X pipe fab for a 308 carb car? | FerrariChat
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X pipe fab for a 308 carb car?

Discussion in '308/328' started by jimangle, May 10, 2022.

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  1. jimangle

    jimangle F1 Rookie

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    #1 jimangle, May 10, 2022
    The exhaust on my 79 308gts has long **** the bed. Instead of replacing it with something much quieter than the basically open exhaust it has now, has anyone tried to fabricate an x-pipe to a carb'd 308 or any 308? If so what were the positives and negatives?

    Thanks!
    Jim
     
  2. Steve Magnusson

    Steve Magnusson Two Time F1 World Champ
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    #2 Steve Magnusson, May 10, 2022
    Isn't the stock 308 muffler (or any aftermarket 308 muffler) an X-pipe? ;) Seriously, you'd almost have to significantly lengthen the whole system to have a place to put in an X-pipe. Have you tried sketching up what such a layout might look like?
     
    mike996 likes this.
  3. smg2

    smg2 F1 World Champ
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    #3 smg2, May 10, 2022
    X pipe wouldn't do anything as it's a flat plane crank vs cross plane.
     
    JCR likes this.
  4. Vonbarron

    Vonbarron Formula 3
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    #4 Vonbarron, May 10, 2022
    Mark C Harvey and smg2 like this.
  5. jimangle

    jimangle F1 Rookie

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    #5 jimangle, May 10, 2022
     
  6. Ferraripilot

    Ferraripilot F1 World Champ
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    #6 Ferraripilot, May 13, 2022
    I had a system fabricated using a 14” 2 in 2 out Magnaflow cross flow muffler. Hedman pipe tips finished it off for a stock Ansa look and it sounded fabulous
     
  7. jimangle

    jimangle F1 Rookie

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    #7 jimangle, May 14, 2022
    Happen to have any audio clips? Did you notice any mild performance increase?
     
  8. Ferraripilot

    Ferraripilot F1 World Champ
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    #8 Ferraripilot, May 16, 2022
    I have no idea re any performance increase but it sounds the part. This was on my 3.4L engine I built which made 274bhp at the wheels (dynojet), so it already moved pretty well.

     
    samsaprunoff likes this.
  9. jimangle

    jimangle F1 Rookie

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    #9 jimangle, May 16, 2022
    Thank you!!
     

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