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Thread: Question for all those who have removed their muffler on a TD5

  1. #1
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    Question for all those who have removed their muffler on a TD5

    OK, I am thinking about removing the centre mufler on my Defender TD5. The exhaust on these things is a silly set up with the muffler piece with flanges either end. What did you guys do? As there is a bend not far behind the rear of the muffler did you just cut the pipe and remove the muffle and put in a piece of 60mm exhaust with flared ends or replace the whole section including flanges? Is the effect noticeable?
    Thanks
    2011 Discovery 4 TDV6
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    2003 WK Holden Statesman
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  2. #2
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    My Tdi was the same all i did was get the muffler cut out and a hotdog muffler welded in , in your case if you want it gone just get a bit of pipe welded in place of the muffler

  3. #3
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    I got the whole muffler assembly and pipe and flanges replaced as a single piece (with a slight bend in the middle) so that I could put the original muffler back if I didn't like it. It took the muffler place about 45 minutes to fabricate it. Cost $80.

    I reckon it was worth doing for the lower down grunt, but don't expect a firebreathing V8 sounding vehicle - it is hardly any different noise wise and from inside you can't even pick that it is straight through. Outside it whistles more from behind (the turbo).

  4. #4
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    Quote Originally Posted by spudboy View Post
    I got the whole muffler assembly and pipe and flanges replaced as a single piece (
    so you dont have any muffler at all or just one?

  5. #5
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    Sorry - I meant I replaced the whole middle muffler section with the straight through pipe.

    I still have the final "pod" muffler at the end of the exhaust (after the rear axle). I think this little muffler at the end is straight through, so effectively I have no mufflers at all.

    Mine is a 130 TD5 BTW.

  6. #6
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    I had a 2.5" straight through system (Still with two mufflers though) put on my TDi, and I can't really hear the difference in exhaust note, which is what I wanted.
    Jeff

    1994 300TDi Defender
    2010 TDV8 RRS

  7. #7
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    I just had it removed and replaced by the local muffler shop. $60 I think.

    You definitely notice more pull low down. The noise is noticeable inside up to about 1500. After that you can't tell.

  8. #8
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    MickG is offline ChatterBox Silver Subscriber
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    I had the resonator at the rear and the muffler removed and a pipe welded in place of each......huge difference in noise (much noisier) and slightly better pick up from idle.
    Whole thing cost me about $50 to do and has made a slight difference to spool up.......lovely whistle from the turbo now which sounds awesome
    '99 Manual TD5 D2.......heap of money spent on it and it has ended

  9. #9
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    So are you guys saying there is a benefit from removing the centre muffler?? Why, how, what??

    Jimmy

  10. #10
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    Quote Originally Posted by Jimmy View Post
    So are you guys saying there is a benefit from removing the centre muffler?? Why, how, what??

    Jimmy
    It allows more free flow of the exhaust gases from the engine and therefore the turbo can spool up easier ( apparently ).

    On advice from here I recently got the standard centre muffler replaced with a free flow "sports" muffler and yes it is definitely worth the $140 or so to do it - somewhat better on take off and low down pull.

    I didn't go the straight thru pipe method, on advice of the muffler shop that a bit of back pressure is still needed even on Turbo Diesels ( or maybe they just wanted to upsell me )
    Last edited by waynep; 30th May 2007 at 07:41 AM.

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