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mac long tube

  1. Introductions
    Hey guys, I'm brand new to the site but not new to mustangs. I've had mine for years and mustangs have been a part of my family for generations. My grandma even had one. I'm considering changing the exhaust for my stock 2006 Mustang V6-Pony Performance Package. Is the "MAC Long Tube headers...
  2. 4.6L Talk
    I just bought some Mac Long Tube Headers and BBK O/R Xpipe to replace my stockheaders and O/R hpipe... Bolting up to my Borla Stinger Catback How much HP you think I'd get... 20? Big/Noticable Difference? I bought both of these NEW for $400 shipped. Heres the link...let me know what you think...