STAINLESS SLIP-IN 4"ID MUFFLER INSERTS

4" Muffler Insert, sold per pair. Features a solid baffle for greatest sound reduction. An economical way to add mufflers to 4" exhaust tips.

Slip-in style muffler inserts are the most efficient way of reducing exhaust noise with through transom exhaust tips. Don't be hassled by local enforcement agencies about excessive noise; our stainless steel muffler inserts are your quick and affordable answer. Noise level reductions up to 5 decibels with little loss in power, and they install in minutes! TCM slip-on muffler inserts fit 4" I.D. exhaust tips and may be trimmed to fit smaller or tapered tips or tailpipes.

Designed to slip into 4" diameter tips. 6 3/4" long. Manufactured slightly oversize and will require slight sanding to get a snug fit.

304L stainless steel. For Stock motors under 500 HP.