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191kieran191's all encompassing SV6 Manta exhaust thread (don't start another one!)

Discussion in 'VE Holden Commodore (2006 - 2013)' started by 191kieran191, Oct 21, 2012.

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  1. 191kieran191

    191kieran191 New Member

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    ok no im 99% sure its a major leak since i can cover both exhausts on both sides with my hands and my dad mate covering the other side with no pressure major ####up on the installer side he fixing monday
     
  2. Kiddo

    Kiddo You're serious bro?!

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    Make another vid when its fixed? Will be interesting to hear the difference.

    Glad it all worked out for you, in the end :)
     
  3. 191kieran191

    191kieran191 New Member

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    they found a tiny leak didn't fix the noise :bomb: how ever it did fix a small hissing nois. but the noise when backking off the accelator is coming from my HPipe so im going to replace it with a Xpipe
     
    Last edited: Nov 20, 2012
  4. Jarp

    Jarp Surely You Jest

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    Think I've said this previously but I reckon the ideal SIDI system for the LLT would be extractors, high flows, xpipe (up as close as possible to cats) then remove crimps and replace with another xpipe, hot dogs then some decent rear mufflers. Yes two xpipes....I think it aids in keeping the gases moving and also mixes up the sound a little more. Reckon 2.25" would suffice but if going cams or FI I reckon you could get away with 2.5...just my thoughts...no real science behind it other than how mine sounds with what I've done to it.
     
  5. Jesterarts

    Jesterarts Your freedom ends where mine begins

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    Just a suggestion. Rather than butchering a nice manta system with x pipes that may or may not fix your issue. Why don't you try and find a member looking for a manta and sell them your current system and by an xforce or something?

    You may even find someone with an xforce system that will straight swap for your manta?

    Just a thought.
     
  6. Atomic G

    Atomic G New Member

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    To my understanding an X-pipe actually flows better than a H-pipe, it has a greater scavenging effect on exhaust gasses. How much it will change flow is probably very negligible, but it will sound different(probably smoother and higher pitched).

    There is actually a system very much like that Jarp, the Hurricane system goes straight into an X-pipe merge after the cats. No second X pipe though.. I am getting the Hurricane high flow cats, midsection and rear mufflers for my Ute. I would get the Hurricane Headers, but I already have Pacemakers... In saying that though the Hurricane is a better choice, it has longer primaries and offers more torque down low compared to the Pacemakers. I'll post a video up when I get it done(hopefully in a weeks time).

    If it is bothering you so much what you could do is put your stock rear mufflers back on, might be a substitute until you get your exhaust sorted.
     
  7. Jesterarts

    Jesterarts Your freedom ends where mine begins

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    To clarify.

    A propery designed and place X-pipe will benefit peak power.

    A H-pipe gains are in the lower end torque.

    An exhaust with an X-pipe will sound smoother and a touch quieter than an exhaust with a H-pipe.
     
  8. Atomic G

    Atomic G New Member

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    Also the Manta system by design is "straight through", including the rear mufflers. So maybe even another make of slightly more restrictive rear mufflers might be another idea.
     
  9. Troy711

    Troy711 Retired Old Fart Staff Member

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    It might sound stupid but chuck the stock rear mufflers back on and see how it sounds. As Atomic G said, it could improve the sound but then again it could sound completely stock again.
     
  10. Atomic G

    Atomic G New Member

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    Any improvement?
     
  11. 191kieran191

    191kieran191 New Member

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    im waiting till the x pipe to get here on Monday and ill try and get it installed on same day the noise is coming from Hpipe i was told that was a problem with the manta exhaust (quote from manta themselves). so the x pipe will fix the noise and make the exhaust quieter witch dont bother me :)
     
  12. The X Man

    The X Man Donating Member

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    As soon as your start f**king with your car the problems never end, i doubt you will ever be satisfied.
     
  13. 191kieran191

    191kieran191 New Member

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    its only a X Pipe lol ease up bro
     
  14. Jesterarts

    Jesterarts Your freedom ends where mine begins

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    I suspect you are paraphrasing. It's isn't a problem with the manta exhaust. I suspect that the H-pipe is what is causing YOUR problem running a system WAY too big for your car/engine.

    Hope you get the noise sorted though. I know that every tiny thing that is not pefect with my car annoys me so I feel your pain.
     
  15. Not_An_Abba_Fan

    Not_An_Abba_Fan Exhaust Guru

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    This is the inherent problem with modifying cars and personal taste. I have ALWAYS said exhaust note is subjective. What sounds good to one person may sound like poo to another. This car is the very first time I have had anyone complain about the Manta note on the VE. (I have had one other person not quite happy with a VZ Clubby twin 3", but that's a different story and totally different reasons) It's not the first VE V6 that I have supplied a Manta twin 2 1/2" for, and all the others have been happy with the note it produces. I have been onto Manta and have spoken to Kieren a number of times to try and resolve this.

    Manta suggested another balance tube behind the hotdogs, but I believe the X pipe to be the best fix. Another balance tube will indeed reduce the noise, but I'm not confident enough to say it will for sure as I had never done it that way. But fitting an X pipe changes the way the exhaust flows so it will stop that noise Kieren doesn't like on deceleration.
     
  16. 191kieran191

    191kieran191 New Member

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    i just want my x pipe to hear the sound change :)
     
    Last edited: Nov 26, 2012
  17. 191kieran191

    191kieran191 New Member

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    got the X Pipe installed sounds amazing will get a vid up soon
     
  18. 191kieran191

    191kieran191 New Member

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    Here is a start up and rev with my new X Pipe. uploading a drive by atm
     
    Last edited by a moderator: Nov 21, 2016
  19. Troy711

    Troy711 Retired Old Fart Staff Member

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    Still sounds tractoresque at low revs but that could also be microphone quality on your phone.
     
  20. 191kieran191

    191kieran191 New Member

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    yer it was bad recording makes it sound tinny when its not. how ever i can say it sounds really good in person also i got a drive by uploading wait to you hear it under load. revs in neutral you cant hear the true sound of the exhaust
     
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