Custom Marine Inc.'s XTS Exhaust Tips offer owners of boats with high-performance engines the ability to quiet noise output without creating unwanted back pressure. The accessory manufacturer says that your exhaust with have a smoother tone at all rpm and speed ranges. CMI uses water as the noise-deadening medium. The XTS tips are fabricated of 316L stainless steel and available as a tip that installs on your boat's transom or as a silencer that clamps onto the end of your existing exhaust tips. Veteran performance boaters who are tired of ugly rust streaks on their boats' transoms will appreciate that the tips are fully passivated to minimize those streaks. Retail price starts at $595/pair. Contact www.custommarine.com.