dent in exhaust affecting performance?

1. claff Frequent Poster Joined: Feb 2009 Posts: 755

   #1 4th June 2009, 22:37

   ok my exhaust makes this kind of throaty kind of sound even though it's got a normal ish backbox, it's quite loud as well. a few people have told me it sounds like it's got a hole somewhere but I doubt it has cuz i had it checked out by a garage and they said the exhaust hit something, also i cant see any evidence of a hole. anyway i took pictures:
   
   
   
   
   could this be it? cuz it looks like the dent is all regular shaped not like dents usually look, anyway would this be restricting flow at all
   
   thanks
2. gjs Infrequent Poster Joined: Nov 2006 Posts: 227

   #2 4th June 2009, 22:57

   thats a factory recess in the downpipe by the looks of it
3. fergy7197 Infrequent Poster Joined: May 2008 lanark Posts: 128 97 vts

   #3 4th June 2009, 23:37

   picked up my vts the other day - exhaust needs tightened up a bit - and blows a wee bit, sounds cool under full chat though, could be a simple case of that
4. York1366 Established Member Joined: Jan 2009 Louth/Lincolnshire Posts: 1540 Stage 4.5 Litchfield 725bhp R35 GTR

   #4 5th June 2009, 18:38

   quiet a smooth dent mabye is factory mate
5. tomgarrett Frequent Poster Joined: Feb 2007 UK Posts: 825 Icelandic Vtr

   #5 5th June 2009, 19:27

   that dent is definately from the factory...its meant to be there
6. Woods Infrequent Poster Joined: Oct 2008 Posts: 246

   #6 5th June 2009, 19:46

   X2. My standard manifold has exactly the same dent.
7. AlexGreen Regular Poster Joined: Nov 2008 Warlingham, Surrey Posts: 471 2001 Posi Blue VTR

   #7 5th June 2009, 22:45

   The few saxos ive seen with those down pipes have that.
   
   They must have put it in to help with clearance under the car.
8. JamesRm Forum Section Moderator Joined: Aug 2008 Liverpool Posts: 15517 Saxo VTR

   #8 5th June 2009, 23:42

   My saxo has them, there there from the factory as far as i know
   
   There too neat to be dents caused by kurbs etc
9. Sparco_Tom Saxperience Addict Joined: Jan 2007 Aylesbury, Bucks Posts: 12836 Yeaaahh Fiesta

   #9 6th June 2009, 08:48

   they are there to give some extra clearance to speedbumps and such like, if you notice it sits almost flush with the base of the sump
10. lharrowing Frequent Poster Joined: Nov 2008 norwich Posts: 941 Citroen Saxo Westcoast MK1

    #10 6th June 2009, 09:34

    ye deff ment to be there from factory although mine does have an extra dent on it. could this really make much performance effect ?
11. claff Frequent Poster Joined: Feb 2009 Posts: 755

    #11 6th June 2009, 15:37

    yeah it did look a bit too neat looking to be a dent just making sure
    
    and to the person above yeah it might do but it depends whereabouts it is... closer to the engine the dent is means more chance that its restrictive but it also matters on the size of it so best post a pic. if the dent is on a part where the pipe bends again this is bad because these areas are usually the bottlenecks anyway
12. lharrowing Frequent Poster Joined: Nov 2008 norwich Posts: 941 Citroen Saxo Westcoast MK1

    #12 6th June 2009, 15:42

    nah i believe its just after the manafacurer indent as it was lifted with forklift at scrapyard. so guess it should be ok
13. McBain Frequent Poster Joined: Feb 2008 London Posts: 613 Saxo Vts

    #13 6th June 2009, 15:43

    That dent is probably deliberate and is used by a jig or fixture used in the manufacturing process. Anyway, it's the factory silencers that cause the most restriction normally.