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exhaust

  1. 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...
  2. 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...
  3. 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...
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