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Dual exhaust not connected to back box

Discussion in 'Motors' started by neocon, May 18, 2019.

  1. Nasher

    Capodecina

    Joined: Nov 22, 2006

    Posts: 12,131

    But that's just more fakery. The one on the right is the functional one which goes directly to the back box. The one with the baffle is just linked to the side of that but has a longer path, so even when open most of the gasses would escape through the one on the right. All it will do is change the noise.
     
  2. Lopéz

    Man of Honour

    Joined: Oct 17, 2002

    Posts: 26,940

    Location: Leicestershire

    Yes it's correct, even if it does look crap.
     
  3. Kenai

    Capodecina

    Joined: Apr 5, 2009

    Posts: 17,658

    It still has 4 exhaust exits though, it's not a completely dead, totally fake tip as you seemed to think it was to start with. If you keep stretching your definition we'll be calling anything that isn't a straight pipe from the exhaust manifold fake.
     
  4. Nasher

    Capodecina

    Joined: Nov 22, 2006

    Posts: 12,131

    No it's 2 exits as 2 aren't even connected to the back box. It's 2 that split in to 4 with a baffle on the extra 2 outlets. The additional 2 do literally nothing except make it louder.
     
  5. paradigm

    Caporegime

    Joined: Aug 26, 2003

    Posts: 34,690

    Location: Staffordshire

    Is the car in the OP a Golf R Estate? I seem to recall the Estate has two fake exhausts. The hatch has 4 connected two of which are valved.
     
  6. Kenai

    Capodecina

    Joined: Apr 5, 2009

    Posts: 17,658

    On the estate this might be true, on the hatch it's definitely 4 genuine exits.
     
  7. NickXX

    Soldato

    Joined: May 19, 2005

    Posts: 7,007

    Is that not the point of a sport exhaust?
     
  8. Lashout_UK

    Capodecina

    Joined: Mar 2, 2004

    Posts: 11,651

    Location: SE England

    It's a very common thing to do these days and there are a lot of reasons for it. It's partly to do with avoiding transmitting noise and vibration into the body (and a way of avoiding heat and dirt-related issues, in some cases) but, more critically, it's to do with insurance claims.

    Exhaust systems are complex and costly affairs these days (catalytic converters, valving, DPFs, GPFs, etc.) so OEMs set them up like this; if you have a small rear-end shunt, it doesn't write off what is a very expensive exhaust system.

    Plus, as is predominantly the case these days, people just want the look. They don't care about anything else.
     
  9. Nasher

    Capodecina

    Joined: Nov 22, 2006

    Posts: 12,131

    Partly. But dual exhausts also lowers the tone. If you put a single outlet on a high performance car it can really scream.
     
  10. Conscript

    Sgarrista

    Joined: Oct 18, 2004

    Posts: 8,977

    Location: Kent

    Isn't it odd how much effort we expend making what is essentially a waste pipe look good...and how much debate it generates. It would be just as easy to hide exhaust pipes completely out of sight behind the bumper, yet manufacturers will actually go to the effort of making fake exits, just because we all think that an exhaust pipe should be on show.

    What an odd species we are :p
     
  11. Nasher

    Capodecina

    Joined: Nov 22, 2006

    Posts: 12,131

    I wouldn't mind it hidden. I just hate fake stuff on expensive items :/

    But preferably, they should use side pipes :D
     
  12. neocon

    Mobster

    Joined: Aug 24, 2006

    Posts: 4,893

    Car is estate, there are two back boxes.

    The hatch has a single back box. I think there are no valves on the estate.
     
  13. Finglonga

    Wise Guy

    Joined: Aug 20, 2008

    Posts: 1,648

    Location: Stafford

    The MK7.5 can be turned off and some of the last Mk7's but the early Golfs it needs either to be unplugged or OBD11/VCDS to silence the terrible thing. That was the thing I did the first week I got mine as prefer the real exhaust sound than fake vibrations..
     
  14. neocon

    Mobster

    Joined: Aug 24, 2006

    Posts: 4,893

    Yes you can turn off the sound in individual settings on Mk7 estate.
     
  15. AiiR

    Mobster

    Joined: Feb 19, 2009

    Posts: 2,687

    I noticed this in winter when dual exhaust BM 1 series cars only had exhaust coming out of 1 side. Looks like a poorly made knock-off.
     
  16. Nasher

    Capodecina

    Joined: Nov 22, 2006

    Posts: 12,131

    When you see stuff like this though, it just makes you cringe. All Mercs are like this now:
    [​IMG]

    Surely it can't cost much more to fit it properly. Some manufacturers even have the cheek to list a "chrome exhaust" in their features. False advertising or what...
     
    Last edited: May 18, 2019
  17. [TW]Fox

    Man of Honour

    Joined: Oct 17, 2002

    Posts: 154,489

    Those exhausts are real. The second one is closed when the engine is cold.
     
  18. Ev0

    Capodecina

    Joined: Oct 18, 2002

    Posts: 13,561

    Yup on my mk7 hatch in individual you could set the particular setting to ‘eco’ and it switched it off. I forget what the setting was called now!
     
  19. Shivy011

    Soldato

    Joined: Oct 26, 2013

    Posts: 7,632

    Location: Leicester/Loughborough

    As mentioned estate has 2x fake pre ".5" update. Hatch has 2x valved 2x regular
     
  20. mjt

    Capodecina

    Joined: Aug 31, 2007

    Posts: 17,578

    To be fair, you could get that as an option on the 3.0d E53 X5 almost 20 years ago :p