Nippy Normans supply Touratech, Wunderlich and many other makes of accessories. Fantastic service and unbelievable performance.

Page 1 of 2 12 LastLast
Results 1 to 16 of 20

Thread: Acrapovic - Euro 3 v Euro 4

  1. #1
    Member
    Join Date
    Aug 2011
    Location
    south east england
    Posts
    78

    Acrapovic - Euro 3 v Euro 4



    I know there's a number of posts/threads on whether a Euro 3 Acra will fit a Euro 4 bike and the consensus is that it will. Interestingly my local dealer says there's a slight difference in the pipe sizes (no doubt to try and get a sale) and that if fitted on a Euro 4 bike it will run hot. My question is why would it run hot? I don't understand why a Euro 3 Acra (with presumably less noise deadening material inside) would affect a Euro 4 bike in this way. Does anyone know?

  2. #2
    Senior Member
    Join Date
    Oct 2016
    Location
    Hertfordshire, England
    Posts
    450
    I have a 2017 gsa 1200 and it has euro 3 pipe. Doesn't run hot. Just has removable baffles!

    Sent from my Pixel 2 XL using Tapatalk

  3. #3
    Subscriber Click here to find out how to Subscribe
    Join Date
    Mar 2005
    Location
    Bracknell
    Posts
    2,836
    I have done over 7k miles on my 2017 bike with my Euro 3 Akro with no problems apart from it sounds better


    Sent from my iPad using Tapatalk

  4. #4
    Subscriber Click here to find out how to Subscribe
    Join Date
    Mar 2007
    Location
    East Yorkshire
    Posts
    2,367
    I have a 2018 GS with an Akra from NN for a Euro 3. Perfect. Only difference I can see is mine has the single into twin inlets whereas the Euro 4 has single. My Euro 3 has welded in baffles.

    No issues whatsoever.

  5. #5
    Subscriber Click here to find out how to Subscribe
    Join Date
    Dec 2007
    Location
    Lincolnshire, Nottingham
    Posts
    1,491
    I have a 2014 Euro 3 Akra on my 2017 bike, fits perfectly, no problems, 12k miles on 2013 bike, 9k on my 2017 Rallye, still looks like new..

  6. #6
    Senior Member
    Join Date
    Mar 2018
    Location
    norcal
    Posts
    528
    Kev,if anything the EU-4 Akra would theoretically run hotter.
    EU-3 ; 1-2 muffler with two removeable 36 mm db-eaters...
    EU-4 ; 1-1 muffler with single non removeable 34 mm outlet...
    Buy the EU-3 !

  7. #7
    Member
    Join Date
    Aug 2011
    Location
    south east england
    Posts
    78
    Thanks gents. Euro 3 Acra it is ... and will sound better with the removable baffles.

  8. #8
    Subscriber Click here to find out how to Subscribe
    Join Date
    Oct 2008
    Location
    Cumbria
    Posts
    945
    Quote Originally Posted by Boxerlust View Post
    Kev,if anything the EU-4 Akra would theoretically run hotter.
    EU-3 ; 1-2 muffler with two removeable 36 mm db-eaters...
    EU-4 ; 1-1 muffler with single non removeable 34 mm outlet...
    Buy the EU-3 !
    Not so. EU-4 has two outlets and with a little ingenuity, removable baffles.
    Alan R
    Attached Images Attached Images  

  9. #9
    Senior Member
    Join Date
    Mar 2018
    Location
    norcal
    Posts
    528
    That picture shows a EU-3 Akra...EU-4 is single in and out !

  10. #10
    Subscriber Click here to find out how to Subscribe
    Join Date
    Oct 2008
    Location
    Cumbria
    Posts
    945
    Quote Originally Posted by Boxerlust View Post
    That picture shows a EU-3 Akra...EU-4 is single in and out !
    No it doesn’t, EU-4 single inlet, twin outlet.
    Alan R

  11. #11
    Senior Member
    Join Date
    Mar 2018
    Location
    norcal
    Posts
    528
    Did you build it yourself or is it the HP build by Akrapovic for BMW ?
    The generic Akrapovic pipes sold for the GS are like I mentioned E-3 1-2 with db-killers removeable or E-4 1-1 non removeable !
    Of course you can always drill them out yourself but still have a 2 mm smaller outlet...

