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Thread: sports exhaust recommendations for 1968 911

  1. #1
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    sports exhaust recommendations for 1968 911

    Considering two exhausts for my 1968 911 (US version, no air pump) and would like input on experiences installing and on use; which would you choose? street use, weekend driver for spirited cruising & canyon carving:

    1.Porsche Muffler (Sport) "RSR" Style - Aluminized Steel with Black Finish & 50 mm Dual Center Tail Pipes - JP Group Dansk 1620605800

    OR

    2.Porsche Muffler (Racing 911 R type) Primered Steel (70 mm Dual Tail Pipes) - JP Group Dansk 1620607000

    Does the second require modifications to the bumperette/rear license plate panel? Car has a set of headers right now....

    any advise or experiences welcome!!

    javier mirandes

  2. #2
    Best I've heard to date is the SCART muffler. I have one on my warmed over 2.7 '74 coupe. No drone. Only loud when you are on the throttle. Arling Wang is a distributor in the USA. By chance I know he has a muffler for your car. It was sent by mistake when my muffler was ordered.
    The muffler sounded so good and the quality is so fine that I ordered one for my 2.0 914. Doesn't sound quite like a 4 cylinder anymore. www.RStrada.com
    Beware, they are not inexpensive but you do get what you pay for!
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  3. #3
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    I heard the SCART has fitting issues to the flanges. Have any data on that? And that the raw finish one fit better. True? Chris
    1. Chris-Early S Registry#205
    2. '70 911S Tangerine
    3. '68 911L Euro Ossi Blue

  4. #4
    Quote Originally Posted by raspy2point2 View Post
    I heard the SCART has fitting issues to the flanges. Have any data on that? And that the raw finish one fit better. True? Chris
    Both of mine fit fine and the only ones I've seen are polished. As best I can tell it's polished after final assembly.
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  5. #5
    Quote Originally Posted by sithot View Post
    Both of mine fit fine and the only ones I've seen are polished. As best I can tell it's polished after final assembly.
    You can order the muffler from Martin in a raw finish.....he also offers end tip options.

    Sithot, how do like the SCART on your 914.....I'm considering getting one.
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    JEFF BRINTON
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    1968 911N
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  6. #6
    The tip on the polished units is part of the "tip". That is to say it's shaped on the end "square" like the original tips.
    The 914 muffler is really nice. It's a lot lighter than a stock 914 muffler and the sound is great. I think the 911 muffler is easily 5-6 # lighter.
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  7. #7
    '72 911T 3,0 liter MFI Albert Blue street/DE toy Jeff Higgins's Avatar
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    Quote Originally Posted by jmirandes View Post
    Considering two exhausts for my 1968 911 (US version, no air pump) and would like input on experiences installing and on use; which would you choose? street use, weekend driver for spirited cruising & canyon carving:

    1.Porsche Muffler (Sport) "RSR" Style - Aluminized Steel with Black Finish & 50 mm Dual Center Tail Pipes - JP Group Dansk 1620605800

    OR

    2.Porsche Muffler (Racing 911 R type) Primered Steel (70 mm Dual Tail Pipes) - JP Group Dansk 1620607000

    Does the second require modifications to the bumperette/rear license plate panel? Car has a set of headers right now....

    any advise or experiences welcome!!

    javier mirandes
    Your first choice will clear the rear valance on your '68 with no modifications whatsoever. It would look kind of like the first photo.

    Your second choice is really no "muffler" at all, by any stretch of the imagination. Think of a pair of megaphones going through a muffler can, with a few holes drilled through the sides of the megaphones where they are inside the can. There is no baffling of any kind anywhere, not inside the can (where it wouldn't do any good anyway), nor inside the megaphones. With these mounted on the car, you can shine a flashlight into them and see the merge collector. Hell, you could roll a golf ball through down to the merge collector. The third photo shows my slightly modified version of this "muffler", with the little scallops being where I modified it so I could retain heat. Oh, and in addition to the "muffler", you will need to buy the megaphone (between muffler and collector, the outlets are part of the muffler) portion separately and weld it in place.

    The second photo shows an actual muffler, the newer Dansk "RSR" with the wider spacing, which mimic the under the bumperettes outlet location of the one discussed above. Note that I now have shortened bumperettes and scallops cut in the valance to clear these outlets. I did this initially to clear the muffler described above. The outlets shown in the photo are a good deal smaller diameter and lower down than those on the straight-through "non-muffler" setup, so I now have a good deal more clearance than necessary. But, yes, long story short, you do need the short bumperettes to clear.

    What is not apparent in these photos is that the second muffler will actually clear with full length bumperettes and a stock valance. It comes with the outlets "dog-legged" down a bit to clear. I took advantage of already having the short bumperettes and scalloped valance, and cut the dog-legged pipes off, replacing them with straight. Just seemed to fit my car better. The part number for this muffler is JP Group Dansk 1620801700.
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  8. #8
    And Rennline has produced a GT3 muffler that will apparently clear all valences.

    http://www.rennline.com/GT3-Style-St...ductinfo/EX05/
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  9. #9
    Mark Curtin
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  10. #10
    Quote Originally Posted by 71six View Post
    That's it.
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