Stainless and Mild steel noise diff?

  1. Saxperience Hardcore! Joined: Mar 2008 Posts: 31279 Citroen Saxo VTS, S60 D5
    #1
    Is there much difference in sound between the 2 metals?

    Someone said stainless steel and mild steel gives out a different note? unsure how true it or am i being taken for a mug.

    I know stainless lasts longer but im asking about exhaust note on the exact same backbox..

    Cheers..
  2. Saxperience Addict Joined: Nov 2006 A farm shed in Aylesbury Posts: 14916 Corolla AE86 Peugeot 205 B18C (in bits)
    #2
    different metals will resonate differently. Silencer length, diameter and tailpipe size will also affect the sound. I doubt anyone has done a back to back test to specifically find out the difference though
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  3. Established Member Joined: Mar 2006 Farnham Surrey Posts: 1542 AX GT 16v turbo 6 speed with NOS 205 gti6 E 320
    #3
    from the systems ive fitted a stainless system is quet to start with but will get louder with age, a mild steel one is normally loud out of the box
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  4. Infrequent Poster Joined: Aug 2011 blackpool Posts: 204 saxo vtr
    #4
    as kam has already said its not as simple as stainless/mild it also depends on diameter, backbox size & brand also if you have 4-2-1 or similar fitted if you were to say what sort of noise you were after people could direct you raspy burbley ect
  5. Saxperience Addict Joined: Nov 2006 A farm shed in Aylesbury Posts: 14916 Corolla AE86 Peugeot 205 B18C (in bits)
    #5
    Even metal thickness will make a difference.
    If only it was simple....
  6. Saxperience Post Whore Joined: Dec 2002 United Kingdom Posts: 8390
    #6
    The BTB is 2.5 diameter, pretty thick stainless, and that resonates like fuck at just below 3k, has a metallic howl. My Scorpion is 2", still fairly thick, but that resonates with a different note at over 3.5k, so similar materials different sizes will make a noticable difference.

    You can definitely tell when youve fitted a stainless manifold over a cast one too.
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