The Mustang Forum for Track & Racing Enthusiasts

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  • Welcome to the Ford Mustang forum built for owners of the Mustang GT350, BOSS 302, GT500, and all other S550, S197, SN95, Fox Body and older Mustangs set up for open track days, road racing, and/or autocross. Join our forum, interact with others, share your build, and help us strengthen this community!


  1. ibdboss

    Kooks Super Street Shorty Headers - Install Tips

    Hi All,I bought a set of these to install this spring on my Boss. Went with these as long tubes would have required change to cats etc... too costly for my budget right now.I know that several forum members have installed these, won't be installing myself, so I'm looking for whatever tips...
  2. Massimo

    Best Resonators for Lowering Volume of 5.0 with Full Exhaust

    I have a 2013 5.0 with a very loud exhaust. Not quite straight piped loud, but quite loud at anything above 30% throttle. It sounds great at WOT, but being that it’s a daily driver, I’d like it to be quieter when I’m just trying to take off from stoplights and such. So I’m looking at quieting it...
  3. SavetheManuals

    S197 FS: Flowmaster Outlaw and American Thunder Axlebacks/Mufflers

    Selling both Flowmaster Outlaw and American Thunder Axlebacks for S197.Both were bought used this year but I didn't even put on the Outlaws and only tried the American Thunders for a week. Ended up getting Borla S Type. Both are in great physical condition, although the black paint American...
  4. S197/Boss Mustang Track Parts - Come 'n Get 'Em!

    Clearing out few remaining S197 track/performance parts I had accumulated. Please PM me with any questions.Note: Shipping included within USA only.1. Custom adjustable panhard bar from Rod End Supply w/ Ingalls Engineering relocation bracket - $150 shipped Used/good condition. Great upgrade...
  5. Elegant solution to keeping exhaust valves closed on noise limited days

    Has anyone tried this on their 350/R? Saw someone in a FB group say he pulled the exhaust valve relay from the engine compartment fuse box and this kept the valves closed and the 350R was able to pass sound at Laguna Seca (90 db).EDIT: this "solution" appears to defeat all drive modes, which...