ all time,
Eco only if Cops around.

Highly Recommend if one can afford the price tag.

Don't get MPE, They crack.

[schnell325]

VRSF catless DPs, Active Autowerke catless midpipe, MPE and MS exhaust controller.

I’m happy.

[2HIGH~PSI]

Originally Posted by itrocks4u

Hi all

Asking this question in Canadian thread since I want an idea of pricing as well.

Looking for an exhaust mod to make it louder. I already have the competition package but I don't think it's loud enough.

What do you have. Not looking for a crazy expensive full exhaust but something more on the budget side.

Thanks!

Meh, Just unplug the valves. Loud enough. Most budget conscience mod there is.

If you want to spend a couple dollars. Buy the plugs from Ebay so your connections dont get gunked up and you dont have to tape them.

[itrocks4u]

Originally Posted by 2HIGH~PSI

Meh, Just unplug the valves. Loud enough. Most budget conscience mod there is.

If you want to spend a couple dollars. Buy the plugs from Ebay so your connections dont get gunked up and you dont have to tape them.

What plugs are you referring to?

[tom @ eas]

Originally Posted by 2HIGH~PSI

Meh, Just unplug the valves. Loud enough. Most budget conscience mod there is.

If you want to spend a couple dollars. Buy the plugs from Ebay so your connections dont get gunked up and you dont have to tape them.

Cheapest price isn't necessarily the best choice. Unplugging the valves will trigger EVC codes while not illuminating the CEL, which can be seen if going in for service. You would need to plug in the EVCs and clear codes before going in for service not to raise any eyebrows.

Here's the codes present with EVCs unplugged:



The Macht Schnell EVC will not trigger any codes since the EVC valves are still present in the system and automatically goes into passive mode when diagnostic equipment is plugged in.

Simply food for thought.

[MrSmartyPants]

Originally Posted by 2HIGH~PSI

Meh, Just unplug the valves. Loud enough. Most budget conscience mod there is.

If you want to spend a couple dollars. Buy the plugs from Ebay so your connections dont get gunked up and you dont have to tape them.

Even easier and better is pulling the valve motor fuses in the trunk.

Great to see the impact of an EVC without the cost.

[e90-4aj]

Originally Posted by tom @ eas

The Macht Schnell EVC module fits the bill, features below:

- FULL control over Exhaust Valve Control at the touch of a button - on the fly or while stationary
- User settings configurable by computer or while installed in vehicle from driver’s seat
- Open/Close Exhaust Valve at YOUR command, or use BMW's factory profile for Exhaust Valve Control
- Optional User-defined Valve Control Setting at startup (Open/Closed) or default to OEM operation
- Quiet Cold Start in mornings compared to OEM operation
- Integrated USB port for feature updates and configuration changes
- InstallAID integrated LED confirms proper installation/operation while in use
- Regulated internal power supply enters sleep mode to prevent unnecessary power drain while vehicle is parked
- Easy 20-minute installation process with no wire cutting
- No dealer visits or coding required after installation
- Completely removable at any time

This is a must have mod !!

[CanAutM3]

Originally Posted by Parabolica

What's the MPE weigh?

Are there any HP improvements with the Akra? I have read that there is no improvement with the MPE.

The MPE is 8kg lighter than stock.

The MPE does not provide any gains really worth mentioning, just as any rear section that keeps the all the cats. When you look at the MPE design, I don't see how it can be more efficient. So the MPE likely provides the same type of gains as the other rear section claim (0~10hp).

[CanAutM3]

Originally Posted by 2HIGH~PSI

Meh, Just unplug the valves. Loud enough. Most budget conscience mod there is.

If you want to spend a couple dollars. Buy the plugs from Ebay so your connections dont get gunked up and you dont have to tape them.

I find having the valves always open to be too boomy for my taste. There is a fair bit of drone with the valves open when cruising in high gear at highway speeds.

[CanAutM3]

Originally Posted by ryanb06

I have the Akrapovic Evolution. I like that it can go from stock noise levels in efficient to pretty loud in Sport and Sport+. The build quality is top notch and its all titanium so the entire thing is like 40lbs

The Akra Evo does indeed sound great .

But it is quite pricey and is not emissions compliant (for those that care). If one elects only the Akra rear section without the Evo mid section to maintain cost down and/or emissions compliance, I find it sounds rather tame.

[itrocks4u]

Originally Posted by e90-4aj

This is a must have mod !!

Originally Posted by MrSmartyPants

Even easier and better is pulling the valve motor fuses in the trunk.

Great to see the impact of an EVC without the cost.

Originally Posted by tom @ eas

The Macht Schnell EVC module fits the bill, features below:

- FULL control over Exhaust Valve Control at the touch of a button - on the fly or while stationary
- User settings configurable by computer or while installed in vehicle from driver’s seat
- Open/Close Exhaust Valve at YOUR command, or use BMW's factory profile for Exhaust Valve Control
- Optional User-defined Valve Control Setting at startup (Open/Closed) or default to OEM operation
- Quiet Cold Start in mornings compared to OEM operation
- Integrated USB port for feature updates and configuration changes
- InstallAID integrated LED confirms proper installation/operation while in use
- Regulated internal power supply enters sleep mode to prevent unnecessary power drain while vehicle is parked
- Easy 20-minute installation process with no wire cutting
- No dealer visits or coding required after installation
- Completely removable at any time

Aren't the valves already open for the competition package when in sports+?

[G35POPPEDMYCHERRY]

Originally Posted by itrocks4u

Aren't the valves already open for the competition package when in sports+?

Nope bmw has a crack ass aligothrim depneding on rpm speed and throttle angle lolo. so if you reving not in gear just to hear your exhaust. valves will be closed

[2HIGH~PSI]

Originally Posted by itrocks4u

What plugs are you referring to?

Took me some time to find it.



http://www.bimmerforums.com/forum/sh...lve-Delete-Kit

[2HIGH~PSI]

Originally Posted by tom @ eas

Cheapest price isn't necessarily the best choice. Unplugging the valves will trigger EVC codes while not illuminating the CEL, which can be seen if going in for service. You would need to plug in the EVCs and clear codes before going in for service not to raise any eyebrows.

Here's the codes present with EVCs unplugged:



The Macht Schnell EVC will not trigger any codes since the EVC valves are still present in the system and automatically goes into passive mode when diagnostic equipment is plugged in.

Simply food for thought.

I have taken my car in numerous times to BMW and have not plugged anything in. They havent said a word to me. I do not believe unplugging the valves has any hinderance on warranty.