  12. #12
    Subscriber Click here to find out how to Subscribe
    Join Date
    Oct 2008
    Location
    Cumbria
    Posts
    945
    Quote Originally Posted by Boxerlust View Post
    Did you build it yourself or is it the HP build by Akrapovic for BMW ?
    The generic Akrapovic pipes sold for the GS are like I mentioned E-3 1-2 with db-killers removeable or E-4 1-1 non removeable !
    Of course you can always drill them out yourself but still have a 2 mm smaller outlet...
    This. The EU-3 has the baffle securing bolt head accessible without tools: the EU-4 bolt heads are covered by the end carbon cover.
    Alan R

  13. #13
    Senior Member
    Join Date
    Oct 2016
    Location
    Hertfordshire, England
    Posts
    450
    No idea why anyone would buy an akra where you can't remove the baffles. Seems like a total waste of money.

    Sent from my Pixel 2 XL using Tapatalk

  14. #14
    Subscriber Click here to find out how to Subscribe
    Join Date
    Oct 2008
    Location
    Cumbria
    Posts
    945
    Quote Originally Posted by wileeeeeey View Post
    No idea why anyone would buy an akra where you can't remove the baffles. Seems like a total waste of money.

    Sent from my Pixel 2 XL using Tapatalk
    Look at the picture in post #8 and you will see no baffles present.
    Alan R

  15. #15
    Senior Member
    Join Date
    Oct 2016
    Location
    Hertfordshire, England
    Posts
    450
    Not saying it isn't possible, but it is a headache to do, surely? I took mine out with an Allen key the second I got home from the dealer. Took all of 20 seconds.
    Quote Originally Posted by Alan R View Post
    Look at the picture in post #8 and you will see no baffles present.
    Alan R
    Sent from my Pixel 2 XL using Tapatalk

  16. #16
    Subscriber Click here to find out how to Subscribe
    Join Date
    Oct 2008
    Location
    Cumbria
    Posts
    945
    Quote Originally Posted by wileeeeeey View Post
    Not saying it isn't possible, but it is a headache to do, surely? I took mine out with an Allen key the second I got home from the dealer. Took all of 20 seconds.

    Sent from my Pixel 2 XL using Tapatalk
    When I bought the bike new I specified an akra can from the dealer and they supplied a Euro 4 can to complement the Euro 4 spec bike.
    I’m an inveterate fiddler and asked on this site if anyone had removed the baffles from a Euro 4 can. Armed with the knowledge that it was possible, a drill and a pop riveter it took me 30 minutes including removing and replacing the can on the bike.
    Sounds great and not too loud.
    Alan R

Page 1 of 2 12 LastLast

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

Anyone attending a Ride Out or Event organised through the UKGSer Forums does so at their own risk.
UKGSer.com or anyone organising an event posted here will not be held responsible in any way for damage or personal injury sustained while attending any such events.

Members attending any such event do so at their own risk.

The text, images, graphics, sound files, animation files, video files, and their arrangement on this Website are all subject to copyright and other intellectual property protection. These objects may not be copied for commercial use or distribution, nor may these objects be modified or reposted to other sites without prior written permission.

Disclaimer: Use or depiction of the BMW logo or trademark throughout this web site is for illustrative and editorial purposes only, and to the benefit of the trademark owner, with no intention of infringement of the trademark.

The UKGSer Forums may include adult content for which it cannot be held responsible. Your use of this website constitutes acceptance of the UKGSER network privacy policy

"Its about being a grown up hooligan - and if that means a dark visor, remus open pipe and a bit of speeding out of town then all well and good"